CN102106092B - Antenna device and communication equipment using same - Google Patents

Antenna device and communication equipment using same Download PDF

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Publication number
CN102106092B
CN102106092B CN200980129332.7A CN200980129332A CN102106092B CN 102106092 B CN102106092 B CN 102106092B CN 200980129332 A CN200980129332 A CN 200980129332A CN 102106092 B CN102106092 B CN 102106092B
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China
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circuit
signal
terminal
intersection point
antenna
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CN200980129332.7A
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CN102106092A (en
Inventor
佐古元彦
福岛奖
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/24—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Transceivers (AREA)
  • Radio Transmission System (AREA)

Abstract

Disclosed is an antenna device that comprises an active circuit, to which the received signals from a first antenna and a second antenna are supplied, a first transmission line, and a second transmission line. The active circuit is sent power from a power supply circuit via the first transmission line, and is controlled by a first control signal from a first signal generating circuit via the second transmission line. With this configuration, the potential amplitude that can be used in the first control signal can be expanded, and the size of the antenna device is reduced without requiring a regulator.

Description

Antenna assembly and the communication equipment that has used this antenna assembly
Technical field
The present invention relates to the communicators such as television receiver, MIMO (utilizing the data transmit-receive of a plurality of antennas) system of the diversity reception mode that carries in vehicle etc. and the antenna assembly that this communicator adopts.
Background technology
Utilize Figure 30～Figure 32, the antenna assembly of diversity for television reception (diversity) mode of carrying in existing vehicle is described.
Figure 30 means the figure of the vehicle-mounted embodiment of existing diversity mode antenna.Existing television reception has with diversity mode antenna: stick on windshield 100 upper area the 1st film antenna 101 and stick on discretely the 2nd film antenna 102 of the upper area of windshield 100 with the 1st film antenna 101.The 1st film antenna 101 is connected with the 1st active circuit 103, and the 2nd film antenna 102 is connected with the 2nd active circuit 104.Existing television reception, is connected with the electronic unit of rear class (Figure 31 107) by the 1st transmission line 105 being connected with the 1st active circuit 103 and the 2nd transmission line 106 being connected with the 2nd active circuit 104 with the antenna assembly of diversity mode.
Figure 31 is the circuit block diagram of diversity mode antenna assembly for existing television reception.In Figure 31, existing television reception has with diversity mode antenna assembly 108: the 1st active circuit 103 being connected with the 1st film antenna 101 and the 2nd active circuit 104 being connected with the 2nd film antenna 102.And existing television reception has with diversity mode antenna assembly: the 1st transmission line 105 being connected with the 1st active circuit 103 and the 2nd transmission line 106 being connected with the 2nd active circuit 104.The 1st transmission line 105 is connected with the electronic unit 107 that carries out the control of diversity mode with the 2nd transmission line 106.
The 1st active circuit 103 has: the 1st variable matching circuit 109 that is transfused to the TV signal that the 1st film antenna 101 receives; The 1st amplifier 110 being connected with the outlet side of the 1st variable matching circuit 109; The 3rd high pass filter 111 that is connected and is connected with the 1st transmission line 105 with outlet side with the 1st amplifier 110.And the 1st active circuit 103 has the 3rd low pass filter the 112, the 1st adjuster (regulator) the 113, the 1st control signal decision circuit 114.The 3rd low pass filter 112 is connected with the 1st transmission line 105, is transfused to the signal of supplying with via the 1st transmission line 105 after next supply voltage and control signal stack.The 1st adjuster 113 is connected with the outlet side of the 3rd low pass filter 112 with the 1st control signal decision circuit 114.
Equally, the 2nd active circuit 104 has: the 2nd variable matching circuit 115 that is transfused to the TV signal that the 2nd film antenna 102 receives; The 2nd amplifier 116 being connected with the outlet side of the 2nd variable matching circuit 115; The 4th high pass filter 117 that is connected and is connected with the 2nd transmission line 106 with outlet side with the 2nd amplifier 116.And the 2nd active circuit 104 has: the 4th low pass filter the 118, the 2nd adjuster the 119, the 2nd control signal decision circuit 120.The 4th low pass filter 118 is connected with the 2nd transmission line 106, is transfused to the supply voltage of the supply via the 2nd transmission line 106 and the signal after control signal stack.The 2nd adjuster 119 is connected with the outlet side of the 4th low pass filter 118 with the 2nd control signal decision circuit 120.
Electronic unit 107 has: the 1st high pass filter 121 that is transfused to TV signal via the 1st transmission line 105; The 1RF circuit 122 being connected with the outlet side of the 1st high pass filter 121; Be connected with the 1st transmission line 105, be transfused in 1st power supply/control signal circuit for generating 123 the 1st low pass filter 124 of the signal after the supply voltage generating superposes with control signal.
Electronic unit 107 has: the 2nd high pass filter 125 that is transfused to TV signal via the 2nd transmission line 106; The 2RF circuit 126 being connected with the outlet side of the 2nd high pass filter 125; And be connected with the 2nd transmission line 106, be transfused to the supply voltage of generation in 2nd power supply/control signal circuit for generating 127 and the 2nd low pass filter 128 of the signal after control signal stack.Outlet side at 1RF circuit 122 and 2RF circuit 126 is connected with demodulator circuit 129, for TV signal is carried out to demodulation.
Figure 32 means the figure of the characteristic of the signal after supply voltage in existing diversity mode antenna assembly and control signal stack.The supply voltage of generation in 1st power supply/control signal circuit for generating 123 and 2nd power supply/control signal circuit for generating 127 and the waveform of the signal after control signal stack have been represented.
In Figure 32, transverse axis represents the time, and the longitudinal axis represents magnitude of voltage.Signal 130 after the stack of supply voltage and control signal always has the large magnitude of voltage of minimum voltage value 131 that can be level and smooth than the 1st adjuster 113 and the 2nd adjuster 119.
And signal 130 in more than 131 voltage, has been set the 1st magnitude of voltage the 132, the 2nd magnitude of voltage the 133, the 3rd magnitude of voltage the 134, the 4th magnitude of voltage 135 these 4 magnitudes of voltage, in chronological order switched voltage values between them at minimum voltage value.Utilize above-mentioned the 1st magnitude of voltage the 132, the 2nd magnitude of voltage the 133, the 3rd magnitude of voltage the 134, the 4th magnitude of voltage 135 these 4 magnitudes of voltage, 1st power supply/control signal circuit for generating 123 and 2nd power supply/control signal circuit for generating 127 are controlled respectively the 1st variable matching circuit 109 and the 2nd variable matching circuit 115.
Particularly, the signal 130 generating in 1st power supply/control signal circuit for generating 123 is supplied with to the 1st transmission line 105 by the 1st low pass filter 124.Here, signal 130 is compared with TV signal, owing to being the signal of low-down frequency, so therefore the 1st high pass filter 121 that cannot can pass through by TV signal can not arrive 1RF circuit.
The signal 130 of supplying with to the 1st transmission line 105, after having arrived the 3rd low pass filter 112 via the 1st transmission line 105, is supplied with to the 1st adjuster 113 and the 1st control signal decision circuit 114 through the 3rd low pass filter 112.Here, signal 130 based on above-mentioned same reason, cannot pass through the 3rd high pass filter 111.
In the 1st adjuster 113, signal 130 is flattened into the magnitude of voltage lower than the minimum voltage value of Figure 32 131, as power supply voltage, to the 1st amplifier 110 and the 1st control signal decision circuit 114, supplies with.
And in the 1st control signal decision circuit 114, decision signal 130 is equivalent to which the magnitude of voltage level in the 1st magnitude of voltage the 132, the 2nd magnitude of voltage the 133, the 3rd magnitude of voltage the 134, the 4th magnitude of voltage 135.In order to become the state to pre-assigned the 1st variable matching circuit 109 of each magnitude of voltage level, from the 1st control signal decision circuit 114, to the 1st variable matching circuit, supply with control signal.The control signal of the state of the 1st variable matching circuit based on above-mentioned is changed, to become and the optimal state of frequency band of wanting the TV signal of reception.
Because the TV signal being received by the 1st film antenna 101 is compared with signal 130, be very high frequency, so almost entirely do not supplied with to the 1st transmission line 105 by the 3rd low pass filter 112 ground.Then, by the 1st high pass filter 121, to 1RF circuit 122, supplied with.In 1RF circuit, TV signal being exaggerated, noise is removed, after frequency translation, quantization, to demodulator circuit 129, supply with and demodulated.Demodulator circuit 129 is supplied to the TV signal receiving in the 2nd film antenna 102 equally, and each TV signal is demodulated in demodulator circuit 129.After demodulation, it is synthetic that 2 TV signal are carried out high specific, can realize the improvement of receiving feature.
In above-mentioned existing antenna assembly, the supply voltage of supplying with to the 1st active circuit 103 and the 2nd active circuit 104 and control signal are in 1st power supply/control signal circuit for generating 123 and 2nd power supply/control signal circuit for generating 127, and signal 130 is shown in figure 32 applied like that.Therefore, the current potential width that control signal allows at minimum voltage value more than 131 regions limited, be difficult to control the 1st active circuit 103 and the 2nd active circuit 104 with large current potential width.
And, signal 130 is shown in figure 32 such, owing to being superimposed with control signal at supply voltage, so cannot directly using this state, as supply voltage, use, the 1st active circuit 103 and the 2nd active circuit 104 need to make the 1st adjuster 113 and the 2nd adjuster 119 that magnitude of voltage is level and smooth.Therefore, be difficult to realize the miniaturization of the 1st active circuit 103 and the 2nd active circuit 104.
Wherein, the formerly technical literature information as relevant to the present application, for example, be known to patent documentation 1,2.
[patent documentation 1] opens clear 61-136649 communique in fact
[patent documentation 2] Unexamined Patent 4-280125 communique
Summary of the invention
Antenna assembly of the present invention possesses: from the 1st antenna and the 2nd antenna, be transfused to active circuit, the 1st transmission line being connected with the corresponding active circuit of the 1st antenna and the 2nd transmission line being connected with the corresponding active circuit of the 2nd antenna that receives signal.The power supply of active circuit, from connecting the power-supply circuit of the electronic unit of the 1st transmission line and the 2nd transmission line, is supplied to via the 1st transmission line.The control signal that the control signal circuit for generating of the control of active circuit based on from electronic unit supplied with via the 2nd transmission line is carried out.
By this, form, via the 1st transmission line, only supply voltage is supplied with to active circuit, via the 2nd transmission line, only control signal is supplied with to active circuit.Therefore, in supply voltage, be not applied control signal voltage, can use large current potential width to control signal.And, because active circuit does not need adjuster, so can realize the miniaturization of active circuit.
Accompanying drawing explanation
Fig. 1 is the block diagram of the antenna assembly that relates to of execution mode 1.
Fig. 2 means the figure of characteristic of the supply voltage of the antenna assembly that execution mode 1 relates to.
Fig. 3 means the figure of characteristic of the control signal of the antenna assembly that execution mode 1 relates to.
Fig. 4 means the figure of characteristic of another control signal of the antenna assembly that execution mode 1 relates to.
Fig. 5 is the block diagram of another active circuit of the antenna assembly that relates to of execution mode 1.
Fig. 6 is the block diagram of the antenna assembly that relates to of execution mode 2.
Fig. 7 is the block diagram of the control signal decision circuit of the antenna assembly that relates to of execution mode 2.
Fig. 8 is the block diagram of the 1st antenna element that relates to of execution mode 3.
Fig. 9 is the block diagram of the 3rd antenna element that relates to of execution mode 4.
Figure 10 is the block diagram of the 2nd antenna element that relates to of present embodiment 5.
Figure 11 is that the 2nd antenna element group that present embodiment 5 is related to enters the figure to Anneta module.
The figure of action when Figure 12 means the differential mode (differentialmode) of the antenna element that present embodiment 5 relates to.
The figure of action when Figure 13 means the common mode of the antenna element that present embodiment 5 relates to.
Figure 14 is the block diagram of the 1st antenna element that relates to of present embodiment 5.
Figure 15 is the block diagram of the 3rd antenna element that relates to of present embodiment 5.
The figure of design example when Figure 16 means the differential mode of the 2nd antenna element that present embodiment 5 relates to.
The figure of design example when Figure 17 means the common mode of the 2nd antenna element that present embodiment 5 relates to.
The figure that passes through characteristic when Figure 18 means the differential mode of the antenna assembly that present embodiment 5 relates to.
The figure that passes through characteristic when Figure 19 means the common mode of the antenna assembly that present embodiment 5 relates to.
Figure 20 means the figure of the impedance operator in the port numbering 1 of the antenna assembly that present embodiment 5 relates to.
Figure 21 means the figure of the impedance operator in the port numbering 2 of the antenna assembly that present embodiment 5 relates to.
Figure 22 means the figure of the impedance operator in the port numbering 3 of the antenna assembly that present embodiment 5 relates to.
Figure 23 means the figure of the impedance operator in the port numbering 4 of the antenna assembly that present embodiment 5 relates to.
Figure 24 means the figure of the impedance operator in the port numbering 5 of the antenna assembly that present embodiment 5 relates to.
Figure 25 means the figure of the impedance operator in the port numbering 6 of the antenna assembly that present embodiment 5 relates to.
Figure 26 means the figure of the embodiment of the vehicle mounted antenna that present embodiment 6 relates to.
Radiation pattern when Figure 27 is the differential mode of the vehicle mounted antenna that relates to of present embodiment 6.
Radiation pattern when Figure 28 is the common mode of the vehicle mounted antenna that relates to of present embodiment 6.
Figure 29 mean adopt that 2 groups of present embodiments 6 relate to the figure of embodiment of vehicle mounted antenna.
Figure 30 means the figure of the vehicle-mounted embodiment of existing diversity mode antenna.
Figure 31 is the circuit block diagram of existing diversity mode antenna assembly.
Figure 32 means the figure of the characteristic of the signal after supply voltage in existing diversity mode antenna assembly and control signal stack.
In figure: 1-Anneta module; 2-antenna assembly; 3-communicator; 4-active circuit; 5a-the 1st antenna; 5b-the 2nd antenna; 6a-the 1st variable matching circuit; 6b-the 2nd variable matching circuit; 7a-the 1st amplifier; 7b-the 2nd amplifier; 8-control signal decision circuit; 9-electronic unit; 10a-the 1st high pass filter; 10b-the 2nd high pass filter; 11a-the 3rd high pass filter; 11b-the 4th high pass filter; 12a-the 1st low pass filter; 12b-the 2nd low pass filter; 13a-the 3rd low pass filter; 13b-the 4th low pass filter; 14a-the 1st transmission line; 14b-the 2nd transmission line; 15a-1RF circuit; 15b-2RF circuit; 16-power-supply circuit; 17a-the 1st control signal circuit for generating; 17b-the 2nd control signal circuit for generating; 18-demodulator circuit.
Embodiment
(execution mode 1)
Below, utilize Fig. 1, embodiments of the present invention 1 are described.Fig. 1 is the block diagram of antenna assembly of the present invention.
In Fig. 1, the communicator 3 of present embodiment 1 consists of Anneta module 1, antenna assembly 2, electronic unit 9.Antenna assembly 2 has: active circuit 4, the 1st transmission line 14a that electronic unit 9 is connected with active circuit 4 and the 2nd transmission line 14b.
Anneta module 1 has the 1st antenna 5a, the 2nd antenna 5b, and the reception signal of the 1st antenna 5a and the 2nd antenna 5b is supplied with to active circuit 4.And, by active circuit 4, the 1 antenna 5a and the corresponding connection of the 1st transmission line 14a, the 2nd antenna 5b and the corresponding connection of the 2nd transmission line 14b.
Active circuit 4 has: the 1st variable matching circuit 6a, the 1st amplifier 7a being connected with the outlet side of the 1st variable matching circuit 6a, the 3rd high pass filter 11a and the 3rd low pass filter 13a that are transfused to the signal that the 1st antenna 5a receives.The 3rd high pass filter 11a is connected with the outlet side of the 1st amplifier 7a, and is connected with the 1st transmission line 14a.The 3rd low pass filter 13a is connected with the 1st transmission line 14a, is transfused to the supply voltage of supplying with via the 1st transmission line 14a.
And active circuit 4 has: the 2nd variable matching circuit 6b, the 2nd amplifier 7b being connected with the outlet side of the 2nd variable matching circuit 6b, the 4th high pass filter 11b, the 4th low pass filter 13b and the control signal decision circuit 8 that are transfused to the signal that the 2nd antenna 5b receives.The 4th high pass filter 11b is connected with the outlet side of the 2nd amplifier 7b, and is connected with the 2nd transmission line 14b.The 4th low pass filter 13b is connected with the 2nd transmission line 14b, is transfused to the 1st control signal of supplying with via the 2nd transmission line 14b.Control signal decision circuit 8 is connected with the outlet side of the 4th low pass filter 13b.
The supply voltage of exporting via the 3rd low pass filter 13a is supplied with by each active element to active circuit 4 (such as the 1st amplifier 7a, the 2nd amplifier 7b, control signal decision circuit 8 etc.).
Electronic unit 9 has: the 1st high pass filter 10a that is transfused to the signal being received by the 1st antenna 5a via the 1st transmission line 14a; The 1RF circuit 15a being connected with the outlet side of the 1st high pass filter 10a; Be connected with the 1st transmission line 14a, be transfused in power-supply circuit 16 the 1st low pass filter 12a of the supply voltage generating.
Electronic unit 9 has: the 2nd high pass filter 10b that is transfused to the signal being received by the 2nd antenna 5b via the 2nd transmission line 14b; The 2RF circuit 15b being connected with the outlet side of the 2nd high pass filter 10b; Be connected with the 2nd transmission line 14b, be transfused to the 2nd low pass filter 12b of the 1st control signal generating in the 1st control signal circuit for generating 17a.And, in the output of 1RF circuit 15a and 2RF circuit 15b, be connected with demodulator circuit 18.
In Fig. 1, communicator 3 has: Anneta module 1, active circuit 4, the 1st transmission line 14a, the 2nd transmission line 14b and electronic unit 9.Communicator 3 has and will by the 1st antenna 5a, be received and receive and from the 2nd signal of 2RF circuit 15b output, the formation of the diversity reception mode of processing with best method in demodulator circuit 18 from the 1st signal of 1RF circuit 15a output with by the 2nd antenna 5b.As concrete processing method, such as considering high specific synthesis mode or selection mode etc.
Power supply carries out via the 1st transmission line 14a from power-supply circuit 16 to the supply of active circuit 4.
Fig. 2 means the figure of characteristic of the supply voltage of the antenna assembly that execution mode 1 relates to.The signal that power supply supply is carried out in urgency from demodulator circuit 18 after power-supply circuit 16 sends, in power-supply circuit 16, generate approximate direct voltage as shown in Figure 2, and to the 1st low pass filter 12a output.Because the supply voltage to the 1st low pass filter 12a output is approximate direct voltage, so can pass through the 1st low pass filter 12a.
The cut-off frequency of the 1st low pass filter 12a is configured to, under the frequency of the signal being received by Anneta module 1, can obtain enough attenuations, and be configured to supply voltage to pass through loss minimum.Thus, can prevent that the signal being received by the 1st antenna 5a from passing through the situation that the 1st low pass filter 12a supplies with to power-supply circuit 16.And, can make the major part of the signal that received by the 1st antenna 5a supply with to 1RF circuit 15a, can improve the receiving feature of communicator 3.
And, by the supply voltage after the 1st low pass filter 12a, via the 1st high pass filter 10a, to 1RF circuit 15a, supply with hardly.Its reason is, the cut-off frequency of the 1st high pass filter 10a is configured under the frequency of the signal being received by the 1st antenna 5a, minimum by loss, and is configured to not pass through as the supply voltage of approximate D. C. value.Thus, can prevent from supplying with power supply not to 1RF circuit 15a, can reduce current sinking.
Then, by the supply voltage after the 1st low pass filter 12a, via the 1st transmission line 14a, to the 3rd low pass filter 13a, supply with.The setting of the cut-off frequency of the 3rd low pass filter 13a and the 3rd high pass filter 11a, sets by the method that the situation with the 1st low pass filter 12a and the 1st high pass filter 10a is same.Thus, can prevent that the signal that received by the 1st antenna 5a from supplying with the transmission loss causing to other circuit by the 3rd low pass filter 13a.And the part that can prevent supply voltage is supplied with and the power supply that causes is supplied with loss to the 1st amplifier 7a via the 3rd high pass filter 11a.
The supply voltage of supplying with to the 3rd low pass filter 13a, by the 3rd low pass filter 13a, is supplied with to the 1st amplifier 7a, the 2nd amplifier 7b, control signal decision circuit 8.
Here, the supply voltage of supplying with from power-supply circuit 16 is different from the situation of the existing antenna assembly shown in Figure 31, Figure 32, as shown in Figure 2, is not applied control signal in supply voltage, and supply voltage becomes approximate direct voltage.Therefore,, in antenna assembly of the present invention, can as existing antenna assembly, not need adjuster by active circuit 4.Therefore, can cut down two adjusters to existing antenna assembly, thereby realize small-sized antenna assembly.And, owing to not needing to install adjuster, so can realize raising, the cost degradation of production efficiency.
In addition, in execution mode 1, from demodulator circuit 18 to power-supply circuit 16, sent the signal of urging power supply to supply with, but be not limited thereto.For example, other treatment circuits that also can be not shown from Fig. 1 send the signal of urging power supply to supply with.
And in execution mode 1, as shown in Figure 2, power-supply circuit 16 is after receiving the signal of urging power supply supply, constantly to active circuit 4 supply line voltages from demodulator circuit 18.But, when the 1st antenna 5a or the 2nd antenna 5b receive the signal of the large power level that makes the 1st amplifier 7a or the 2nd amplifier 7b distortion level, can send to urge from demodulator circuit 18 to power-supply circuit 16 and stop the signal that power supply is supplied with.Thus, can prevent the 1st amplifier 7a or the 2nd amplifier 7b distortion, cause significantly deteriorated situation of receiving feature, and can realize the reduction of power consumption.In order to realize above-mentioned situation, for example, can in electronic unit 9, configure the testing circuit that can detect the performance number of inputting in 1RF circuit 15a or 2RF circuit 15b.
In addition, can be configured to according to the performance number of the signal being transfused in 1RF circuit 15a or demodulator circuit 18 or signal quality (C/N (Carrier To Noise Ratio), BER (Bit ErrorRate) etc. represent the desired value of the quality of reception signal) etc., the magnitude of voltage of the supply voltage that power-supply circuit 16 subtend active circuits 4 are supplied with carries out inching.Thus, can reduce the characteristic deviation of the antenna assembly that the manufacture deviation because of active circuit 4, the 1st transmission line 14a causes.
The 1st control signal is carried out via the 2nd transmission line 14b from the 1st control signal circuit for generating 17a to the supply of active circuit 4.
Fig. 3 means the figure of characteristic of the control signal of the antenna assembly that execution mode 1 relates to.When the signal that urge to send the 1st control signal from demodulator circuit 18 after the 1st control signal circuit for generating 17a sends, in the 1st control signal circuit for generating 17a, generate the 1st control signal as shown in Figure 3, and to the 2nd low pass filter 12b output.
In Fig. 3, the 1st control signal circuit for generating 17a has generated the 1st control signal of Temporal changes according to 9 grades of more than 0V current potentials.Control signal has not superposeed as the situation of the existing antenna assembly of Figure 32 in supply voltage.Therefore, antenna assembly 2 of the present invention can utilize broad current potential width to generate control signal.Thus, the receiving sensitivity in the time of can improving control signal decision circuit 8 reception control signal.And antenna assembly 2 of the present invention can easily increase the progression (being 9 grades of current potentials in Fig. 3) of control signal, thereby in active circuit 4, can realize the more control of height.
The cut-off frequency of the 1st low pass filter 12a is configured under the frequency of the signal that receives at Anneta module 1, can obtain enough attenuations, and be configured to the 1st control signal to Fig. 3 of the 2nd low pass filter 12b output roughly by (minimum by loss).Therefore, can prevent that the signal being received by the 2nd antenna 5b from passing through the situation that the 2nd low pass filter 12b supplies with to the 1st control signal circuit for generating 17a.And, can make the major part that is received signal by the 2nd antenna 5b supply with to 2RF circuit 15b.Thus, can improve the receiving feature of communicator 3.
And, by the 1st control signal after the 2nd low pass filter 12b, can to 2RF circuit 15b, supply with through the 2nd high pass filter 10b hardly.Its reason is, the cut-off frequency of the 2nd high pass filter 10b is configured under the frequency of the signal being received by the 2nd antenna 5b, minimum by loss, and is configured to the 1st control signal and do not pass through.Thus, can prevent from supplying with power supply not to 2RF circuit 15b, can reduce current sinking.
Then, by the 1st control signal after the 2nd low pass filter 12b, via the 2nd transmission line 14b, to the 4th low pass filter 13b, supply with.The setting of the cut-off frequency of the 4th low pass filter 13b and the 4th high pass filter 11b, sets by the method that the situation with the 2nd low pass filter 12b and the 2nd high pass filter 10b is same.Thus, can prevent that the signal that received by the 2nd antenna 5b from supplying with the transmission loss causing to other circuit by the 4th low pass filter 13b, and, can prevent from via the 4th high pass filter 11b, to the 2nd amplifier 7b, supplying with because of a part for the 1st control signal the loss that causes the 1st control signal.
The 1st control signal of supplying with to the 4th low pass filter 13b is supplied with to control signal decision circuit 8 through the 4th low pass filter 13b, and the 1st control signal is deciphered thus.The control signal corresponding with deciphering result by from control signal decision circuit 8 to the 1st variable matching circuit 6a and the 2nd variable matching circuit 6b send, the 1st variable matching circuit 6a and the 2nd variable matching circuit 6b become for receiving the best of the signal of regulation and form.Thus, can always realize the communicator 3 with good receiving feature.
In addition, although the 2nd transmission line 14b by a holding wire carries out to the control signal of the 1st variable matching circuit 6a and the 2nd variable matching circuit 6b transmission, but as shown in Figure 3, owing to generating the 2nd control signal with broad potential range, so can send a large amount of information in the unit interval.
And, can replace the 1st control signal shown in Fig. 3, and utilize the different sine wave of frequency of the signal receiving from Anneta module 1.Even if use sinusoidal wave amplitude, phase place, also can send the 1st control signal.Thus, the bandwidth of can constriction the 1st control signal occupying, can avoid causing that because of the 1st control signal the receptivity of communicator 3 is deteriorated.
And, also can replace the 1st control signal shown in Fig. 3, and adopt the 1st control signal as shown in Figure 4.Fig. 4 means the figure of characteristic of another control signal of the antenna assembly that execution mode 1 relates to.The waveform wavy with the rectangle of the 1st control signal shown in Fig. 3 of the 1st control signal shown in Fig. 4 compared, and becomes smoother waveform.Thus, compare with the 1st control signal shown in Fig. 3, the bandwidth that the 1st control signal of Fig. 4 can constriction be occupied, can avoid the receiving feature of communicator 3 deteriorated.
And then the 1st transmission line 14a and the 2nd transmission line 14b can consist of coaxial line.In this situation, supply voltage and the 1st control signal are supplied between the holding wire of coaxial line and shielding (shield) line.
In addition, in execution mode 1, active circuit 4 can become the formation without control signal decision circuit 8.In this situation, become the 1st control signal directly to the formation of the 1st variable matching circuit 6a and the 2nd variable matching circuit 6b input, by the 1st control signal self, control the 1st variable matching circuit 6a and the 2nd variable matching circuit 6b.Thus, control signal decision circuit 8 can be deleted, more small-sized antenna assembly can be realized.
And the 1st high pass filter 10a, the 2nd high pass filter 10b, the 3rd high pass filter 11a, the 4th high pass filter 11b can be the circuit formations that 1 element capacitor has been inserted in only series connection.By so simple formation, also can, when stoping the passing through of supply voltage and control signal, realize the minimizing of necessary parts number.
And, comparing with the 1st high pass filter 10a, the 2nd high pass filter 10b can be that filtering progression more forms.Owing to comparing with supply voltage, the frequency of the 1st control signal is generally higher, so it is also contemplated that the frequency of the signal receiving close to Anneta module 1.Therefore, increase the filtering progression of the 2nd high pass filter 10b, the attenuation in frequency band that the 1st control signal occupies is increased, prevent that the receiving feature of communicator 3 is deteriorated.Because the signal receiving with Anneta module 1 is compared, the performance number that can envision the 1st control signal is larger, so stop the 1st control signal to be leaked to 2RF circuit 15b by such formation, deteriorated for the receptivity that does not make communicator 3 is very important.Reason based on same, compares with the 3rd high pass filter 11a, and the 4th high pass filter 11b can be the more formation of filtering progression.
In addition, the 1st low pass filter 12a, the 2nd low pass filter 12b, the 3rd low pass filter 13a, the 4th low pass filter 13b can be the circuit formations that 1 element inductor has been inserted in only series connection.By such formation, also can, when the reception signal that stops Anneta module 1 to receive passes through, realize the minimizing of necessary parts number.
And the antenna assembly 2 shown in Fig. 1 is special-purpose for receiving, but can be also the device that can receive and dispatch.In this situation, can with the 1st amplifier 7a, the 2nd amplifier 7b amplifier that is ready for sending respectively use in parallel that receive use, by filter or switch, switch and use the amplifier that sends with and receive use.Thus, can transmitting/receiving wireless signal and can realize small-sized communicator.
And, in Fig. 1, just lower the 1st variable matching circuit 6a, the 2nd variable matching circuit 6b connecting that utilizes the 1st control signal to control at the 1st antenna 5a, the 2nd antenna 5b, but do not need to be only defined in this formation.For example, also can control the characteristic (for example, P1dB, NF characteristic etc.) of the 1st amplifier 7a, the 2nd amplifier 7b self.In this situation, can consider pre-configured variable element in the transistor peripheral circuit of characteristic that can change the 1st amplifier 7a, the 2nd amplifier 7b (such as varactor capacitor (varicap capacitor) etc.), the mode that the component value of this variable element is changed based on the 1st control signal.
Fig. 5 is the block diagram of another active circuit of the antenna assembly that relates to of execution mode 1.
In Fig. 5, be with the difference of the active circuit 4 of Fig. 1, removed the 1st variable matching circuit 6a and the 2nd variable matching circuit 6b.Replace, be provided with the 1st by-pass switch 19a being connected with outlet side with the input side of the 1st amplifier 7a, the 2nd by-pass switch 19b being connected with outlet side with the input side of the 2nd amplifier 7b.And, removed the control signal decision circuit 8 of Fig. 1, make to be directly imported into the 1st by-pass switch 19a, the 2nd by-pass switch 19b by the 1st control signal of the 4th low pass filter 13b.
In the formation of Fig. 5, the 1st by-pass switch 19a, the 2nd by-pass switch 19b prevent the 1st amplifier 7a, the 2nd amplifier 7b to input large reception signal, the 1st amplifier 7a, the 2nd amplifier 7b distortion.And, play the 1RF circuit 15a, the 2RF circuit 15b that prevent electronic unit 9 and input large reception signal, the effect of the output distortion of 1RF circuit 15a, 2RF circuit 15b.
Particularly, in active circuit 4 or electronic unit 9, prepared the testing circuit (not shown) that performance number to the received signal detects in advance, when the performance number receiving is that certain value is when following (while conventionally moving), the 1st by-pass switch 19a, the 2nd by-pass switch 19b disconnect, receive signal from the 1st amplifier 7a, the 2nd amplifier 7b by being exaggerated.
The performance number of the signal of deriving when testing circuit is certain certain value when above, by the 1st control signal, makes the switch connection of at least one party in the 1st by-pass switch 19a and the 2nd by-pass switch 19b.Thus, owing to receiving, signal is walked around the 1st amplifier 7a or the 2nd amplifier 7b can not be exaggerated, so can avoid receiving distorted signals, causing the situation that receiving feature is deteriorated.
In addition, also can replace the 1st by-pass switch 19a, the 2nd by-pass switch 19b are connected, and stop power-supply circuit 16 to the 1st amplifier 7a, the 2nd amplifier 7b supply power.Thus, can realize little power consumption, communicator 3 that receptivity is outstanding.
Wherein, in an embodiment of the present invention, " active circuit " refers to the circuit that at least contains an active element, for example, refers to the circuit that mixes the amplifier be equipped with the filter consisting of passive component and contain active element etc.And in active circuit 4, the object elements of being controlled by the 1st control signal can have a plurality of.For example, the 1st, the 2nd variable matching circuit 6a, the 6b of Fig. 1 and the 1st, the 2nd by-pass switch 19a, the 19b of Fig. 5 can exist simultaneously, and, can control the characteristic of the 1st, the 2nd amplifier 7a, 7b simultaneously.The control of having combined above-mentioned a plurality of elements can be by effect of the present invention, can utilize extensively the voltage width of the 1st control signal of supplying with to active circuit 4 by the 2nd transmission line 14b to realize.
And, in Fig. 1,1RF circuit 15a, 2RF circuit 15b are arranged on to electronic unit 9 sides, but can are also that these circuit are included in the formation in active circuit 4.Thus, the frequency of the reception signal transmitting in the 1st, the 2nd transmission line 14a, 14b can be reduced in, the loss in transmission line can be reduced.In this situation, for controlling the control signal of 1RF circuit 15a, 2RF circuit 15b, be also contained in the 1st control signal.
In addition, preferred antenna module 1 is 1 small modules.Its reason is, by the 1st transmission line 14a of a circuit, carried out supply voltage to the supply of the active element under the active element under the 1st antenna 5a (such as the 1st amplifier 7a etc.) and the 2nd antenna 5b (such as the 2nd amplifier 7b etc.).Consider this situation, combination or the structure of the antenna that although preferably the 1st antenna 5a and the 2nd antenna 5b are approached configuration, coefficient correlation is low, the insulation between antenna uprises.An example as realizing the antenna configuration that this please condition, is made as balanced type antenna by the side in the 1st antenna and the 2nd antenna, and the opposing party is made as to unbalance type antenna.Detailed description for this antenna configuration will be narrated in the back.
In addition, even if use the antenna of partial wave direction quadrature, also can realize small-sized, low coefficient correlation.
(execution mode 2)
Below, utilize Fig. 6,7 pairs of embodiments of the present invention 2 to describe.Fig. 6 is the block diagram of the antenna assembly that relates to of embodiments of the present invention 2.For with Fig. 1 in the same part of the execution mode 1 that represents give same-sign, centered by different structures, carry out following explanation.
In Fig. 6, be with execution mode 1 difference of Fig. 1, Anneta module 1, except the 1st antenna 5a, the 2nd antenna 5b, also has the 3rd antenna 5c.And active circuit 4 has the 3rd variable matching circuit 6c, the 3rd amplifier 7c being connected with the outlet side of the 3rd variable matching circuit 6c, the 6th high pass filter 11c and the 6th low pass filter 13c being connected with the 3rd antenna 5c.A side of the 6th high pass filter 11c is connected with the 3rd amplifier 7c, and the opposing party is connected with the 3rd transmission line 14c.A side of the 6th low pass filter 13c is connected with the 3rd transmission line 14c, and the opposing party is connected with control signal decision circuit 8.
And electronic unit 9 has the 5th high pass filter 10c, 3RF circuit 15c, the 5th low pass filter 12c and the 2nd control signal circuit for generating 17b being connected with the 3rd transmission line 14c.A side of 3RF circuit 15c is connected with the 5th high pass filter 10c, and the opposing party is connected with demodulator circuit 18.A side of the 5th low pass filter 12c is connected with the 3rd transmission line 14c, and the opposing party is connected with the 2nd control signal circuit for generating 17b.
The antenna assembly of the execution mode 2 shown in Fig. 6 has formed the diversity reception mode antenna assembly with 3 branches (branch).Compare with the antenna assembly of execution mode 1, the large difference of the antenna assembly 2 shown in Fig. 6 in action is the control method of active circuit 4.
The antenna assembly 2 of execution mode 2 can utilize the 1st control signal being supplied to via the 2nd transmission line 14b from the 1st control signal circuit for generating 17a and these 2 control signals of the 2nd control signal that are supplied to via the 3rd transmission line 14c from the 2nd control signal circuit for generating 17b.Therefore, such as utilize based on the poor of these 2 control signals and, long-pending etc. and the value that derives is as control signal, can highly control active circuit 4.
Particularly, the 2nd transmission line 14b and these 2 circuits of the 3rd transmission line 14c can be utilized as feed line, with balanced mode (differential mode), the 1st control signal and the 2nd control signal be supplied with to these circuits.Thus, can make the current potential of 2 control signals expand to minus side.In addition, if the 2nd transmission line 14b and the 3rd transmission line 14c are approached to configuration, can prevent the situation that control signal is radiated as electromagnetic wave from these circuits.
Utilize Fig. 7, the appearance of above-mentioned concrete action is described.
Fig. 7 is the block diagram of the control signal decision circuit of the antenna assembly that relates to of execution mode 2.In Fig. 7, control signal decision circuit 8 at least has: the control circuit 21 that is transfused to the balanced-to-unbalanced transformer 20 of the 1st control signal and the 2nd control signal and is transfused to the output signal of balanced-to-unbalanced transformer 20.
The control signal of controlling active circuit 4 for the electronic unit 9 by Fig. 6, the signal of deriving by the difference based on the 1st control signal and the 2nd control signal is supplied with.In the situation that the difference based on the 1st control signal and the 2nd control signal transmits control signal, if make the single spin-echo of the 1st control signal and the 2nd control signal, can efficiency best control signal be transmitted to control signal decision circuit 8.This transmission state is called to balanced mode (differential mode).
The control signal of transmitting between the 1st transmission line 14a and the 2nd transmission line 14b with balanced mode and coming, be balanced-balun 20 converts the unbalance signal with positive negative potential to, and supplies with to control circuit 21.Thus, can use the control signal also with the current potential of negative direction except positive direction, make various control of active circuit 4 become possibility.And, because the 1st transmission line 14a and the 2nd transmission line 14b are transmitted the control signal of opposite phase, so by the 1st transmission line 14a and the approaching configuration of the 2nd transmission line 14b in the situation that, can suppress the radiation from the control signal of these transmission lines.
Also can, by usining the control signal of balanced mode transmission as sine wave, make frequency direction, phase directional, amplitude direction there is signal.Thus, the frequency band that can make control signal occupy narrows down, and not only can realize the communicator 3 that receiving feature is high, and can diversely control active circuit 4.
(execution mode 3)
Below, utilize Fig. 8 to describe embodiments of the present invention 3.Fig. 8 is the block diagram of the 1st antenna element that relates to of execution mode 3.Execution mode 3 shown in Fig. 8 be by the 1st antenna element 22 realized execution mode 1 or execution mode 2 form the Anneta module 1 of the 1st antenna 5a and the 2nd antenna 5b time embodiment.
In Fig. 8, the 1st antenna element 22 of present embodiment 3 has: at least possess the antenna element 27 of the 1st terminal the 23, the 2nd terminal the 24, the 3rd terminal 25 and the 4th terminal 26 these 4 terminals (in Fig. 8, the shape of antenna element 27 is not specific, with the state of black box (black box), records).The 1st terminal 23 of antenna element 27 is connected with a side of the 1st circuit 28, the 2nd terminal 24 of antenna element 27 is connected with a side of the 2nd circuit 29, the 3rd terminal 25 of antenna element 27 is connected with a side of the 3rd circuit 30, and the 4th terminal 26 of antenna element 27 is connected with a side of the 4th circuit 31.The opposing party of the opposing party of the 1st circuit 28 and the 2nd circuit 29 is connected at the 1st intersection point 32 places, and the opposing party of the opposing party of the 3rd circuit 30 and the 4th circuit 31 is connected at the 2nd intersection point 33 places.
And the 1st antenna element 22 of present embodiment 3 has: be connected to the 1st circuit 28 the 1st match circuit 34 midway and the 1st phaser 38, be connected to the 2nd match circuit 35 midway and the 2nd phaser 39 of the 2nd circuit 29.The 1st antenna element 22 have be equally connected to the 3rd circuit 30 the 3rd match circuit 36 midway and the 3rd phaser 40, be connected to the 4th match circuit 37 midway and the 4th phaser 41 of the 4th circuit 31.And, at the 1st intersection point the 32, the 2nd intersection point 33, connected the active circuit 4 of Fig. 1.As a concrete example, at the 1st intersection point 32, be connected with the 1st variable matching circuit 6a of Fig. 1, at the 2nd intersection point 33, be connected with the 2nd variable matching circuit 6b of Fig. 1.
Here, in the situation that having inputted signal from the 1st intersection point 32, the phase difference of the phase place of the phase place of the signal that the 2nd intersection point 33 sides of the 3rd circuit 30 occur, the signal that occurs with the 2nd intersection point 33 sides of the 4th circuit 31 is roughly 180 degree ± 360 degree * n (n is more than 0 integer).In addition, in the situation that having inputted signal from the 2nd intersection point 33, the phase difference of the phase place of the phase place of the signal that the 1st circuit 28 occurs in the 1st intersection point 32 sides, the signal that occurs in the 1st intersection point 32 sides with the 2nd circuit 29 is also roughly 180 degree ± 360 degree * n (n is more than 0 integer).
According to the mode that meets above-mentioned condition, designed the line length of the 1st circuit the 28, the 2nd circuit the 29, the 3rd circuit 30 and the 4th circuit 31, with the 1st match circuit the 34, the 2nd match circuit the 35, the 3rd match circuit 36 and the 4th match circuit 37, and the 1st phaser the 38, the 2nd phaser the 39, the 3rd phaser 40 and the 4th phaser 41.
For example, from the 1st variable matching circuit 6a, be input to the signal of the 1st intersection point 32, from the 2nd intersection point 33, to the 2nd variable matching circuit 6b side, propagate hardly.On the contrary, for be input to the signal of the 2nd intersection point 33 from the 2nd variable matching circuit 6b, the phase difference of the phase place of the phase place of the signal occurring in the 1st intersection point 32 sides due to the 1st circuit 28, the signal that occurs in the 1st intersection point 32 sides with the 2nd circuit 29 is roughly 180 degree ± 360 degree * n (n is more than 0 integer), so almost also can not propagate to the 1st variable matching circuit 6b side from the 1st intersection point 32.Therefore, can transmitting signal between the 1st variable matching circuit 6a and the 2nd variable matching circuit 6b, can between the 1st variable matching circuit 6a and the 2nd variable matching circuit 6b, guarantee insulation.Thus, the 1RF circuit 15a of Fig. 1 and 2RF circuit 15b can carry out the exchange of signal independently of each other by 1 antenna element 27.That is, the 1RF circuit 15a of Fig. 1 and 2RF circuit 15b can not be subject to the restriction of time, frequency, carry out independently of each other the exchange of signal.Thus, can realize 2 Anneta modules that the coefficient correlation between antenna is low, small-sized.
Above-mentioned " inputs the situation of signal from the 1st intersection point 32, the phase place of the signal that the 2nd intersection point 33 sides of the 3rd circuit 30 occur, the phase difference of the phase place of the signal occurring with the 2nd intersection point 33 sides of the 4th circuit 31 is roughly 180 degree ± 360 degree * n (n is more than 0 integer) " this record, and " in the situation that having inputted signal from the 2nd intersection point 33, the phase place of the signal that the 1st intersection point 32 sides of the 1st circuit 28 occur, the phase difference of the phase place of the signal occurring with the 1st intersection point 32 sides of the 2nd circuit 29 is also roughly 180 degree ± 360 degree * n (n is more than 0 integer) " record in the scope of " roughly ", the phase difference that refers to above-mentioned 2 signals that compare is more than 135 degree ± 360 degree * n, the scope of 225 degree ± 360 degree * n following (n is more than 0 integer).Equally, comprise the scope of technical scheme, in the application's record, the record of the phase place of regulation (or phase difference) corresponding " roughly " means that the phase place (or phase difference) with respect to regulation has-45 degree to the width of+45 degree.Its reason is, if the phase place of the regulation in the application (or phase difference) is-45 degree, arrives in the scopes of+45 degree, can guarantee that the insulation between the 1st intersection point 32 and the 2nd intersection point 33 is value more than 10dB.
In addition, also can be according in the situation that having inputted signal from the 1st intersection point 32, the roughly the same mode of absolute value of the amplitude of the absolute value of the amplitude of the signal that the 2nd intersection point 33 sides of the 3rd circuit 30 occur, the signal that occurs with the 2nd intersection point 33 sides of the 4th circuit 31, design the line length of the 1st circuit the 28, the 2nd circuit the 29, the 3rd circuit 30 and the 4th circuit 31, with the 1st match circuit the 34, the 2nd match circuit the 35, the 3rd match circuit 36 and the 4th match circuit 37, and the 1st phaser the 38, the 2nd phaser the 39, the 3rd phaser 40 and the 4th phaser 41.And, equally, also can be according in the situation that having inputted signal from the 2nd intersection point 33, the roughly the same mode of absolute value of the amplitude of the absolute value of the amplitude of the signal that the 1st intersection point 32 sides of the 1st circuit 28 occur, the signal that occurs with the 1st intersection point 32 sides of the 2nd circuit 29, design the line length of the 1st circuit the 28, the 2nd circuit the 29, the 3rd circuit 30 and the 4th circuit 41, with the 1st match circuit the 34, the 2nd match circuit the 35, the 3rd match circuit 36 and the 4th match circuit 37, and the 1st phaser the 38, the 2nd phaser the 39, the 3rd phaser 40 and the 4th phaser 41.Thus, can obtain higher this favourable effect of the insulation that can make between the 1st variable matching circuit 6a and the 2nd variable matching circuit 6b.
In addition, the scope of " roughly " in above-mentioned " absolute value of the amplitude of the absolute value of the amplitude of the signal that the 2nd intersection point 33 sides of the 3rd circuit 30 occur, the signal that occurs with the 2nd intersection point 33 sides of the 4th circuit 31 is roughly the same " this record and " absolute value of the amplitude of the absolute value of the amplitude of the signal that the 1st intersection point 32 sides of the 1st circuit 28 occur, the signal that occurs with the 1st intersection point 32 sides of the 2nd circuit 29 is roughly the same " this record, the amplitude ratio that refers to above-mentioned 2 signals that compare is the scope below 10dB.Its reason is, if be that mode below 10dB designs the 1st antenna element 22 according to the amplitude ratio of above-mentioned 2 signals that compare, can guarantee that the insulation between the 1st intersection point 32 and the 2nd intersection point 33 is value more than 10dB.Equally, below in this application, during the record of the absolute value " roughly the same " of the amplitude of 2 signals that are compared when existence, the scope of " roughly the same " refers to that the amplitude ratio of 2 signals that compare is the scope below 10dB.
Here, " amplitude " means the absolute value without sign symbol.
And, also can be equal according to the absolute value the 1st terminal 23 and the 2nd terminal 24 having been inputted to same phase and amplitude signal time, the difference of the phase place of the phase place of the signal that the 1st intersection point 32 sides of the 1st circuit 28 occur, the signal that occurs with the 1st intersection point 32 sides of the 2nd circuit 29 is roughly the mode of 180 degree ± 360 degree * n (n is more than 0 integer), designs line length, the 1st match circuit the 34, the 2nd match circuit 35 and the 1st phaser the 38, the 2nd phaser 39 of the 1st circuit 28, the 2nd circuit 29.
Here, for example, when being transfused to the signal of common mode between the 1st terminal 23 and the 2nd terminal 24, between the 1st terminal 23 and the 2nd terminal 24, the phase difference of the electric current of the signal of common mode is zero.Therefore, when the equal signal of the absolute value of the 1st terminal 23 and the 2nd terminal 24 having been inputted to same phase and amplitude, the difference of the phase place of the phase place of the signal that the 1st intersection point 32 sides of the 1st circuit 28 occur, the signal that occurs with the 1st intersection point 32 sides of the 2nd circuit 29 is roughly 180 degree ± 360 degree * n (n is more than 0 integer), at the 1st intersection point 32 places, the electric current of the signal of common mode is cancelled, and propagates hardly the signal of common mode from the 1st intersection point 32 to the 1st variable matching circuit 6a side.
On the contrary, for example, when being transfused to the signal of differential mode between the 1st terminal 23 and the 2nd terminal 24, between the 1st terminal 23 and the 2nd terminal 24, the phase difference of the electric current of the signal of differential mode is ± 180 degree.Therefore, when the 1st terminal 23 and the 2nd terminal 24 having been inputted to phase difference and be the equal signal of the absolute value of 180 degree and amplitude, the difference of the phase place of the phase place of the signal that the 1st intersection point 32 sides of the 1st circuit 28 occur, the signal that occurs with the 1st intersection point 32 sides of the 2nd circuit 29 is roughly 0 degree ± 360 degree * n (n is more than 0 integer), at the 1st intersection point 32 places, the electric current of the signal of differential mode is added, and the signal of differential mode is roughly propagated to the 1st variable matching circuit 6a side from the 1st intersection point 32.
Like this, during according to the equal signal of the absolute value the 1st terminal 23 and the 2nd terminal 24 having been inputted to same phase, amplitude, the mode that the difference of the phase place of the phase place of the signal that the 1st intersection point 32 sides of the 1st circuit 28 occur, the signal that occurs with the 1st intersection point 32 sides of the 2nd circuit 29 is roughly 180 degree ± 360 degree * n (n is more than 0 integer) designs.Thus, can only be chosen in the signal of the differential mode producing between the 1st terminal 23 and the 2nd terminal 24, it is propagated to the 1st variable matching circuit 6a.
And, when the 1st terminal 23 and the 2nd terminal 24 having been inputted to the equal signal of the absolute value of same phase, amplitude, in the situation that considered the phase place of the signal that the 1st intersection point 32 sides of the 1st circuit 28 occur, the difference of the phase place of the signal that occurs with the 1st intersection point 32 sides of the 2nd circuit 29 is roughly the condition of 180 degree ± 360 degree * n (n is more than 0 integer), from the 1st terminal 23 till the phase changing capacity of the 2nd intersection point 33, with from the 2nd terminal 24 till the difference of the phase changing capacity of the 2nd intersection point 33 is zero.That is, the electric current of the signal of the common mode producing between the 1st terminal 23 and the 2nd terminal 24 is added with homophase at the 2nd intersection point 33, nearly all from the 2nd intersection point 33, to the 2nd variable matching circuit 6b side, propagates.On the contrary, the electric current of the signal of the differential mode producing between the 1st terminal 23 and the 2nd terminal 24 is added and offsets with anti-phase at the 2nd intersection point 33, propagates hardly from the 2nd intersection point 33 to the 2nd variable matching circuit 6b side.
Therefore, the signal of the differential mode producing between the 1st terminal 23 and the 2nd terminal 24 is almost only propagated to the 1st variable matching circuit 6a side, and the signal of the common mode producing between the 1st terminal 23 and the 2nd terminal 24 is almost only propagated to the 2nd variable matching circuit 6b side.That is, the 1st antenna element 22 of present embodiment can take out respectively via antenna element 27 signal of described 2 patterns that produce between the 1st terminal 23 and the 2nd terminal 24.
In addition, in this situation, also can be equal according to the absolute value the 1st terminal 23 and the 2nd terminal 24 having been inputted to same phase, amplitude signal time, the roughly the same mode of absolute value of the amplitude of the absolute value of the amplitude of the signal that the 1st intersection point 32 sides of the 1st circuit 28 occur, the signal that occurs with the 1st intersection point 32 sides of the 2nd circuit 29, design the line length of the 1st circuit 28, the 2nd circuit 29, the 1st match circuit the 34, the 2nd match circuit 35, and the 1st phaser the 38, the 2nd phaser 39.
Thus, the electric current of the signal of the common mode occurring at the 1st intersection point 32 can be offset more accurately, the ratio of the signal component of the relative common mode of differential mode of propagating to the 1st variable matching circuit 6a side from the 1st intersection point 32 can be improved.
In addition, equally also can be according to when the 1st terminal 23 and the 2nd terminal 24 having been inputted to phase difference and be the equal signal of the absolute value of 180 degree and amplitude, the roughly the same mode of absolute value of the amplitude of the absolute value of the amplitude of the signal that the 2nd intersection point 33 sides of the 3rd circuit 30 occur, the signal that occurs with the 2nd intersection point 33 sides of the 4th circuit 31, design the line length of the 3rd circuit 30, the 4th circuit 31, the 3rd match circuit the 36, the 4th match circuit 37 and the 3rd phaser the 40, the 4th phaser 41.Thus, the electric current of the signal of the differential mode occurring at the 2nd intersection point 33 can be offset more accurately, the ratio of the signal component of the relative differential mode of common mode of propagating to the 2nd variable matching circuit 6b side from the 2nd intersection point 33 can be improved.
In addition, also can be according to from the 1st terminal 23 till the phase changing capacity of the 1st intersection point 32 is roughly 90 degree ± 360 degree * n (n is more than 0 integer), and the phase changing capacity from the 2nd terminal 24 to the 1st intersection point 32 is roughly the mode of-90 degree ± 360 degree * n (n is more than 0 integer), design the line length of the 1st circuit 28, the 2nd circuit 29, with the 1st match circuit the 34, the 2nd match circuit 35, and the 1st phaser the 38, the 2nd phaser 39.
For example, when having produced the signal of common mode between the 1st terminal 23 and the 2nd terminal 24, because the phase changing capacity from the 1st terminal 23 to the 1st intersection point 32 is roughly 90 degree ± 360 degree * n (n is more than 0 integer), and the phase changing capacity from the 2nd terminal 24 to the 1st intersection point 32 is roughly-90 degree ± 360 degree * n (n is more than 0 integer), so be cancelled at the signal of the 1st intersection point 32 common modes.That is,, for the signal of common mode, the 1st intersection point 32 becomes the place that imagination is grounded.The 1st intersection point 32 being grounded from imagination is till the phase changing capacity of the 1st terminal 23 and the 2nd terminal 24 is respectively 90 degree ,-90 degree, and the input impedance while observing respectively the 1st intersection point 32 side from the 1st terminal 23 and the 2nd terminal 24 becomes infinity.Therefore, the signal of the common mode producing between the 1st terminal 23 and the 2nd terminal 24 is propagated to the 1st intersection point 32 sides hardly, nearly all to the 2nd intersection point 33 sides, propagates.Thus, the ratio of signal of the relative differential mode of signal of the common mode of propagating to the 2nd variable matching circuit 6b can be further improved, and the ratio of signal of the relative common mode of signal of the differential mode of propagating to the 1st variable matching circuit 6a can be further improved.
And, under this condition, also can be according to when the 1st terminal 23 and the 2nd terminal 24 having been inputted to the equal signal of the absolute value of same phase and amplitude, the roughly the same mode of absolute value of the amplitude of the absolute value of the amplitude of the signal that the 1st intersection point 32 sides of the 1st circuit 28 occur, the signal that occurs with the 1st intersection point 32 sides of the 2nd circuit 29, design the line length of the 1st circuit 28, the 2nd circuit 29, the 1st match circuit the 34, the 2nd match circuit 35, and the 1st phaser the 38, the 2nd phaser 39.
Thus, the electric current of the signal of the common mode occurring at the 1st intersection point 32 can be offset more accurately, the ratio of signal component of the relative common mode of differential mode of the signal of propagating to the 1st variable matching circuit 6a side from the 1st intersection point 32 can be improved.Can realize can be by the low signal of common mode of the coefficient correlation producing in antenna element 27 and the separated diversity antenna of the signal high precision of differential mode.
In addition, also can be roughly according to the phase changing capacity from the 1st terminal 23 to the 2nd intersection point 33+90 degree ± 180 degree * n (n is more than 0 integer), and the mode of be roughly+90 degree ± 180 degree * n (n is more than 0 integer) of the phase changing capacity from the 2nd terminal 24 to the 2nd intersection point 33, design the line length of the 3rd circuit 30, the 4th circuit 31, the 3rd match circuit the 36, the 4th match circuit 37 and the 3rd phaser the 40, the 4th phaser 41.
Thus, when having produced the signal of differential mode between the 1st terminal 23 and the 2nd terminal 24, due to the phase changing capacity from the 1st terminal 23 to the 2nd intersection point 33, with phase changing capacity from the 2nd terminal 24 to the 2nd intersection point 33 be same amount, so be cancelled at the signal of the 2nd intersection point 33 differential modes.
That is,, for the signal of differential mode, the 2nd intersection point 33 is places that imagination is grounded.The 2nd intersection point 33 being grounded from imagination is all 90 degree to the phase changing capacity of the 1st terminal 23 and the 2nd terminal 24, and the input impedance while observing respectively the 2nd intersection point 33 side from the 1st terminal 23 and the 2nd terminal 24 becomes infinity.
Therefore, the signal of the differential mode producing between the 1st terminal 23 and the 2nd terminal 24 is propagated to the 2nd intersection point 33 sides hardly, nearly all to the 1st intersection point 33 sides, propagates.Thus, the signal volume ratio of the relative common mode of signal of the differential mode of propagating to the 1st variable matching circuit 6a can be further improved, and then the ratio of signal of the relative differential mode of signal of the common mode of propagating to the 2nd variable matching circuit 6b can be improved.
And, under this condition, also can be according to when having inputted the equal signal of the absolute value of amplitude to the 1st terminal 23 and the 2nd terminal 24 with phase difference 180 degree, the roughly the same mode of absolute value of the amplitude of the absolute value of the amplitude of the signal that the 2nd intersection point 33 sides of the 3rd circuit 30 occur, the signal that occurs with the 2nd intersection point 33 sides of the 4th circuit 31, designs line length, the 3rd match circuit the 36, the 4th match circuit 37 and the 3rd phaser the 40, the 4th phaser 41 of the 3rd circuit 30, the 4th circuit 31.
The electric current of the signal of the common mode occurring at the 1st intersection point 32 can be offset more accurately, the ratio of signal component of the relative common mode of differential mode of the signal of propagating to the 1st variable matching circuit 6a side from the 1st intersection point 32 can be improved.
Thus, can realize can be by the low signal of common mode of the coefficient correlation producing in antenna element 27 and the separated diversity antenna of the signal high precision of differential mode.
In addition, also can be roughly according to the phase changing capacity from the 3rd terminal 25 to the 2nd intersection point 33+90 degree ± 180 degree * n (n is more than 0 integer), and the phase changing capacity from the 4th terminal 26 to the 2nd intersection point 33 is roughly+and the mode of 90 degree ± 180 degree * n (n is more than 0 integer), designs line length, the 3rd match circuit the 36, the 4th match circuit 37 and the 3rd phaser the 40, the 4th phaser 41 of the 3rd circuit 30, the 4th circuit 31.
Thus, for example, while having produced the signal of differential mode between the 3rd terminal 25 and the 4th terminal 26, due to the phase changing capacity from the 3rd terminal 25 to the 2nd intersection point 33, with phase changing capacity from the 4th terminal 26 to the 2nd intersection point 33 be same amount, so be cancelled at the signal of the 2nd intersection point 33 differential modes.That is,, for the signal of differential mode, the 2nd intersection point 33 becomes the place that imagination is grounded.The 2nd intersection point 33 being grounded from imagination is all 90 degree to the phase changing capacity of the 3rd terminal 25 and the 4th terminal 26, and the input impedance while observing respectively the 2nd intersection point 33 side from the 3rd terminal 25 and the 4th terminal 26 becomes infinity.
Therefore, the signal of the differential mode producing between the 3rd terminal 25 and the 4th terminal 26 is propagated to the 2nd intersection point 33 sides hardly, nearly all to the 1st intersection point 32 sides, propagates.Thus, the ratio of signal of the relative common mode of signal of the differential mode of propagating to the 1st variable matching circuit 6a can be further improved, and the ratio of signal of the relative differential mode of signal of the common mode of propagating to the 2nd variable matching circuit 6b can be further improved.
And, under this condition, also can be according to when having inputted phase difference to the 3rd terminal 25 and the 4th terminal 26 and be the equal signal of the absolute value of 180 degree and amplitude, the roughly the same mode of absolute value of the amplitude of the absolute value of the amplitude of the signal that the 2nd intersection point 33 sides of the 3rd circuit 30 occur, the signal that occurs with the 2nd intersection point 33 sides of the 4th circuit 31, design the line length of the 3rd circuit 30, the 4th circuit 31, the 3rd match circuit the 36, the 4th match circuit 37 and the 3rd phaser the 40, the 4th phaser 41.The electric current of the signal of the differential mode occurring at the 2nd intersection point 33 can be offset more accurately, the ratio of signal component of the relative differential mode of common mode of the signal of propagating to the 2nd variable matching circuit 6b side from the 2nd intersection point 33 can be improved.Thus, can the low signal of common mode and the signal high precision of differential mode of the coefficient correlation producing in antenna element 27 is separated, can realize the diversity antenna that can obtain 2 signals that coefficient correlation is low.
In addition, in Fig. 8, can adopt the formation of at least 1 removal in the 1st match circuit the 34, the 2nd match circuit the 35, the 3rd match circuit the 36, the 4th match circuit the 37, the 1st phaser the 38, the 2nd phaser the 39, the 3rd phaser the 40, the 4th phaser 41.Thus, not only can reduce the loss in the 1st circuit the 28, the 2nd circuit the 29, the 3rd circuit 30 and the 4th circuit 31, and can reduce components number, thereby can realize miniaturization, lightweight.
Wherein, the 1st match circuit the 34, the 2nd match circuit the 35, the 3rd match circuit the 36, the 4th match circuit the 37, the 1st phaser the 38, the 2nd phaser the 39, the 3rd phaser the 40, the 4th phaser 41 utilizes the circuit of reactance component to design substantially.But, also can utilize the circuit that contains resistive element, amplifying circuit etc. to design.Thus, high insulation characterisitic between the 1st variable matching circuit 6a and the 2nd variable matching circuit 6b not only can be realized, but also the Transceiver Features of communicator can be improved.
(execution mode 4)
Below, utilize Fig. 9 to describe embodiments of the present invention 4.Fig. 9 is the block diagram of the 3rd antenna element that relates to of execution mode 4.Execution mode 4 shown in Fig. 9 is the embodiment while utilizing the 3rd antenna element 42 of Fig. 9 to realize formation the 1st antenna 5a of execution mode 1 or execution mode 2 and the Anneta module 1 of the 2nd antenna 5b.Wherein, for only recording same-sign with the same formation of execution mode 3, the different formation of take is carried out following explanation as center.
In Fig. 9, the 3rd antenna element 42 of present embodiment 4 possesses the antenna element 27 (in Fig. 9, the shape of antenna element 27 is not specific, records with the state of black box) at least with 3 terminals.The 1st terminal 23 of antenna element 27 is connected with a side of the 1st circuit 28, and the 2nd terminal 24 of antenna element 27 is connected with a side of the 2nd circuit 29, and the 3rd terminal 25 of antenna element 27 is connected with a side of the 3rd circuit 30.The opposing party of the opposing party of the 1st circuit 28 and the 2nd circuit 29 is connected with the 1st intersection point 32, and the opposing party of the 3rd circuit 30 is connected with the 2nd intersection point 33.
And, can be according in the situation that having inputted signal from the 2nd intersection point 33, the phase difference of the phase place of the phase place of the signal that the 1st intersection point 32 sides of the 1st circuit 28 occur, the signal that occurs with the 1st intersection point 32 sides of the 2nd circuit 29 is roughly the mode of 180 degree ± 360 degree * n (n is more than 0 integer), designs line length, the 1st match circuit the 34, the 2nd match circuit 35 and the 1st phaser the 38, the 2nd phaser 39 of the 1st circuit the 28, the 2nd circuit 29 and the 3rd circuit 30.Thus, for example, because the signal sending from the 1st variable matching circuit 6a is cancelled at the opposing party's side and the 3rd terminal 25 of the 3rd circuit 30, so propagate to the 2nd variable matching circuit 6b side hardly.
On the contrary, for the signal sending from the 2nd variable matching circuit 6b, the phase difference of the phase place of the phase place of the signal occurring due to the 1st intersection point 32 sides of the 1st circuit 28, the signal that occurs with the 1st intersection point 32 sides of the 2nd circuit 29 is roughly 180 degree ± 360 degree * n (n is more than 0 integer), so also propagate to the 1st variable matching circuit 6a side from the 1st intersection point 32 hardly.Therefore, transmitting signal not between the 1st variable matching circuit 6a and the 2nd variable matching circuit 6b can be guaranteed insulation between the 1st variable matching circuit 6a and the 2nd variable matching circuit 6b.Thus, the 1RF circuit 15a of Fig. 1 and 2RF circuit 15b can carry out the exchange of signal independently of each other via antenna element 27.That is, 1RF circuit 15a and 2RF circuit 15b can not be subject to the system of time, frequency to limit the separate exchange of carrying out signal.
And, the 3rd antenna element 42 of present embodiment 4 owing to can reducing the quantity of circuit that the 3rd terminal 25 is connected with the 2nd variable matching circuit 6b, the quantity of the quantity of match circuit, phaser, so can realize miniaturization, lightweight.
In addition, in the time of can having inputted signal according to the opposing party when from the 3rd circuit 30, the roughly the same mode of absolute value of the amplitude of the absolute value of the amplitude of the signal that the 1st intersection point 32 sides of the 1st circuit 28 occur, the signal that occurs with the 1st intersection point 32 sides of the 2nd circuit 29, designs line length, the 1st match circuit 34 and the 2nd match circuit 35 and the 1st phaser 38 and the 2nd phaser 39 of the 1st circuit 28 and the 2nd circuit 29.Thus, can obtain higher this favourable effect of the insulation that can make between the 1st variable matching circuit 6a and the 2nd variable matching circuit 6b.
In addition, can be according to when having inputted the equal signal of the absolute value of same-phase and amplitude to the 1st terminal 23 and the 2nd terminal 24, the difference of the phase place of the phase place of the signal that the 1st intersection point 32 sides of the 1st circuit 28 occur, the signal that occurs with the 1st intersection point 32 sides of the 2nd circuit 29 is roughly the mode of 180 degree ± 360 degree * n (n is more than 0 integer), designs line length, the 1st match circuit the 34, the 2nd match circuit 35 and the 1st phaser the 38, the 2nd phaser 39 of the 1st circuit 28, the 2nd circuit 29.
Here, for example, when being transfused to the signal of common mode between the 1st terminal 23 and the 2nd terminal 24, between the 1st terminal 23 and the 2nd terminal 24, the phase difference of the electric current of the signal of common mode is zero.Therefore, when the 1st terminal 23 and the 2nd terminal 24 having been inputted to the equal signal of the absolute value of same-phase and amplitude, the difference of the phase place of the phase place of the signal that the 1st intersection point 32 sides of the 1st circuit 28 occur, the signal that occurs with the 1st intersection point 32 sides of the 2nd circuit 29 is roughly 180 degree ± 360 degree * n (n is more than 0 integer).At the 1st intersection point 32 places, the electric current of the signal of common mode is cancelled, and propagates hardly the signal of common mode from the 1st intersection point 32 to the 1st variable matching circuit 6a side.On the contrary, for example, when being transfused to the signal of differential mode between the 1st terminal 23 and the 2nd terminal 24, between the 1st terminal 23 and the 2nd terminal 24, the phase difference variable of the electric current of the signal of differential mode is ± 180 degree.Therefore, when the 1st terminal 23 and the 2nd terminal 24 having been inputted to the equal signal of absolute value that phase difference is ± 180 degree, amplitude, the difference of the phase place of the phase place of the signal that the 1st intersection point 32 sides of the 1st circuit 28 occur, the signal that occurs with the 1st intersection point 32 sides of the 2nd circuit 29 is roughly 0 degree ± 360 degree * n (n is more than 0 integer).At the 1st intersection point 32 places, the electric current of the signal of differential mode is added, and the signal of differential mode is nearly all propagated to the 1st variable matching circuit 6a side from the 1st intersection point 32.
Like this, when the 1st terminal 23 and the 2nd terminal 24 having been inputted to the equal signal of the absolute value of same phase, amplitude, the difference of the phase place of the signal that be designed to the phase place of the signal that the 1st intersection point 32 sides of the 1st circuit 28 occur, occurs with the 1st intersection point 32 side of the 2nd circuit 29 is roughly 180 degree ± 360 degree * n (n is more than 0 integer).Thus, can only select the signal of the differential mode of generation between the 1st terminal 23 and the 2nd terminal 24, it is propagated to the 1st variable matching circuit 6a.
And, when having inputted the equal signal of the absolute value of same phase and amplitude to the 1st terminal 23 and the 2nd terminal 24, the difference of the phase place of the signal that consider the phase place of the signal that the 1st intersection point 32 sides of the 1st circuit 28 occur, occurs with the 1st intersection point 32 sides of the 2nd circuit 29 is roughly the condition of 180 degree ± 360 degree * n (n is more than 0 integer).Phase changing capacity from the 1st terminal 23 to the 2nd intersection point 33, with difference vanishing from the 2nd terminal 24 to the phase changing capacity of the 2nd intersection point 33.That is, the electric current of the signal of the common mode producing between the 1st terminal 23 and the 2nd terminal 24 is added with homophase at the 3rd terminal 25, nearly all to the 2nd variable matching circuit 6b side, propagates.On the contrary, the electric current of the signal of the differential mode producing between the 1st terminal 23 and the 2nd terminal 24 is added and is cancelled with anti-phase at the 3rd terminal 25, propagates hardly to the 2nd variable matching circuit 6b side.
Therefore, the signal of the differential mode producing between the 1st terminal 23 and the 2nd terminal 24 is nearly all only propagated to the 1st variable matching circuit 6a side, and the signal of the common mode producing between the 1st terminal 23 and the 2nd terminal 24 is nearly all only propagated to the 2nd variable matching circuit 6b side.That is, the 3rd antenna element 42 of present embodiment can take out respectively the signal of described 2 patterns that produce between the 1st terminal 23 and the 2nd terminal 24.
In addition, in this situation, also can be according to when having inputted the equal signal of the absolute value of same phase and amplitude to the 1st terminal 23 and the 2nd terminal 24, the roughly the same mode of absolute value of the amplitude of the absolute value of the amplitude of the signal that the 1st intersection point 32 sides of the 1st circuit 28 occur, the signal that occurs with the 1st intersection point 32 sides of the 2nd circuit 29, design the line length of the 1st circuit 28, the 2nd circuit 29, the 1st match circuit the 34, the 2nd match circuit 35 and the 1st phaser the 38, the 2nd phaser 39.Precision is offset the electric current of the signal of the common mode occurring at the 1st intersection point 32 well more, can improve the ratio of signal of the relative common mode of signal of the differential mode of the signal of propagating to the 1st variable matching circuit 6a side from the 1st intersection point 32.Thus, can the low signal of common mode and the signal accuracy of differential mode of the coefficient correlation producing in antenna element 27 is separated well, can realize the compact diversity antenna that can obtain 2 signals that coefficient correlation is low.
In addition, also can be roughly according to the phase changing capacity from the 1st terminal 23 to the 1st intersection point 32 90 degree ± 360 degree * n (n is more than 0 integer), and the phase changing capacity from the 2nd terminal 24 to the 1st intersection point 32 is roughly the mode of-90 degree ± 360 degree * n (n is more than 0 integer), design the line length of the 1st circuit 28, the 2nd circuit 29, the 1st match circuit the 34, the 2nd match circuit 35 and the 1st phaser the 38, the 2nd phaser 39.
For example, when having produced the signal of common mode between the 1st terminal 23 and the 2nd terminal 24, phase changing capacity from the 1st terminal 23 to the 1st intersection point 32 is roughly 90 degree ± 360 degree * n (n is more than 0 integer), and the phase changing capacity from the 2nd terminal 23 to the 1st intersection point 32 is roughly-90 degree ± 360 degree * n (n is more than 0 integer).At the 1st intersection point 32, the signal of common mode is cancelled.That is,, for the signal of common mode, the 1st intersection point 32 becomes the place that imagination is grounded.The 1st intersection point 32 being grounded from imagination is respectively 90 degree ,-90 degree to the phase changing capacity of the 1st terminal 23 and the 2nd terminal 24, and the input impedance while observing respectively the 1st intersection point 32 side from the 1st terminal 23 and the 2nd terminal 24 becomes infinity.Therefore, the signal of the common mode producing between the 1st terminal 23 and the 2nd terminal 24 is propagated to the 1st intersection point 32 sides hardly, and nearly all to the 2nd intersection point 33 sides, propagates.Thus, can further improve the ratio of signal of the relative differential mode of signal of the common mode of propagating to the 2nd variable matching circuit 6b, and, the ratio of signal of the relative common mode of signal of the differential mode of propagating to the 1st variable matching circuit 6a can be improved.
And, under this condition, also can be according to when having inputted the equal signal of the absolute value of same phase, amplitude to the 1st terminal 23 and the 2nd terminal 24, the roughly the same mode of absolute value of the amplitude of the absolute value of the amplitude of the signal that the 1st intersection point 32 sides of the 1st circuit 28 occur, the signal that occurs with the 1st intersection point 32 sides of the 2nd circuit 29, design the line length of the 1st circuit 28, the 2nd circuit 29, the 1st match circuit the 34, the 2nd match circuit 35 and the 1st phaser the 38, the 2nd phaser 39.Precision is offset the electric current of the signal of the common mode occurring at the 1st intersection point 32 well more, can improve the ratio of signal of the relative common mode of signal of the differential mode of the signal of propagating to the 1st variable matching circuit 6a side from the 1st intersection point 32.Thus, can the low signal of common mode and the signal accuracy of differential mode of the coefficient correlation producing in antenna element 27 is separated well, can realize the diversity antenna that can obtain 2 signals that coefficient correlation is low.
In addition, can adopt in Fig. 9 the formation of at least 1 removal in the 1st match circuit the 34, the 2nd match circuit the 35, the 1st phaser the 38, the 2nd phaser 39.Thus, not only can reduce the loss in the 1st circuit 28 and the 2nd circuit 29, and can reduce necessary components number, can realize miniaturization, lightweight.
In addition, the 1st match circuit the 34, the 2nd match circuit the 35, the 1st phaser 38 and the 2nd phaser 39 utilize the circuit of reactance component to design substantially, but also can utilize the circuit that contains resistive element, amplifying circuit etc. to design.Thus, not only can realize the high insulation characterisitic between the 1st variable matching circuit 6a and the 2nd variable matching circuit 6b, and can improve the Transceiver Features of electronic equipment.
(execution mode 5)
Below, utilize Figure 10 to describe embodiments of the present invention 5.Figure 10 is the block diagram of the 2nd antenna element that relates to of execution mode 5.Execution mode 5 shown in Figure 10 is the embodiment while utilizing the 2nd antenna element 43 of Figure 10 to realize formation the 1st antenna 5a of execution mode 1 or execution mode 2 and the Anneta module 1 of the 2nd antenna 5b.Wherein, for only recording same-sign with the same formation of execution mode 3, the different formation of take is carried out following explanation as center.
In Figure 10, the 2nd antenna element 43 of present embodiment 5 has the antenna element 27 (in Figure 10, the shape of antenna element 27 is not specific, records with the state of black box) that at least possesses the 1st terminal 23 and the 2nd terminal 24 these 2 terminals.The 1st terminal 23 of antenna element 27 is connected with a side of the 1st circuit 28, and the 1st terminal 23 is connected with a side of the 3rd circuit 30, and the 2nd terminal 24 is connected with a side of the 2nd circuit 29, and the 2nd terminal 24 is connected with a side of the 4th circuit 31.The opposing party of the opposing party of the 1st circuit 28 and the 2nd circuit 29 is connected with the 1st intersection point 32, and the opposing party of the opposing party of the 3rd circuit 30 and the 4th circuit 31 is connected with the 2nd intersection point 33.
And, in the situation that having inputted signal from the 1st intersection point 32, the phase place of the signal occurring according to the 2nd intersection point 33 sides of the 3rd circuit 30, the phase difference of the phase place of the signal occurring with the 2nd intersection point 33 sides of the 4th circuit 31 is roughly the mode of 180 degree ± 360 degree * n (n is more than 0 integer), designed the 1st circuit 28, the 2nd circuit 29, the line length of the 3rd circuit 30 and the 4th circuit 31, the 1st match circuit 34, the 2nd match circuit 35, the 3rd match circuit 36 and the 4th match circuit 37, with the 1st phaser 38, the 2nd phaser 39, the 3rd phaser 40 and the 4th phaser 41.
Thus, the phase difference of the phase place of the phase place of the signal occurring due to the 2nd intersection point 33 sides of the 3rd circuit 30, the signal that occurs with the 2nd intersection point 33 sides of the 4th circuit 31 is roughly 180 degree ± 360 degree * n (n is more than 0 integer), so for example propagate to the 2nd variable matching circuit 6b side from the 2nd intersection point 33 hardly from the signal of the 1st variable matching circuit 6a transmission.
On the contrary, for the signal sending from the 2nd variable matching circuit 6b, the phase difference of the phase place of the phase place of the signal occurring due to the 1st intersection point 32 sides of the 1st circuit 28, the signal that occurs with the 1st intersection point 32 sides of the 2nd circuit 29 is also roughly 180 degree ± 360 degree * n (n is more than 0 integer), so also roughly do not propagate to the 1st variable matching circuit 6a side from the 1st intersection point 32.
Therefore, can transmitting signal between the 1st variable matching circuit 6a and the 2nd variable matching circuit 6b, can between the 1st variable matching circuit 6a and the 2nd variable matching circuit 6b, guarantee insulation.Thus, the 1st variable matching circuit 6a and the 2nd variable matching circuit 6b can carry out the exchange of signal independently of each other via antenna element 27.That is, 1RF circuit 15a and 2RF circuit 15b do not need the time of carrying out, the selection of frequency, just can carry out independently of each other the exchange of signal.And, between the 2nd antenna element 43 of present embodiment 5 and antenna element 27, can only by 2 splicing ears, be connected,, the 2nd antenna element 42 of Fig. 9 is compared, can realize the simplification of structure with the 1st antenna element 22 of Fig. 8.
In addition, also can be according in the situation that having inputted signal from the 1st intersection point 32, the roughly the same mode of absolute value of the amplitude of the absolute value of the amplitude of the signal that the 2nd intersection point 33 sides of the 3rd circuit 30 occur, the signal that occurs with the 2nd intersection point 33 sides of the 4th circuit 31, design the line length of the 1st circuit the 28, the 2nd circuit the 29, the 3rd circuit 30 and the 4th circuit 31, the 1st match circuit the 34, the 2nd match circuit the 35, the 3rd match circuit 36 and the 4th match circuit 37, and the 1st phaser the 38, the 2nd phaser the 39, the 3rd phaser 40 and the 4th phaser 41.And, equally can be according in the situation that having inputted signal from the 2nd intersection point 33, the roughly the same mode of absolute value of the amplitude of the absolute value of the amplitude of the signal that the 1st intersection point 32 sides of the 1st circuit 28 occur, the signal that occurs with the 1st intersection point 32 sides of the 2nd circuit 29, design the line length of the 1st circuit the 28, the 2nd circuit the 29, the 3rd circuit 30 and the 4th circuit 31, the 1st match circuit the 34, the 2nd match circuit the 35, the 3rd match circuit 36 and the 4th match circuit 37, and the 1st phaser the 38, the 2nd phaser the 39, the 3rd phaser 40 and the 4th phaser 41.Thus, can obtain higher this favourable effect of the insulation that can make between the 1st variable matching circuit 6a and the 2nd variable matching circuit 6b.
In addition, also can be according to when having inputted the equal signal of the absolute value of same phase and amplitude to the 1st terminal 23 and the 2nd terminal 24, the difference of the phase place of the phase place of the signal that the 1st intersection point 32 sides of the 1st circuit 28 occur, the signal that occurs with the 1st intersection point 32 sides of the 2nd circuit 29 is roughly the mode of 180 degree ± 360 degree * n (n is more than 0 integer), designs line length, the 1st match circuit the 34, the 2nd match circuit 35 and the 1st phaser the 38, the 2nd phaser 39 of the 1st circuit 28, the 2nd circuit 29.
Here, for example, when being transfused to the signal of common mode between the 1st terminal 23 and the 2nd terminal 24, between the 1st terminal 23 and the 2nd terminal 24, the phase difference vanishing of the electric current of the signal of common mode.Therefore, when having inputted the equal signal of the absolute value of same phase and amplitude to the 1st terminal 23 and the 2nd terminal 24, the difference of the phase place of the phase place of the signal that the 1st intersection point 32 sides of the 1st circuit 28 occur, the signal that occurs with the 1st intersection point 32 sides of the 2nd circuit 29 is roughly 180 degree ± 360 degree * n (n is more than 0 integer).At the 1st intersection point 32, the electric current of the signal of common mode is cancelled, and propagates hardly the signal of common mode from the 1st intersection point 32 to the 1st variable matching circuit 6a side.
On the contrary, for example, when being transfused to the signal of differential mode between the 1st terminal 23 and the 2nd terminal 24, between the 1st terminal 23 and the 2nd terminal 24, the phase difference variable of the electric current of the signal of differential mode is ± 180 degree.Therefore, when having inputted the equal signal of absolute value that phase difference is ± 180 degree and amplitude to the 1st terminal 23 and the 2nd terminal 24, the difference of the phase place of the phase place of the signal that the 1st intersection point 32 sides of the 1st circuit 28 occur, the signal that occurs with the 1st intersection point 32 sides of the 2nd circuit 29 is roughly 0 degree+360 degree * n (n is more than 0 integer).At the 1st intersection point 32, the electric current of the signal of differential mode is added, and the signal of differential mode is nearly all propagated to the 1st variable matching circuit 6a side from the 1st intersection point 32.
Like this, by according to when the 1st terminal 23 and the 2nd terminal 24 having been inputted to the equal signal of the absolute value of same phase, amplitude, the mode that the difference of the phase place of the phase place of the signal that the 1st intersection point 32 sides of the 1st circuit 28 occur, the signal that occurs with the 1st intersection point 32 sides of the 2nd circuit 29 is roughly 180 degree ± 360 degree * n (n is more than 0 integer) designs, the signal that can only select thus the differential mode of generation between the 1st terminal 23 and the 2nd terminal 24, makes it to the 1st variable matching circuit 6a, propagate.
And, considering when the 1st terminal 23 and the 2nd terminal 24 having been inputted to the equal signal of the absolute value of same phase, amplitude, the difference of the phase place of the phase place of the signal that the 1st intersection point 32 sides of the 1st circuit 28 occur, the signal that occurs with the 1st intersection point 32 sides of the 2nd circuit 29 is roughly in the situation of condition of 180 degree ± 360 degree * n (n is more than 0 integer), the phase changing capacity from the 1st terminal 23 to the 2nd intersection point 32, with the difference from the 2nd terminal 24 to the phase changing capacity of the 2nd intersection point 33 be zero.
; the electric current of the signal of the common mode producing between the 1st terminal 23 and the 2nd terminal 24 is added with homophase at the 2nd intersection point 33; nearly all from the 2nd intersection point 33, to the 2nd variable matching circuit 6b side, propagate; on the contrary; the electric current of the signal of the differential mode producing between the 1st terminal 23 and the 2nd terminal 24 is added and is cancelled with anti-phase at the 2nd intersection point 33, propagates hardly from the 2nd intersection point 33 to the 2nd variable matching circuit 6b side.
Therefore, the signal of the differential mode producing between the 1st terminal 23 and the 2nd terminal 24 is nearly all only propagated to the 1st variable matching circuit 6a side, and the signal of the common mode producing between the 1st terminal 23 and the 2nd terminal 24 is nearly all only propagated to the 2nd variable matching circuit 6b side.That is, the 2nd antenna element 43 of present embodiment can take out respectively the signal of described 2 patterns that produce between the 1st terminal 23 and the 2nd terminal 24.
In addition, in this situation, also can be according to when the 1st terminal 23 and the 2nd terminal 24 having been inputted to the equal signal of the absolute value of same phase, amplitude, the roughly the same mode of absolute value of the amplitude of the absolute value of the amplitude of the signal that the 1st intersection point 32 sides of the 1st circuit 28 occur, the signal that occurs with the 1st intersection point 32 sides of the 2nd circuit 29, design the line length of the 1st circuit 28, the 2nd circuit 29, the 1st match circuit the 34, the 2nd match circuit 35 and the 1st phaser the 38, the 2nd phaser 39.
Thus, the further precision of electric current of the signal of the common mode occurring at the 1st intersection point 32 can be offset well, can be improved the ratio of signal of the relative common mode of signal of the differential mode of the signal of propagating to the 1st variable matching circuit 6a side from the 1st intersection point 32.In addition, equally can be according to when having inputted phase difference to the 1st terminal 23 and the 2nd terminal 24 and be the equal signal of the absolute value of 180 degree, amplitude, the roughly the same mode of absolute value of the amplitude of the absolute value of the amplitude of the signal that the 2nd intersection point 33 sides of the 3rd circuit 30 occur, the signal that occurs with the 2nd intersection point 33 sides of the 4th circuit 31, design the line length of the 3rd circuit 30, the 4th circuit 31, the 3rd match circuit the 36, the 4th match circuit 37 and the 3rd phaser the 40, the 4th phaser 41.
The further precision of electric current of the signal of the differential mode occurring at the 2nd intersection point 33 can be offset well, can be improved the ratio of signal component of the relative common mode of differential mode of the signal of propagating to the 2nd variable matching circuit 6b side from the 2nd intersection point 33.Thus, can the low signal of common mode and the signal accuracy of differential mode of the coefficient correlation producing in antenna element 27 is separated well, can realize the diversity antenna that can obtain 2 signals that coefficient correlation is low.
In addition, also can be roughly according to the phase changing capacity from the 1st terminal 23 to the 1st intersection point 32 90 degree ± 360 degree * n (n is more than 0 integer), and the phase changing capacity from the 2nd terminal 24 to the 1st intersection point 32 is roughly the mode of-90 degree ± 360 degree * n (n is more than 0 integer), design the line length of the 1st circuit 28, the 2nd circuit 29, the 1st match circuit the 34, the 2nd match circuit 35 and the 1st phaser the 38, the 2nd phaser 39.
When having produced the signal of common mode between the 1st terminal 23 and the 2nd terminal 24, because the phase changing capacity from the 1st terminal 23 to the 1st intersection point 32 is roughly 90 degree ± 360 degree * n (n is more than 0 integer), and the phase changing capacity from the 2nd terminal 33 to the 1st intersection point 32 is roughly-90 degree ± 360 degree * n (n is more than 0 integer), so be cancelled at the signal of the 1st intersection point 32 common modes.
That is,, for the signal of common mode, the 1st intersection point 32 becomes the place that imagination is grounded.The 1st intersection point 32 being grounded from imagination is respectively 90 degree ,-90 degree to the phase changing capacity of the 1st terminal 23 and the 2nd terminal 24, and the input impedance while observing respectively the 1st intersection point 32 side from the 1st terminal 23 and the 2nd terminal 24 thus becomes infinity.Therefore, the signal of the common mode producing between the 1st terminal 23 and the 2nd terminal 24 is propagated to the 1st intersection point 32 sides hardly, and nearly all to the 2nd intersection point 33 sides, propagates.
Thus, the ratio of signal of the relative differential mode of signal of the common mode of propagating to the 2nd variable matching circuit 6b can be further improved, and the ratio of signal of the relative common mode of signal of the differential mode of propagating to the 1st variable matching circuit 6a can be improved.
And, under this condition, also can be according to when having inputted the equal signal of the absolute value of same phase, amplitude to the 1st terminal 23 and the 2nd terminal 24, the roughly the same mode of absolute value of the amplitude of the absolute value of the amplitude of the signal that the 1st intersection point 32 sides of the 1st circuit 28 occur, the signal that occurs with the 1st intersection point 32 sides of the 2nd circuit 29, design the line length of the 1st circuit 28, the 2nd circuit 29, the 1st match circuit the 34, the 2nd match circuit 35 and the 1st phaser the 38, the 2nd phaser 39.The further precision of electric current of the signal of the common mode occurring at the 1st intersection point 32 can be offset well, can be improved the ratio of signal component of the relative common mode of differential mode of the signal of propagating to the 1st variable matching circuit 6a side from the 1st intersection point 32.Thus, can the signal of common mode and the signal accuracy of differential mode that in antenna element 27, produce is separated well, can realize the diversity antenna that can obtain 2 signals that coefficient correlation is low.
In addition, also can be roughly according to the phase changing capacity from the 1st terminal 23 to the 2nd intersection point 32+90 degree ± 180 degree * n (n is more than 0 integer), and the mode of be roughly+90 degree ± 180 degree * n (n is more than 0 integer) of the phase changing capacity from the 2nd terminal 24 to the 2nd intersection point 33, design the line length of the 3rd circuit 30, the 4th circuit 31, the 3rd match circuit the 36, the 4th match circuit 37 and the 3rd phaser the 38, the 4th phaser 39.
Thus, for example, when having produced the signal of differential mode between the 1st terminal 23 and the 2nd terminal 24, due to the phase changing capacity from the 1st terminal 23 to the 2nd intersection point 33, with phase changing capacity from the 2nd terminal 24 to the 2nd intersection point 33 be same amount, so be cancelled at the signal of the 2nd intersection point 33 differential modes.
That is,, for the signal of differential mode, the 2nd intersection point 33 becomes the place that imagination is grounded.The 2nd intersection point 33 being grounded from imagination is all 90 degree to the phase changing capacity of the 1st terminal 23 and the 2nd terminal 24, and thus, the input impedance while observing respectively the 2nd intersection point 33 side from the 1st terminal 23 and the 2nd terminal 24 becomes infinity.Therefore, the signal of the differential mode producing between the 1st terminal 23 and the 2nd terminal 24 is propagated to the 2nd intersection point 33 sides hardly, and nearly all to the 1st intersection point 32 sides, propagates.
Thus, the ratio of signal of the relative common mode of signal of the differential mode of propagating to the 1st variable matching circuit 6b can be further improved, and the ratio of signal of the relative differential mode of signal of the common mode of propagating to the 2nd variable matching circuit 6b can be further improved.
And, under this condition, also can be according to when having inputted phase difference to the 1st terminal 23 and the 2nd terminal 24 and be the equal signal of the absolute value of 180 degree and amplitude, the roughly the same mode of absolute value of the amplitude of the absolute value of the amplitude of the signal that the 2nd intersection point 33 sides of the 3rd circuit 30 occur, the signal that occurs with the 2nd intersection point 33 sides of the 4th circuit 31, design the line length of the 3rd circuit 30, the 4th circuit 31, the 3rd match circuit the 36, the 4th match circuit 37 and the 3rd phaser the 40, the 4th phaser 41.The further precision of electric current of the signal of the differential mode occurring at the 2nd intersection point 33 can be offset well, can be improved the ratio of signal component of the relative differential mode of common mode of the signal of propagating to the 2nd variable matching circuit 6b side from the 2nd intersection point 33.Thus, can the low signal of common mode and the signal accuracy of differential mode of the coefficient correlation producing in antenna element 27 is separated well, can realize the diversity antenna that can obtain 2 signals that coefficient correlation is low.
In addition, in Figure 10, also can adopt the structure of at least 1 removal in the 1st match circuit the 34, the 2nd match circuit the 35, the 3rd match circuit the 36, the 4th match circuit the 37, the 1st phaser the 38, the 2nd phaser the 39, the 3rd phaser the 40, the 4th phaser 41.Thus, not only can reduce the loss in the 1st circuit the 28, the 2nd circuit the 29, the 3rd circuit 30 and the 4th circuit 31, and can reduce necessary components number, thereby can realize miniaturization, lightweight.
In addition, the 1st match circuit the 34, the 2nd match circuit the 35, the 3rd match circuit the 36, the 4th match circuit the 37, the 1st phaser the 38, the 2nd phaser the 39, the 3rd phaser the 40, the 4th phaser 41 utilizes the circuit of reactance component to design substantially, but also can utilize the circuit that contains resistive element, amplifying circuit etc. to design.Thus, not only can realize the high insulation characterisitic between the 1st variable matching circuit 6a and the 2nd variable matching circuit 6b, and can improve the Transceiver Features of the communicator 3 of Fig. 1.
Figure 11 is that the 2nd antenna element that present embodiment 5 is related to is assembled into the figure in Anneta module.Wherein, for only recording same-sign with the same formation of Figure 10, the different formation of take is carried out following explanation as center.
In Figure 11, as antenna element 27, the situation that has represented to use the dipole antenna (dipole antenna) consisting of following 2 pairs of antenna elements, described 2 pairs of antenna elements refer to: the antenna element consisting of the 1st unit (element) 44 and the 3rd unit 46 and the antenna element consisting of the 2nd unit 45 and the 4th unit 47.In Figure 11, in the end of the 3rd unit 46, be provided with the 1st terminal 23, in the end of the 4th unit 47, be provided with the 2nd terminal 24.
The relative line 49 arbitrarily of antenna element 27 has the shape of line symmetry.Thus, the input impedance of the antenna element 27 of observing from the 1st terminal 23, roughly the same with the input impedance of the antenna element 27 of observing from the 2nd terminal 24, it is easy that the design of the 2nd antenna element 43 becomes.
And, the 1st circuit 28 being connected with the 1st terminal 23 and the 3rd circuit 30, the 2nd circuit 29 being connected with the 2nd terminal 24 and the 4th circuit the 31, the 1st phaser the 38, the 2nd phaser the 39, the 3rd phaser 40 and the 4th phaser 41 and active circuit 4, be configured in top and the below of ground plate built-in in communicator 3 48.
The mode that is+90 degree according to the phase changing capacity from the 1st terminal 23 to the 1st intersection point 32 has designed the 1st circuit 28 and the 1st phaser 38, and the mode that is-90 degree according to the phase changing capacity from the 2nd terminal 24 to the 1st intersection point 32 has designed the 2nd circuit 29 and the 2nd phaser 39.And, the mode that is+90 degree according to the phase changing capacity from the 1st terminal 23 to the 1st intersection point 33 has designed the 3rd circuit 30 and the 3rd phaser 40, and the mode that is+90 degree according to the phase changing capacity from the 2nd terminal 24 to the 1st intersection point 33 has designed the 4th circuit 31 and the 4th phaser 41.
The 1st unit 44 and the 2nd unit 45 are disposed at the end of ground plate 48 substantially in parallel, and the 3rd unit 46 and the 4th unit 47 are generally perpendicularly disposed at the end of ground plate 48.
The figure of action when Figure 12 means the differential mode of the antenna element that present embodiment 5 relates to.In Figure 12, the 1st unit 44 towards consistent electric current (using arrow diagramming in Figure 12), produces towards the opposite electric current in the 3rd unit 46 and the 4th unit 47 with generation in the 2nd unit 45.The phase difference of the signal therefore, producing in the 1st terminal 23 and the 2nd terminal 24 is 180 degree.When such signal is input to the 1st terminal 23 and the 2nd terminal 24,, there is signal at the 1st intersection point 32 in the principle based on above-mentioned, but does not occur signal at the 2nd intersection point 33.
That is, while having produced the signal of differential mode in antenna element 27, the 1st variable matching circuit 6a receives this signal, but the 2nd variable matching circuit 6b cannot receive this signal.In addition, when having inputted signal from the 1st variable matching circuit 6a to antenna assembly 1, this signal can not propagated to the 2nd variable matching circuit 6b, and most signal is supplied with to antenna element 27.And the signal being supplied to makes the electric current (Fig. 5 reference) of antenna element 27 generation differential modes, as electromagnetic wave and to aerial radiation.Current phasor on the antenna element 27 that contributes to radiate is mainly the current phasor producing in the 1st unit 44 and the 2nd unit 45, for the current phasor producing in the 3rd unit 46 and the 4th unit 47, towards the opposite due to current phasor, so can not cut much ice to radiation.Radiation pattern while therefore, having produced differential mode in antenna element 27 becomes by radiation pattern 50 such shown in the dotted line of Figure 12.Thus, when the electromagnetic wave mainly receiving from arriving with respect to the 1st unit 44 and the 2nd unit 45 vertical direction, on antenna element 27, produce differential mode, only can take out this signal from the 1st variable matching circuit 6a.
The figure of action when Figure 13 means the common mode of the antenna element that present embodiment 5 relates to.In Figure 13, in the 1st unit 44 and the 2nd unit 45, produce electric current towards the opposite (in Figure 13 with arrow diagramming), the 3rd unit 46 with in the 4th unit 47, produce towards consistent electric current.The phase difference essence of the signal therefore, producing in the 1st terminal 23 and the 2nd terminal 24 becomes 0 degree.When such signal is input to the 1st terminal 23 and the 2nd terminal 24,, there is signal at the 1st intersection point 32 in the principle based on above-mentioned, but does not occur signal at the 2nd intersection point 33.That is, when having produced the signal of common mode in antenna element 27, the 2nd variable matching circuit 6b receives this signal, but the 1st variable matching circuit 6a does not receive this signal.In addition, when having inputted signal from the 2nd variable matching circuit 6b to antenna assembly 2, this signal is not propagated to the 1st variable matching circuit 6a, and most signal is supplied with to antenna element 27.
And the signal being supplied to makes the electric current of antenna element 27 generation common modes, as shown in figure 13, as electromagnetic wave and to aerial radiation.Contributing to current phasor on the antenna element 27 of radiation is mainly the current phasor that produces in the 3rd unit 46 and the 4th unit 47, interlock and current phasor 52 on the ground plate 48 that produces with it.For the current phasor producing in the 1st unit 44 and the 2nd unit 45, due to current phasor towards becoming rightabout, so can not cut much ice to radiation.Radiation pattern while therefore, having produced common mode in antenna element 27 becomes the such radiation pattern 51 of dotting of Figure 13.Thus, when the electromagnetic wave receiving mainly from arriving with respect to the 3rd unit 46 and the 4th unit 47 vertical direction, on antenna element 27, produce common mode, only can take out this signal from the 2nd variable matching circuit 6b.
In sum, for example, by adopting the antenna element with symmetric construction 27 (dipole antenna) shown in Figure 11～13, can use 1 antenna element 27 as directive property diversity antenna.Thus, can realize miniaturization, the lightweight of Anneta module 1, because active circuit 4 can small integrated, so the supply of power supply and the 1st control signal becomes easy.
In addition, ground plate 48 also can be same with antenna element 27, has that to take line 49 be arbitrarily the shape of benchmark line symmetry.Thus, the design of directive property diversity antenna becomes easy.
The above-mentioned record relevant with the 2nd antenna element 43, is equally applicable to the situation of the 1st antenna element 22 with 4 terminals of Fig. 8, the situation of the 3rd antenna element 42 with 3 terminals of Fig. 9.
Figure 14 is the block diagram of the 1st antenna element that relates to of present embodiment 5.Represent to have and take line 49 arbitrarily and possess the antenna assembly of 4 terminals of line symmetric shape as benchmark.In Figure 14, the 1st terminal 23 on the 1st straight line (not shown) that the 1st terminal 23 is connected with the 2nd terminal 24 and the mid point (not shown) of the 2nd terminal 24, the line 49 vertical with the 1st straight line of take is benchmark, and antenna element 27 has in fact line symmetric shape.
And, the 3rd terminal 25 on the 3rd straight line (not shown) that the 3rd terminal 25 is connected with the 4th terminal 26 and the mid point (not shown) of the 4th terminal 26, with respect to the line 49 vertical with the 3rd straight line, antenna element 27 has in fact line symmetric shape.As antenna element 27, by adopting such shape, can make the design transfiguration of directive property diversity antenna easy.
Figure 15 is the block diagram of the 3rd antenna element that relates to of present embodiment 5.Represent to have and take line 49 arbitrarily and possess the antenna assembly of 3 terminals of line symmetric shape as benchmark.In Figure 15, the 1st terminal 23 on the 1st straight line (not shown) that the 1st terminal 23 is connected with the 2nd terminal 24 and the mid point (not shown) of the 2nd terminal 24, the line 49 vertical with the 1st straight line of take is benchmark, and antenna element 27 has in fact line symmetric shape.And, become the structure that essence on online 49 exists the 3rd terminal 25.As antenna element 27, by adopting such shape, can make the design transfiguration of directive property diversity antenna easy.
In addition, in execution mode 5, adopted the antenna element (dipole antenna) of symmetric construction, but needn't be defined in the antenna element of symmetric construction, so long as at least there is the antenna element of 2 splicing ears, also can use the antenna element of non-symmetrical configuration.The in the situation that of being built in the miniature portable terminals such as mobile phone in imagination, because the space that antenna element allows is considerably less, so be difficult to adopt the antenna element of symmetric construction.Therefore, if adopt antenna assembly of the present invention, even when having adopted the antenna element 27 of non-symmetrical configuration, also can distinguish independently these 2 patterns of common and different mode that receive, produce in transmitting antenna element 27, can be equivalently as 2 antenna elements performance functions.Thus, can realize accommodating the little miniaturized electronics of volume of Anneta module 1 is best antenna assembly.
From Figure 16 to Figure 25, represented that utilizing the input impedance by observing from the 1st terminal 23 is 50
The antenna element that the 1st unit 44 of Ω and the 3rd unit 46 form and the input impedance of observing from the 2nd terminal 24 are the 2nd unit 45 of 50 Ω and the antenna element that the 4th unit 47 forms, and have designed an example of the 2nd antenna element 43 in frequency 620MHz.
The figure of design example when Figure 16 means the differential mode of the 2nd antenna element that present embodiment 5 relates to.The figure of design example when Figure 17 means the common mode of the 2nd antenna element that present embodiment 5 relates to.Consider that antenna element 27 is with the situation of differential mode action.Due to the form that becomes the antenna element that formed by the 1st unit 44 and the 3rd unit 46, is connected in series with the antenna element being formed by the 2nd unit 45 and the 4th unit 47, so the input impedance of the antenna element 27 of observing from the 1st terminal 23 and the 2nd terminal 24 is 100 Ω.
Consider that antenna element 27 is with the situation of common mode action.Due to the form that becomes the antenna element that formed by the 1st unit 44 and the 3rd unit 46, is connected in parallel with the antenna element being formed by the 2nd unit 45 and the 4th unit 47, so the input impedance of the antenna element 27 of observing from the 1st terminal 23 and the 2nd terminal 24 is 25 Ω.
Owing to having reflected these facts in design, so the input impedance of the antenna element 27 of Figure 16 (port numbering is 3) is 100 Ω, the input impedance of the antenna element 27 of Figure 17 (port numbering is 6) is 25 Ω.And, because general high-frequency circuit designs with 50 Ω, so for the 1st load circuit 53 (port numbering is 1) of Figure 16 and the 1st load circuit 53 (port numbering is 4) of the 2nd load circuit 54 (port numbering is 2) and Figure 17 and the 2nd load circuit 54 (port numbering is 5), their input impedance is made as to 50 Ω and designs.Load when here, the 1st load circuit 53 has represented later observation of 55 pairs of active circuits of input port that are connected with the 1st intersection point 32 4 from the active circuit 4 of Figure 11.And the load of the 2nd load circuit 54 while having represented to observe after 56 pairs of active circuits of input port that are connected with the 2nd intersection point 33 from the active circuit 4 of Figure 11 4.
In Figure 16 and Figure 17, the 1st phaser the 38, the 2nd phaser the 39, the 3rd phaser 40 and the 4th phaser 41 are realized by the reactance component of 3 elements respectively.
The figure that passes through characteristic when Figure 18 means the differential mode of the antenna assembly that present embodiment 5 relates to.Figure 18 has represented the characteristic of passing through that the antenna element 27 shown in Figure 16 be take between the antenna element 27 (port numbering is 3) in differential mode when action and the 1st load circuit 53 (port numbering is 1) and the 2nd load circuit 54 (port numbering is 2).In Figure 18, for example, S (3,1) has represented the characteristic of passing through from the 1st load circuit 53 (port numbering is 1) to antenna element 27 (port numbering is 3).As shown in Figure 18, the characteristic S (3,1) that passes through from the 1st load circuit 53 (port numbering is 1) to antenna element 27 (port numbering is 3) is roughly 0dB in frequency 620MHz, is conducting state.In contrast, known passing through characteristic S (3,2) and in frequency 620MHz be from the 2nd load circuit 54 (port numbering is 2) to antenna element 27 (port numbering is 3)-below 30dB, obtained high insulation.And known,, for passing through characteristic S (2,1) from the 1st load circuit 53 (port numbering is 1) to the 2nd load circuit 54 (port numbering is 2), in frequency 620MHz, be also-below 30dB, obtained high insulation.
The figure that passes through characteristic when Figure 19 means the common mode of the antenna assembly that present embodiment 5 relates to.Figure 19 has represented the characteristic of passing through that the antenna element 27 shown in Figure 17 be take between the antenna element 27 (port numbering is 6) in common mode when action and the 1st load circuit 53 (port numbering is 4) and the 2nd load circuit 54 (port numbering is 5).In Figure 19, for example S (6,4) has represented the characteristic of passing through from the 1st load circuit 53 (port numbering is 4) to antenna element 27 (port numbering is 6).Known according to Figure 19, the characteristic S (6,5) that passes through from the 2nd load circuit 54 (port numbering is 5) to antenna element 27 (port numbering is 6) is roughly 0dB in frequency 620MHz, is conducting state.In contrast, known passing through characteristic S (6,4) and in frequency 620MHz be from the 1st load circuit 53 (port numbering is 4) to antenna element 27 (port numbering is 6)-below 30dB, obtained high insulation.And known,, for passing through characteristic S (5,4) from the 1st load circuit 53 (port numbering is 4) to the 2nd load circuit 54 (port numbering is 5), in frequency 620MHz, be also-below 30dB, obtained high insulation.
In summary, in fact can realize the 1st above-mentioned antenna element the 22, the 3rd antenna element 42, the action of the 2nd antenna element 43.As a reference, in Figure 20～Figure 25, represented the impedance operator in each port of port numbering 1～6.Figure 20 means the figure of the impedance operator in the port numbering 1 of the antenna assembly that present embodiment 5 relates to.Equally, Figure 21 means the figure of the impedance operator in port numbering 2, Figure 22 means the figure of the impedance operator in port numbering 3, Figure 23 means the figure of the impedance operator in port numbering 4, Figure 24 means the figure of the impedance operator in port numbering 5, and Figure 25 means the figure of the impedance operator in port numbering 6.
In Figure 20～Figure 25, for example, input impedance characteristic when S (1,1) has represented the 1st intersection point 32 observation the 2nd antenna element 43 from Figure 11.
Wherein, for the 1st antenna element the 22, the 2nd antenna element 43, the characteristic impedance of the 1st circuit the 28, the 2nd circuit the 29, the 3rd circuit 30, the 4th circuit 31 is all Zo.The input impedance of the antenna element 27 of also can be designed to input impedance that the 1st intersection point 32 of the 1st load circuit 53 from being connected with the 1st intersection point 32 observes, the input impedance of observing from the 2nd intersection point 33 of the 2nd load circuit 54 that is connected with the 2nd intersection point 33, observing from the 1st terminal 23 and be all roughly Zo/2 from the input impedance of the antenna element 27 of the 2nd terminal 24 observations.Thus, easily obtain antenna element 27, with the impedance matching of the 1st load circuit 53 or the 2nd load circuit 54, can reduce reflection loss.As a reference, Figure 16, Figure 17 have met above-mentioned impedance relationship, and result, as shown in Figure 18～25, has realized good electrical characteristics.
In addition, in Fig. 8～Figure 10, between the 1st terminal 23 and the 1st intersection point 32, by 28,1 the 1st match circuit 34 of the 1st circuit and 1 the 1st phaser 38 as 1 circuit, formed, but also can be formed by a plurality of circuits, a plurality of match circuit, a plurality of phase circuit.For between the 2nd terminal 24 and the 1st intersection point 32, between the 3rd terminal 25 and the 2nd intersection point 33, between the 4th terminal 26 and the 2nd intersection point 33 too.
And the 1st circuit, the 2nd circuit, the 3rd circuit, the 4th circuit also comprise situation about consisting of a plurality of circuits.Equally, the 1st match circuit, the 2nd match circuit, the 3rd match circuit, the 4th match circuit also comprise situation about consisting of a plurality of match circuits, and the 1st phaser, the 2nd phaser, the 3rd phaser, the 4th phaser also comprise situation about consisting of a plurality of phasers.
(execution mode 6)
Below, utilize Figure 26～29 pair embodiments of the present invention 6 to describe.Figure 26 means the figure of the embodiment of the vehicle mounted antenna that present embodiment 6 relates to.Figure 26 means the skeleton diagram of an embodiment in the vehicle mounted antenna that for example antenna assembly shown in execution mode 5 is applied to receiving television broadcasting, radio broadcasting, is the figure during from the indoor observation of car windshield 57.
In Figure 26, antenna element 27 shown in execution mode 5 is formed on to the 1st film antenna 58 on transparent resin film, is secured at the car indoor of the upper area (for example the top board 59 apart from vehicle is that 10cm is with interior region with the limit that windshield 57 joins) of windshield 57.
And the top of the 1st film antenna 58 (antenna element 27) in Figure 26, disposes the 1st circuit 60 being connected with the 1st film antenna 58.The 1st circuit 60 is the circuit with the active element 4 etc. of the circuit (being equivalent to the 1st match circuit the 34, the 1st phase circuit 38 etc.) that is configured in the 2nd antenna element 43 under antenna element 27 and Fig. 1 etc.
And, the 1st circuit 60 and electronic unit 9 by about 5m left and right the 1st transmission line 14a be connected with the 2nd transmission line 14b.
Figure 27, Figure 28 have carried out illustrated figure from car top to the embodiment shown in Figure 26.
Radiation pattern when Figure 27 is the differential mode of the vehicle mounted antenna that relates to of present embodiment 6.The radiation pattern 61 of antenna assembly when Figure 27 has represented the 1st terminal 23 (with reference to Figure 12) of the 1st film antenna 58 (antenna element 27) and the 2nd terminal 24 (with reference to Figure 12) to encourage the signal of differential mode.Radiation pattern 61 radiates based on principle illustrated in fig. 12.It is the radiation pattern during from the 2nd transmission line 14b receiving and transmitting signal.
Because top board 59 plays the effect of reflecting plate, so the directional gain of the forward direction of car is larger than the directional gain of the rear direction of car.Thus, can be suppressed at that car is indoorly reflected, scattering is afterwards to the reception of the television broadcasting ripple of the 1st film antenna 58.Reflection during car is indoor, scattered wave are because amplitude, the phase place change of time per unit are large, so in the situation that received television broadcasting is digital broadcasting, easily make a mistake at solution timing.Therefore, the antenna assembly 2 shown in execution mode 6 can suppress, to the reception from the indoor reflection of car, scattered wave, can improve receiving feature.
Radiation pattern when Figure 28 is the common mode of the vehicle mounted antenna that relates to of present embodiment 6.The radiation pattern 62 of antenna assembly when Figure 28 has represented the 1st terminal 23 (with reference to Figure 12) of the 1st film antenna 58 (antenna element 27) and the 2nd terminal 24 (with reference to Figure 12) to encourage the signal of common mode.Radiation pattern 62 radiates based on principle illustrated in fig. 13.It is the radiation pattern during from the 1st transmission line 14a receiving and transmitting signal.
Because top board 59 plays the effect of reflecting plate, so radiate the maximum direction of pattern 62, to the forward direction of car, tilt a little.
As shown in Figure 27, Figure 28, in radiation pattern 61 when via the 1st transmission line 14a exchange signal, the radiation pattern 62 when via the 2nd transmission line 14b exchange signal, the peak value direction that can make to radiate pattern is quadrature roughly, can realize Anneta module 1 small-sized and that coefficient correlation is low.
For example, in Fig. 1, owing to carrying out power supply supply via the 1st transmission line 14a to active elements such as the 1st amplifier 7a, the 2nd amplifier 7b, so antenna assembly 2 needs the antenna element small-sized, coefficient correlation is low, antenna element 27 of the present invention can be described as the optimal antenna element that has met this condition.
In addition, in the above description, use the 2nd antenna element 43 shown in execution mode 5 to be illustrated, but needn't limit therewith, utilize the antenna assembly shown in execution mode 1～4 also can obtain same effect.
And, in Fig. 1, the 1st antenna 5a that can replace Anneta module 1, and use the 1st antenna element 22 of Fig. 8, any 1 antenna element (antenna element the 1st antenna 5a of alternate figures 1 being used is called antenna element A later) in the 3rd antenna element 42 of the 2nd antenna element 43 of Figure 10, Fig. 9.And, also can replace the 2nd antenna 5b and use the 1st antenna element 22 of Fig. 8, any 1 antenna element in the 3rd antenna element 42 of the 2nd antenna element 43 of Figure 10, Fig. 9 (antenna element that replaces the 2nd antenna 5b of Fig. 1 and use being called to antenna element B) later.
In this situation, active circuit 4 possesses: between the 1st intersection point 32 of antenna element A and the 2nd intersection point 33, switch with the corresponding the other side's who is connected of the 1st transmission line 14a the 1st switch (not shown) and in switching between the 1st intersection point 32 of antenna element B and the 2nd intersection point 33 the 2nd switch (not shown) with the corresponding the other side who is connected of the 2nd transmission line 14b.
Here, the 1st switch (not shown) and the 2nd switch (not shown) can be supplied to power supply via the 1st transmission line 14a from the power-supply circuit 16 of Fig. 1.
In addition, the 1st switch (not shown) and the 2nd switch (not shown) performance number based on receiving, the signal quality value (being equivalent to C/N characteristic, BER characteristic) of reception signal, control by the 1st control signal being supplied to via the 2nd transmission line 14b from the 1st control signal circuit for generating 17a.
And, the 1st control signal being supplied to via the 2nd transmission line 14b from the 1st control signal circuit for generating 17a can have a plurality of magnitudes of voltage that are distinguished into different level, based on the plurality of magnitude of voltage, independently controls the 1st switch (not shown) and the 2nd switch (not shown).
In the situation that the embodiment of Fig. 1, the supply of the 1st control signal is only undertaken by 1 circuit of the 2nd transmission line 14b, can imagine and be difficult to the while and control independently the 1st switch (not shown), the 2nd switch (not shown) as 2 control object elements, but antenna assembly 2 of the present invention is due to the current potential width that can utilize the 1st control signal broadness, thus can be easily simultaneously and control independently the 1st switch (not shown), the 2nd switch (not shown).
Thus, the antenna assembly of the diversity mode of small-sized 4 branches can be easily realized, receiving feature can be improved.
Figure 29 means the figure of the embodiment of the vehicle mounted antenna that has used the antenna assembly that 2 groups of present embodiments 6 relate to.In Figure 29, represented to use the diversity mode antenna assembly (diversity reception mode that adds up to 8 branches) of 2 groups of above-mentioned 4 branches, the embodiment while having constructed vehicle mounted TV receiving system.
In Figure 29, by above-mentioned antenna element A and antenna element B be formed on the 2nd film antenna 63 on transparent resin film, with above-mentioned antenna element A and antenna element B are formed on to the 3rd film antenna 64 on transparent resin film, be secured at the car indoor of the upper area (for example, the top board 59 apart from car is that 10cm is with interior region with the limit that windshield 57 joins) of windshield 57.
The 1st transmission line 14a being connected with the 1st switch (not shown) that is configured in the top of the 2nd film antenna 63 is connected with electronic unit 9 with the 2nd transmission line 14b that the 2nd switch (not shown) with being configured in the top of the 2nd film antenna 63 is connected.Equally, the 3rd transmission line 14c being connected with the 1st switch (not shown) that is configured in the top of the 3rd film antenna 64 is connected with electronic unit 9 with the 4th transmission line 14d that the 2nd switch (not shown) with being configured in the top of the 3rd film antenna 64 is connected.
By the formation shown in Figure 29, can construct the diversity system of 8 branches, can easily realize the communicator 3 that receiving feature is high.
In addition, in the explanation of embodiments of the invention, carried out " connection " this description, this means electrical connection, such as being connection, the connection of static, connection of electromagnetism etc. based on welding, so long as the method for attachment of signal that can transmit antenna.
Above, mainly according to the example of diversity system, describe the present invention, but application of the present invention is not limited thereto.For example, also can be used as and receive the system (for example, utilize the 1st antenna reception television broadcasting, utilize the system of the signal of the 2nd antenna reception mobile phone) of 2 above systems or antenna assembly that MIMO receive-transmit system is used and use.
Utilizability in industry
As mentioned above, antenna assembly of the present invention is owing to need to not preparing adjuster in active circuit, so can realize the antenna assembly of small-sized diversity mode, can in small-sized communication terminal etc., use.

Claims (9)

1. an antenna assembly, possesses: from the 1st antenna and the 2nd antenna be transfused to receive the active circuit of signal, 1st transmission line that be connected corresponding to described the 1st antenna with corresponding the 2nd transmission line being connected of described the 2nd antenna, wherein,
On described antenna assembly, be connected with electronic unit,
From the power-supply circuit of described electronic unit via described the 1st transmission line to described active circuit supply power,
From the 1st control signal circuit for generating of described electronic unit, via described the 2nd transmission line, to described active circuit, supply with the 1st control signal, control described active circuit,
By the antenna element with following characteristics, form described the 1st antenna and described the 2nd antenna,
Described antenna element possesses:
The antenna element with the 1st terminal, the 2nd terminal, the 3rd terminal and the 4th terminal; The 1st circuit that one side is connected with described the 1st terminal; The 2nd circuit that one side is connected with described the 2nd terminal; The 3rd circuit that one side is connected with described the 3rd terminal; The 4th circuit being connected with described the 4th terminal with a side;
The opposing party of described the 1st circuit is connected at the 1st intersection point with the opposing party of described the 2nd circuit,
The opposing party of described the 3rd circuit is connected at the 2nd intersection point with the opposing party of described the 4th circuit,
When having inputted signal from described the 1st intersection point, the phase difference of the phase place of the phase place of the signal that described the 2nd intersection point side of described the 3rd circuit occurs, the signal that occurs with described the 2nd intersection point side of described the 4th circuit is roughly 180 degree,
When having inputted the signal of same phase and same-amplitude to described the 1st terminal and described the 2nd terminal, the phase difference of the phase place of the phase place of the signal that described the 1st intersection point side of described the 1st circuit occurs, the signal that occurs with described the 1st intersection point side of described the 2nd circuit is roughly 180 degree
When having inputted phase difference and be the signal of 180 degree and same-amplitude when inputted phase difference to described the 1st terminal and described the 2nd terminal be the signal of 180 degree and same-amplitude or to described the 3rd terminal and described the 4th terminal, the phase difference of the phase place of the phase place of the signal that described the 2nd intersection point side of described the 3rd circuit occurs, the signal that occurs with described the 2nd intersection point side of described the 4th circuit is roughly 180 degree
Be roughly+90 degree+180 degree * n of phase changing capacity from described the 1st terminal or described the 3rd terminal to described the 2nd intersection point, wherein n is more than 0 integer,
Be roughly+90 degree+180 degree * n of phase changing capacity from described the 2nd terminal or described the 4th terminal to described the 2nd intersection point, wherein n is more than 0 integer,
Described the 1st intersection point of described antenna element and side's intersection point in described the 2nd intersection point be with the described the 1st transmission line is corresponding is connected, the opposing party's intersection point and the corresponding connection of described the 2nd transmission line.
2. an antenna assembly, possesses: from the 1st antenna and the 2nd antenna be transfused to receive the active circuit of signal, 1st transmission line that be connected corresponding to described the 1st antenna with corresponding the 2nd transmission line being connected of described the 2nd antenna, wherein,
On described antenna assembly, be connected with electronic unit,
From the power-supply circuit of described electronic unit via described the 1st transmission line to described active circuit supply power,
From the 1st control signal circuit for generating of described electronic unit, via described the 2nd transmission line, to described active circuit, supply with the 1st control signal, control described active circuit,
By the antenna element with following characteristics, form described the 1st antenna and described the 2nd antenna,
Described antenna element possesses:
The antenna element with the 1st terminal, the 2nd terminal, the 3rd terminal and the 4th terminal; The 1st circuit that one side is connected with described the 1st terminal; The 2nd circuit that one side is connected with described the 2nd terminal; The 3rd circuit that one side is connected with described the 3rd terminal; The 4th circuit being connected with described the 4th terminal with a side;
The opposing party of described the 1st circuit is connected at the 1st intersection point with the opposing party of described the 2nd circuit,
The opposing party of described the 3rd circuit is connected at the 2nd intersection point with the opposing party of described the 4th circuit,
When having inputted signal from described the 1st intersection point, the phase difference of the phase place of the phase place of the signal that described the 2nd intersection point side of described the 3rd circuit occurs, the signal that occurs with described the 2nd intersection point side of described the 4th circuit is roughly 180 degree,
When having inputted the signal of same phase and same-amplitude to described the 1st terminal and described the 2nd terminal, the phase difference of the phase place of the phase place of the signal that described the 1st intersection point side of described the 1st circuit occurs, the signal that occurs with described the 1st intersection point side of described the 2nd circuit is roughly 180 degree
When having inputted phase difference and be the signal of 180 degree and same-amplitude when inputted phase difference to described the 1st terminal and described the 2nd terminal be the signal of 180 degree and same-amplitude or to described the 3rd terminal and described the 4th terminal, the phase difference of the phase place of the phase place of the signal that described the 2nd intersection point side of described the 3rd circuit occurs, the signal that occurs with described the 2nd intersection point side of described the 4th circuit is roughly 180 degree
Be roughly+90 degree-180 degree * n of phase changing capacity from described the 1st terminal or described the 3rd terminal to described the 2nd intersection point, wherein n is more than 0 integer,
Be roughly+90 degree-180 degree * n of phase changing capacity from described the 2nd terminal or described the 4th terminal to described the 2nd intersection point, wherein n is more than 0 integer,
Described the 1st intersection point of described antenna element and side's intersection point in described the 2nd intersection point be with the described the 1st transmission line is corresponding is connected, the opposing party's intersection point and the corresponding connection of described the 2nd transmission line.
3. an antenna assembly, possesses: from the 1st antenna and the 2nd antenna be transfused to receive the active circuit of signal, 1st transmission line that be connected corresponding to described the 1st antenna with corresponding the 2nd transmission line being connected of described the 2nd antenna, wherein,
On described antenna assembly, be connected with electronic unit,
From the power-supply circuit of described electronic unit via described the 1st transmission line to described active circuit supply power,
From the 1st control signal circuit for generating of described electronic unit, via described the 2nd transmission line, to described active circuit, supply with the 1st control signal, control described active circuit,
By the antenna element with following characteristics, form described the 1st antenna and described the 2nd antenna,
Described antenna element possesses: the antenna element with the 1st terminal and the 2nd terminal; The 1st circuit that one side is connected with described the 1st terminal; The 3rd circuit that one side is connected with described the 1st terminal; The 2nd circuit that one side is connected with described the 2nd terminal; The 4th circuit being connected with described the 2nd terminal with a side,
The opposing party of the opposing party of described the 1st circuit and described the 2nd circuit is connected with the 1st intersection point,
The opposing party of the opposing party of described the 3rd circuit and described the 4th circuit is connected with the 2nd intersection point,
When having inputted signal from described the 1st intersection point,
The phase difference of the phase place of the phase place of the signal that described the 2nd intersection point side of described the 3rd circuit occurs, the signal that occurs with described the 2nd intersection point side of described the 4th circuit is roughly 180 degree,
When having inputted the signal of same phase and same-amplitude to described the 1st terminal and described the 2nd terminal, the phase difference of the phase place of the phase place of the signal that described the 1st intersection point side of described the 1st circuit occurs, the signal that occurs with described the 1st intersection point side of described the 2nd circuit is roughly 180 degree
When having inputted phase difference to described the 1st terminal and described the 2nd terminal and be the signal of 180 degree and same-amplitude, the phase difference of the phase place of the phase place of the signal that described the 2nd intersection point side of described the 3rd circuit occurs, the signal that occurs with described the 2nd intersection point side of described the 4th circuit is roughly 180 degree, and be roughly+90 degree+180 degree * n of the phase changing capacity from described the 1st terminal to described the 2nd intersection point, wherein n is more than 0 integer, be roughly+90 degree+180 degree * n of phase changing capacity from described the 2nd terminal to described the 2nd intersection point, wherein n is more than 0 integer
Described the 1st intersection point of described antenna element and side's intersection point in described the 2nd intersection point be with the described the 1st transmission line is corresponding is connected, the opposing party's intersection point and the corresponding connection of described the 2nd transmission line.
4. an antenna assembly, possesses: from the 1st antenna and the 2nd antenna be transfused to receive the active circuit of signal, 1st transmission line that be connected corresponding to described the 1st antenna with corresponding the 2nd transmission line being connected of described the 2nd antenna, wherein,
On described antenna assembly, be connected with electronic unit,
From the power-supply circuit of described electronic unit via described the 1st transmission line to described active circuit supply power,
From the 1st control signal circuit for generating of described electronic unit, via described the 2nd transmission line, to described active circuit, supply with the 1st control signal, control described active circuit,
By the antenna element with following characteristics, form described the 1st antenna and described the 2nd antenna,
Described antenna element possesses: the antenna element with the 1st terminal and the 2nd terminal; The 1st circuit that one side is connected with described the 1st terminal; The 3rd circuit that one side is connected with described the 1st terminal; The 2nd circuit that one side is connected with described the 2nd terminal; The 4th circuit being connected with described the 2nd terminal with a side,
The opposing party of the opposing party of described the 1st circuit and described the 2nd circuit is connected with the 1st intersection point,
The opposing party of the opposing party of described the 3rd circuit and described the 4th circuit is connected with the 2nd intersection point,
When having inputted signal from described the 1st intersection point,
The phase difference of the phase place of the phase place of the signal that described the 2nd intersection point side of described the 3rd circuit occurs, the signal that occurs with described the 2nd intersection point side of described the 4th circuit is roughly 180 degree,
When having inputted the signal of same phase and same-amplitude to described the 1st terminal and described the 2nd terminal, the phase difference of the phase place of the phase place of the signal that described the 1st intersection point side of described the 1st circuit occurs, the signal that occurs with described the 1st intersection point side of described the 2nd circuit is roughly 180 degree
When having inputted phase difference to described the 1st terminal and described the 2nd terminal and be the signal of 180 degree and same-amplitude, the phase difference of the phase place of the phase place of the signal that described the 2nd intersection point side of described the 3rd circuit occurs, the signal that occurs with described the 2nd intersection point side of described the 4th circuit is roughly 180 degree, and be roughly+90 degree-180 degree * n of the phase changing capacity from described the 1st terminal to described the 2nd intersection point, wherein n is more than 0 integer, be roughly+90 degree-180 degree * n of phase changing capacity from described the 2nd terminal to described the 2nd intersection point, wherein n is more than 0 integer
Described the 1st intersection point of described antenna element and side's intersection point in described the 2nd intersection point be with the described the 1st transmission line is corresponding is connected, the opposing party's intersection point and the corresponding connection of described the 2nd transmission line.
5. an antenna assembly, possesses: from the 1st antenna and the 2nd antenna be transfused to receive the active circuit of signal, 1st transmission line that be connected corresponding to described the 1st antenna with corresponding the 2nd transmission line being connected of described the 2nd antenna, wherein,
On described antenna assembly, be connected with electronic unit,
From the power-supply circuit of described electronic unit via described the 1st transmission line to described active circuit supply power,
From the 1st control signal circuit for generating of described electronic unit, via described the 2nd transmission line, to described active circuit, supply with the 1st control signal, control described active circuit,
By the antenna element with following characteristics, form described the 1st antenna and described the 2nd antenna,
Described antenna element possesses: the antenna element with the 1st terminal, the 2nd terminal and the 3rd terminal; The 1st circuit that one side is connected with described the 1st terminal; The 2nd circuit that one side is connected with described the 2nd terminal; The 3rd circuit being connected with described the 3rd terminal with a side,
The opposing party of the opposing party of described the 1st circuit and described the 2nd circuit is connected with the 1st intersection point,
The opposing party of described the 3rd circuit is connected with the 2nd intersection point,
When having inputted signal from described the 2nd intersection point, the phase difference of the phase place of the phase place of the signal that described the 1st intersection point side of described the 1st circuit occurs, the signal that occurs with described the 1st intersection point side of described the 2nd circuit is roughly 180 degree,
When having inputted the signal of same phase and same-amplitude to described the 1st terminal and described the 2nd terminal, the phase difference of the phase place of the phase place of the signal that described the 1st intersection point side of described the 1st circuit occurs, the signal that occurs with described the 1st intersection point side of described the 2nd circuit is roughly 180 degree
Described the 1st intersection point of described antenna element and side's intersection point in described the 2nd intersection point be with the described the 1st transmission line is corresponding is connected, the opposing party's intersection point and the corresponding connection of described the 2nd transmission line.
6. an antenna assembly, possesses: from the 1st antenna and the 2nd antenna be transfused to receive the active circuit of signal, 1st transmission line that be connected corresponding to described the 1st antenna with corresponding the 2nd transmission line being connected of described the 2nd antenna, wherein,
On described antenna assembly, be connected with electronic unit,
From the power-supply circuit of described electronic unit via described the 1st transmission line to described active circuit supply power,
From the 1st control signal circuit for generating of described electronic unit, via described the 2nd transmission line, to described active circuit, supply with the 1st control signal, control described active circuit,
Described active circuit has and is transfused to from the reception signal of the 3rd antenna the 3rd transmission line of connection corresponding to described the 3rd antenna,
From the 2nd control signal circuit for generating of described electronic unit, via described the 3rd transmission line, to described active circuit, supply with the 2nd control signal, control described active circuit.
7. a communicator, it possesses:
Antenna assembly described in any one of claim 1～6; Be connected via the 1st high pass filter with described the 1st transmission line, the demodulator circuit being connected via the 2nd high pass filter with described the 2nd transmission line;
Described demodulator circuit is connected with described the 1st control signal circuit for generating.
8. communicator according to claim 7, is characterized in that,
Described demodulator circuit is to carrying out demodulation from the signal of described the 1st high pass filter and described the 2nd high pass filter input, sending out signals mass value, and according to the signal quality value of deriving, described the 1st control signal circuit for generating is controlled.
9. communicator according to claim 8, is characterized in that,
There is the testing circuit that the performance number of the signal from described the 1st high pass filter and described the 2nd high pass filter input is detected,
Described demodulator circuit is connected with described power-supply circuit,
Described demodulator circuit, according to the signal quality value or the detected performance number of described testing circuit that are derived by described demodulator circuit, is controlled described power-supply circuit.
CN200980129332.7A 2008-07-28 2009-07-27 Antenna device and communication equipment using same Expired - Fee Related CN102106092B (en)

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EP1686704A2 (en) * 2005-01-31 2006-08-02 Alps Electric Co., Ltd. Vehicle-mounted receiving apparatus

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