CN1266803C - Antenn device and radio apparatus using it - Google Patents
Antenn device and radio apparatus using it Download PDFInfo
- Publication number
- CN1266803C CN1266803C CN 02801452 CN02801452A CN1266803C CN 1266803 C CN1266803 C CN 1266803C CN 02801452 CN02801452 CN 02801452 CN 02801452 A CN02801452 A CN 02801452A CN 1266803 C CN1266803 C CN 1266803C
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/10—Resonant slot antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/08—Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/0414—Substantially flat resonant element parallel to ground plane, e.g. patch antenna in a stacked or folded configuration
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/0421—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with a shorting wall or a shorting pin at one end of the element
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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
Abstract
A small, thin, wide-range, and high-sensitiviy antenna device easy to set impedance characteristics. A first platelike antenna element is disposed above a conductor ground plate including a first terminal electrically connected to the conductor ground plate, a second terminal electrically connected to the radio apparatus body at a predetermined distance from the first terminal, and at least a radiation conductor element. The second platelike antenna element includes a conductor ground plate and at least a radiation conductor element not directly connected to the first antenna element. At least a radiation conductor element of the second element is located between the conductor ground plate and the first antenna element. The dimensions of the conductor ground plate, first antenna element, and second element and the gap among them are set according to desired impdance characteristics and band width.
Description
Technical field
The present invention relates generally to antenna assembly that uses in the wireless device of tracking exchage etc. and the wireless device that uses it.
Background technology
In recent years, the demand for the wireless device of tracking exchage grows to even greater heights.Therefore, wish that wireless device can be with a diversified communication form of correspondence, and be high-performance, small-sized and light weight.Antenna assembly is also wished the size that can use in such wireless device, and has desirable performance.
Such antenna assembly and to use the representative of its mobile communications device be mobile phone.Mobile phone uses in the various areas in the world, and its working band is also different with landing pit.
For example, the working band of below having represented digital mobile telephony.
The working band of the Personal Digital Cellular (PDC) 800 of Japan is 810～960MHz.
The America and Europe, the working band of Group Special Mobile Community (GSM) is 890～960MHz.The working band of Personal Communication Network (PCN) is 1710～1880MHz.The working band of Personal Communication System (PCS) is 1850～1990MHz.
As the antenna assembly of the built-in usefulness of using in the above mobile phone, generally be extensive use of tabular inverted-F antenna.
Below, use Fig. 8 and Fig. 9 illustrate the tabular inverted-F antenna of lift-launch on mobile phone in the past.
Fig. 8 is the concept map of antenna assembly in the past.
Fig. 9 is the stereogram of a part that has excised the back side of the mobile phone that has carried identical antenna assembly.
In Fig. 8, below antenna element 1, the interval with antenna element 1 keeps 9mm has disposed conductor floor 2 abreast.
At this, antenna element 1 is the size of vertical approximately 35 * horizontal 45mm, is formed by the copper alloy plate of material thickness 0.2mm.Conductor floor 2 is formed by the copper alloy plate of material thickness 0.2mm.
Though do not show among Fig. 8, Fig. 9, by the maintaining part of resin dielectric material systems such as ABS, PPO, antenna element 1 is fixed, is supported on the conductor floor 2.
The first terminal 3 that is formed on an end of antenna element 1 has been electrically connected conductor floor 2 by methods such as solderings.Second terminal 5 is formed near the supply terminals 4 the first terminal 3.And, second terminal 5 with the state of conductor floor 2 insulation under, through hole 6 stretches out to 2 belows, conductor floor.As previously discussed, just constituted antenna assembly 7.
In addition, as shown in Figure 9, antenna assembly 7 is configured in the back box 9 of mobile phone 8.Though do not show that in 9 the conductor floor 2 of antenna assembly 7 has been electrically connected the shielding part of back box 9 inner surfaces that are formed on mobile phone 8.The method of second terminal 5 of antenna assembly 7 by pressure welding etc. has been electrically connected the high-frequency circuit portion (not shown) on the high-frequency circuit substrate of inboard of the back box 9 that is configured in mobile phone 8.
Below, the antenna assembly 7 that has adopted above structure is described and has used its mobile phone 8, should move below and be illustrated.
The impedance that is formed in the first terminal 3 on the antenna element 1 of antenna assembly 7 has showed inductive.Other parts of removing the first terminal 3 parts of observing from the supply terminals 4 of antenna element 1 form the capacitive character line.
The width L30 of the length L 10 on each limit of antenna element 1, L20, the first terminal 3 and the first terminal 3 are observed for the supply terminals 4 from antenna element 1 with distance L 40 decisions of supply terminals 4, provide desirable resonance frequency and input impedance to antenna assembly 7.
Input impedance is L30 and L40 based on the position of supply terminals 4.Therefore, as previously discussed,,, can adjust input impedance for impedance 50 Ω with the desirable resonance frequency of high-frequency circuit obtain coupling by decision L30 and L40.
In the time of behind the joint of mobile phone 8, the signal electric power of the desirable resonance frequency that receives by antenna element 1 is transferred to the high-frequency circuit portion that is configured in the back box inboard in the mobile phone 8 by second terminal 5 of antenna element 1.
In addition, when sending, from the signal electric power of the desirable resonance frequency of described high-frequency circuit portion output by second terminal 5, from antenna element 1 emission.
The technical descriptioon of general tabular inverse F antenna like this can be consulted in the document of the 109-114 page or leaf of integrated electronics publishing house " new antenna engineering " (the great work of new well) and other various technical papers, books etc.
Tabular inverse F antenna is suitable for that requirement is small-sized, the mobile phone antenna assembly of high-gain, wide directional transmissions pattern etc.In addition, tabular inverse F antenna can be realized small-sized slimming in desirable frequency band.In view of the above, tabular inverse F antenna is built in the housing of miniature instrument such as mobile phone, the degree of freedom is provided can for the design of instrument.
In addition, this antenna can be built in the mobile phone as the antenna assembly of mobile phone.Therefore, compare with the antenna of the type of exposing from mobile phone, strong for the patience of mechanical shock.This is because this antenna is protected from mechanical shock by the housing of mobile phone.Therefore, used the antenna assembly of tabular inverse F antenna because mechanical shock hardly can be undermined.Therefore, tabular inverse F antenna helps the long lifetime of the antenna assembly of mobile phone.
But, in the structure of antenna assembly in the past 7 shown in Figure 8, the narrow bandwidth of the given sensitivity in the frequency band that can obtain to use in the described mobile phone.This percentage bandwidth maximum is about 3%.In order to improve percentage bandwidth, it is big that its shape becomes.Therefore, be difficult to obtain can corresponding mobile phone in recent years small-sized, slimming and more small-sized slim, the broadband of the market trend of multiband, the antenna assembly of highly sensitive internally-arranged type.
And, such antenna assembly 7 is used in mobile phone shown in Figure 98, in order to realize broad in band, the high sensitivityization of frequency band, at second terminal 5 of antenna assembly 7 be arranged between the high-frequency circuit portion on the high-frequency circuit substrate of mobile phone 8, need the impedance matching circuit of the complexity that constitutes with the LC element.This becomes the main cause that the mobile phone cost improves.
Summary of the invention
The existence of problem in view of the above the objective of the invention is to: provide that needed space is little, broadband, high sensitivity, can use at multiband, the impedance adjustment is easy, productivity is high, and can be built in the antenna assembly in the wireless device.
Another object of the present invention is to: the cheapness and the high wireless device of speech quality that have used this antenna assembly are provided.
In antenna assembly of the present invention, comprise:
(a) conductor floor;
(b) tabular first antenna element, the upside that it is configured in described conductor floor comprises:
I) the first terminal on the described conductor of electrical connection floor,
Ii) leave described the first terminal and give second terminal of input and output set a distance, that be used for signal,
Iii) launch conductor element,
(c) tabular second antenna element, its length L 3 is adjustable, has and other emission conductor element of described conductor floor and non-at least one that electrically contacts of described first antenna element;
Described at least one other the emission conductor element of described second antenna element is configured between described conductor floor and described first antenna element, each that keeps described first antenna element, described second antenna element, described conductor floor by medium at interval,
By adjusting described L1, L2, L3, described first antenna element, described second antenna element, one or more resonance frequencys that obtain expecting and impedance operator in the interval of described conductor floor between each.
At this, first tabular antenna element and the second tabular antenna element separately the size and separately between the interval adjust and set according to desirable impedance operator and bandwidth.
Description of drawings
Following brief description accompanying drawing.
Fig. 1 represents the structure of the antenna assembly of the embodiment of the invention 1.
Fig. 2 represents the structure of the antenna assembly of the embodiment of the invention 2.
Fig. 3 represents the structure of the antenna assembly of the embodiment of the invention 3.
Fig. 4 represents the structure of the antenna assembly of the embodiment of the invention 4.
Fig. 5 represents the structure of the antenna assembly of the embodiment of the invention 5.
Fig. 6 represents the structure of the mobile phone of the embodiment of the invention 6.
Fig. 7 represents the structure of the mobile phone of the embodiment of the invention 7.
Fig. 8 is the concept map of antenna assembly in the past.
Fig. 9 is the stereogram of a part that has excised the back side of the mobile phone that has carried antenna assembly in the past.
Following brief description reference numeral.
10,25-first antenna element; The 11-first emission conductor element; 12, the 24-second emission conductor element; The 13-short-circuiting terminal; The 14-supply terminals; 15,42-high-frequency circuit portion; The 16-power supply terminal; 17-conductor floor; 18-second antenna element; 19,19A, 19B, 23,26,31,33-antenna assembly; 20-third antenna element; 21-launches conductor element; 22,44A, 44B-terminal; 27,34,39-mobile phone main body; 28,35,40-housing; 29,36,41-printed circuit board (PCB); 30,37-ground configurations portion; The 32-match circuit; 38-electric power-feeding structure portion; The 43-switch.
Embodiment
Below, use Fig. 1～Fig. 7 that the embodiment of the invention is described.
(embodiment 1)
Below, use embodiment 1 to be illustrated with regard to the present invention.
Fig. 1 represents the structure of the antenna assembly of the embodiment of the invention 1.
In Fig. 1, first antenna element 10 constitutes by conducting metals such as copper, copper alloy, aluminium alloy, stainless steels or to the lamellar conductor that conducting metal has carried out the plating of conductive metal such as Au, Ni.
In first antenna element 10, the first emission conductor element 11 and the second emission conductor element 12 form at grade.The first emission conductor element 11 is in the GSM frequency band, approximately with 1/4 wavelength resonances.The second emission conductor element 12 is in the GSM frequency band, approximately with 1/4 wavelength resonances.Common port at the first emission conductor element 11 and the second emission conductor element 12 has formed short-circuiting terminal 13 in the direction of vertical lower.In addition, power supply terminal 16 is positioned at the public supply terminals 14 that near the short-circuiting terminal 13 first emission conductor elements 11 and second are launched conductor element 12.Power supply terminal 16 has been electrically connected the high-frequency circuit portion 1 of wireless device.
The below of the conductor floor 17 and first antenna element 10 keeps given interval, and is configured to and first antenna element, 10 almost parallels.Conductor floor 17 has been electrically connected the short-circuiting terminal 13 of first antenna element 10.Conductor floor 17 constitutes by conducting metals such as copper, copper alloy, aluminium alloy, stainless steels or to the lamellar conductor that conducting metal has carried out the plating of conductive metal such as Au, Ni.
In addition, second antenna element 18 does not directly link to each other with them between first antenna element 10 and conductor floor 17, has kept given interval, is configured to almost parallel.This second antenna element is also same with first antenna element 10 and conductor floor 17, constitutes by conducting metals such as copper, copper alloy, aluminium alloy, stainless steels or to the lamellar conductor that conducting metal has carried out the plating of conductive metal such as Au, Ni.
In addition, use the resin dielectric material (not shown) of desirable dielectric constant, low dielectric loss, by fixing with embedding inlay technique, make first antenna element 10, conductor floor 17 and second antenna element 18 keep described configuration, just constituted antenna assembly 19.
Below, the action of the antenna assembly 19 that has adopted above structure is described.
As shown in Figure 1, antenna assembly 19 is by constituting with the lower part: launch first antenna element 10 that conductor element 12, short-circuiting terminal 13 and power supply terminal 16 constitute by the first emission conductor element 11, second; Conductor floor 17; Be configured in second antenna element 18 between first antenna element 10 and the conductor floor 17.This antenna assembly 19 is commonly referred to as tabular inverse F antenna.
In this antenna assembly 19,, determined following size in order to obtain the desirable resonance frequency and the impedance operator of GSM frequency band.
1) is formed on the short-circuiting terminal 13 of first antenna element 10 and the length L 1 between the power supply terminal 16;
2) from the length L 2 of the open end of power supply terminal 16 to first emission conductor elements 11;
3) length L 3 of second antenna element 18;
4) interval on first antenna element 10 and conductor floor 17.
The input impedance characteristic is main to be the relation of electromagnetic coupled of the interval determination of the relation of L1 and L2 and first antenna element 10 and second antenna element 18 according to the position by power supply terminal 16.By adjusting these sizes and relation, the desirable resonance frequency in the high-frequency circuit portion 15 of mobile phone obtains coupling with impedance 50 Ω.
Below, determined the resonance frequency and the impedance operator of PCN frequency band with following size.
1) is formed on the short-circuiting terminal 13 of first antenna element 10 and the length L 1 between the power supply terminal 16;
2) from the length of the length L 4 of the open end of power supply terminal 16 to second emission conductor elements 12.
This input impedance characteristic is the relation of L1 and L4 based on the position of power supply terminal 16 mainly.
In addition, when receiving, the electromagnetic signal electric power of the desirable resonance frequency that receives from antenna assembly 19 is transformed to the signal of telecommunication, is input to by the power supply terminal 16 that is formed on first antenna element 10 in the high-frequency circuit portion 15 of mobile phone main body.
In addition, when sending,, sent the signal of telecommunication of the signal electric power of high-frequency circuit portion 15, after antenna assembly 19 becomes electromagnetic wave, be launched with flow process opposite when receiving.
At this, the relation on first antenna element 10, second antenna element 18 and conductor floor 17 is described.
Its result, the impedance operator performance capacitive character of first antenna element 10 and second antenna element 18.This becomes the main cause of the resonance frequency that improves antenna assembly 19.On the other hand, only leave short-circuiting terminal 13 by the position that makes power supply terminal 16 and give set a distance, just can be in this impedance operator the additional electrical perception, eliminate reactive component, almost can obtain mate with impedance 50 Ω.
Like this, according to the antenna assembly of present embodiment, can easily set the interval of the width of respectively launching conductor element, length and first antenna element 10 and second antenna element 18 of the distance of short-circuiting terminal 13 and power supply terminal 16, tabular first antenna element 10 and second antenna element 18.
By utilizing the electromagnetic coupled of first antenna element 10 and second antenna element 18, just can easily obtain corresponding with the desirable frequency band rightly corresponding impedance operator of impedance operator, can realize the broad in band and the high sensitivityization of antenna assembly.In addition, can make antenna assembly adopt small-sized and simple structure.
It should be noted that,, can also obtain the impedance operator corresponding with the 3rd frequency band except GSM frequency band and PCN frequency band.Therefore, suppress influence to the impedance operator of GSM frequency band and PCN frequency band on one side, the interval of conductor width, length L 3 and first antenna element 10 and second antenna element 18 of setting second antenna element 18 on one side is just passable.
It should be noted that, about the adjustment of each above size and position relation, because antenna element is tabular, so can easily set following size.
1) distance of the first terminal and second terminal; 2) emission conductor element width, the length of first antenna element and second antenna element; 3) interval of first antenna element and second antenna element etc.
In addition, can constitute the conductor part of described antenna assembly 19 by various conductor formation methods such as printing, sintering, overlapping, plating.
(embodiment 2)
Fig. 2 represents the structure of the antenna assembly of the embodiment of the invention 2.In Fig. 2, third antenna element 20 is with on the given first emission conductor element 11 that is disposed on first antenna element 10.Third antenna element 20 constitutes by conducting metals such as copper, copper alloy, aluminium alloy, stainless steel alloies or to the lamellar conductor that described conducting metal has carried out the plating of conductive metal such as Au, Ni.
At this, third antenna element 20 forms with about 3/8 wavelength resonances or with the emission conductor element 21 of the length of about 5/8 wavelength resonances in the GSM frequency band.At the one end, formed near the terminal 22 of the supply terminals 14 of the first emission conductor element 11 that is connected electrically in first antenna element 10.
Other structure has just constituted antenna assembly 23 similarly to Example 1.
In embodiment 1, obtain to obtain the frequency band of the necessary characteristic in the GSM frequency band with first antenna element 10 and second antenna element 18.In the structure of present embodiment,, can make the frequency band that obtains the necessary characteristic in the GSM frequency band further broadband except the characteristic that obtains among the embodiment 1.
Main by the electromagnetic coupled between third antenna element 20 and first antenna element 10 and the conductor floor 17, make frequency characteristic performance crevasse characteristic, realized that this is broadband.
In addition, except third antenna element 20, also on first antenna element 10 and the second emission conductor element 12, be formed in the PCN frequency band emission conductor element with the length of about 3/8 wavelength or about 5/8 wavelength resonances.In view of the above, with described same,, can make frequency characteristic performance crevasse characteristic, thereby can further make the frequency band of PCN frequency band broadband by electromagnetic coupled.
It should be noted that,, adjust following value and just can obtain the impedance corresponding with the 3rd frequency band except GSM frequency band and PCN frequency band.
1) conductor width of third antenna element 20, length; 2) interval of first antenna element 10 and third antenna element 20.
Its result, obtained with three high antenna assemblies of broadband medium sensitivity that frequency band is corresponding.
As previously discussed, by disposing tabular third antenna element, utilize the electromagnetic coupled each other of third antenna element and electrically-conducting floor from first antenna element.In view of the above, the impedance corresponding can be more easily obtained, broadband and high sensitivity can be realized with desirable frequency band.Also can obtain the antenna assembly of small-sized and simple structure at this.
(embodiment 3)
Fig. 3 represents the structure of the antenna assembly of the embodiment of the invention 3.
In embodiment 1, the second tabular emission conductor element 12 is formed on first antenna element 10 of antenna assembly 19.
In the present embodiment, as shown in Figure 3, replace the second tabular emission conductor element 12, be provided with the second emission conductor element 24 of approximate zigzag fashion, formed first antenna element 25.Same with described embodiment 1 in addition, just constituted big line apparatus 26.
In this structure, because the second emission conductor element 24 is for approximate zigzag, so can easily set, adjust length, the width of emitter.Therefore, first antenna element 25 can be set at the higher impedance operator corresponding with desirable frequency band of precision by the setting of the impedance among the embodiment 1.
As previously discussed, because antenna element is tabular and is approximate zigzag fashion, or nearly meander-like, so that following size is set is easier.
1) distance of the first terminal and second terminal; 2) emission conductor element width, the length of first antenna element and second antenna element; 3) interval of first antenna element and second antenna element etc.
Also utilized the electromagnetic coupled each other on first antenna element and second antenna element and conductor floor.In view of the above, can obtain the impedance operator corresponding efficiently, can realize broadband and high sensitivityization with desirable frequency band.In addition, can obtain the antenna assembly of small-sized and simple structure.
(embodiment 4)
Fig. 4 represents the structure of the antenna assembly of the embodiment of the invention 4.
In embodiment 1, used conductor floor 17.
In the present embodiment, as shown in Figure 4, replace conductor floor 17, utilized ground configurations portion 30 on the printed circuit board (PCB) 29 in the housing 28 that is formed on mobile phone main body 27 as the conductor floor.The short-circuiting terminal 13 that is formed on first antenna element 10 has been electrically connected ground configurations portion 30 by methods such as pressure welding, solderings.With it, power supply terminal 16 has been electrically connected mobile phone main body 27 high-frequency circuit portions 15 by methods such as pressure welding, solderings.So just constituted antenna assembly 31.Same with described embodiment 1 in addition.
In this structure, utilize the ground configurations portion 30 on the printed circuit board (PCB) 29 in the housing 28 of mobile phone main body 27 to constitute the conductor floor.In addition, also can use the conductor floor of wireless device main body as the conductor floor.
Therefore, on the basis of the effect of embodiment 1, improved the degree of freedom in the place of method that first antenna element 10 and second antenna element 18 carry to mobile phone main body 27 and lift-launch.Promptly improved the degree of freedom of antenna assembly 31 to the lift-launch of mobile phone main body 27.Therefore, can help the miniaturization of mobile phone.
(embodiment 5)
Fig. 5 represents the structure of the antenna assembly of the embodiment of the invention 5.
In the antenna assembly 33 of present embodiment, the power supply terminal 16 of first antenna element 10 that is formed on the antenna assembly 19 of embodiment 1 has been electrically connected match circuit 32.Same with described embodiment 1 in addition.
According to this structure,, in desirable frequency band, can easily set the careful impedance operator of antenna assembly 33 by match circuit 32.
Same with the embodiment that has described, broadband, the high sensitivityization of antenna assembly can be realized, and miniaturization can be realized.
In the present embodiment, formed match circuit 32, also can obtain same effect but form at short-circuiting terminal 13 in power supply terminal 16 1 sides of antenna assembly 33.
Like this, in the present embodiment,, can easily obtain the high-precision impedance matching with the high-frequency circuit portion of wireless device main body, obtain the impedance operator corresponding efficiently with desirable frequency band by match circuit.Same with the embodiment that has described, can realize broadband, high sensitivityization.
(embodiment 6)
Fig. 6 represents the structure of the mobile phone of the embodiment of the invention 6.
In the present embodiment, as shown in Figure 6, the plane is formed at the top of the housing 35 of mobile phone main body.In housing 35, disposed printed circuit board (PCB) 36, with it the upper surface configured in parallel use the antenna assembly 19 of the described embodiment 1 that Fig. 1 illustrated.The conductor floor 17 of this antenna assembly 19 is replaced by the ground configurations portion 37 on the printed circuit board (PCB) of representing with Fig. 6 that is formed on mobile phone main body 34 36.
In addition, in mobile phone main body 34, power supply terminal 16 has been electrically connected near the electric power-feeding structure portion 38 the ground configurations portion 37 that is formed on printed circuit board (PCB) 36 by methods such as pressure welding, solderings.
According to this structure, on the basis of the effect of embodiment 1, from mechanical surge protection the housing of mobile phone main body 34.
Like this, just can realize the long lifetime of antenna assembly 19.Meanwhile, because do not need the match circuit of the impedance operator coupling usefulness of desirable frequency band, so can reduce the cost of mobile phone.
As previously discussed, by can be in the impedance operator that does not have easily to set under the situation of match circuit desirable frequency band, and broadband, the highly sensitive high small-sized slim antenna assembly of productivity, can obtain high performance wireless device.Meanwhile, from mechanical surge protection antenna assembly.
In addition, the design freedom height of mobile phone main body is not because need the match circuit of impedance operator coupling usefulness, so can fall the cost of wireless device.
(embodiment 7)
Fig. 7 represents the structure of the walking circuit of the embodiment of the invention 7.
In the present embodiment, as shown in Figure 7, the upper end of the printed circuit board (PCB) 41 in the housing 40 of mobile phone main body 39 has disposed antenna assembly 19A.Disposed antenna assembly 19B in the bottom of printed circuit board (PCB) 41.At this, antenna assembly 19A has adopted identical structure with antenna assembly 19B with the antenna assembly 19 of embodiment 1.
The power supply terminal 16A of antenna assembly 19A and antenna assembly 19B and 16B have been electrically connected the terminal 44A and the 44B of switch 43 of the high-frequency circuit portion 42 of mobile phone main body 39 respectively by methods such as pressure welding, solderings.
In addition, with described same, the part of conductor floor 17A and 17B has been electrically connected the ground configurations portion 45 on the printed circuit board (PCB) 41 that is formed on mobile phone main body 39.
In the mobile phone of present embodiment, compared the level of the reception electric power of antenna assembly 19A and antenna assembly 19B.Receive big antenna assembly and the high-frequency circuit portion 42 of electric power by connecting, constituted diversity communication device.
According to this structure, from mechanical surge protection the housing 40 of mobile phone main body 39.In view of the above, can make the life-span of antenna assembly 19A and 19B elongated.Meanwhile, by using the diversity communication mode, the human body in the time of suppressing to use mobile phone can obtain the excellent communications quality to the influence of the transmission receptivity of electric wave.
It should be noted that,, can improve the diversity communication performance by described two antenna assembly 19A and 19B being configured to the position relation of orthogonal direction.
In addition, by Built-in antenna apparatus, can improve the design freedom of mobile phone main body 39.Because do not need the match circuit of impedance operator coupling usefulness, so can fall the cost of wireless device.
As previously discussed, in this wireless device, do not having under the situation of match circuit, the impedance operator of desirable frequency band can easily be set.In addition, this wireless device carried two broadbands, highly sensitive, productivity is high and small-sized slim antenna assembly.Therefore, by the housing of wireless device, can be from mechanical surge protection antenna assembly.Meanwhile, can improve the design freedom of wireless device main body.Because do not need the match circuit of impedance operator coupling usefulness, so can fall the cost of wireless device.In addition, by the diversity feature of two antenna assemblies,, the big antenna assembly of reception electric power is worked even weak electric field also can compare two antenna assemblies.In view of the above, can improve wireless device with good speech quality.
Utilizability on the industry
As previously discussed, according to the present invention, can realize small-sized slim, broadband, high-sensitivity, Multiband, can provide the productivity that can easily carry out impedance matching high can be built-in day traditional thread binding Put.
In addition, by built-in antenna assembly of the present invention in wireless device, can be from from the outside Protect antenna assembly under the mechanical shock. Simultaneously, make the corresponding multiband of wireless device energy, can realize wide Band, high sensitivity.
In addition, the antenna assembly equipped section in the wireless device divides required space to diminish. Accordingly, can Hope the small-sized slimming that realizes wireless device. Meanwhile, easily obtain and desirable frequency band Corresponding impedance operator. Therefore, need to be by LC element structure in the high-frequency circuit section of wireless device The impedance matching circuit of the complexity that becomes, thus cheap wireless device can be provided.
Claims (7)
1. antenna assembly comprises:
(a) conductor floor;
(b) tabular first antenna element, the upside that it is configured in described conductor floor comprises:
I) the first terminal on the described conductor of electrical connection floor,
Ii) leave described the first terminal and give second terminal of input and output set a distance, that be used for signal,
Iii) launch conductor element,
Length L 1 between described the first terminal and described second terminal is adjustable, and the length L 2 from described second terminal to the open end of described emission conductor element is adjustable;
(c) tabular second antenna element, its length L 3 is adjustable, has and other emission conductor element of described conductor floor and non-at least one that electrically contacts of described first antenna element;
Described at least one other the emission conductor element of described second antenna element is configured between described conductor floor and described first antenna element, each that keeps described first antenna element, described second antenna element, described conductor floor by medium at interval,
By adjusting described L1, L2, L3, described first antenna element, described second antenna element, one or more resonance frequencys that obtain expecting and impedance operator in the interval of described conductor floor between each.
2. antenna assembly according to claim 1 also comprises:
Tabular third antenna element with at least one emission conductor element.
3. antenna assembly according to claim 1,
Described at least one other the emission conductor element of the described emission conductor element of described first antenna element or described second antenna element is zigzag fashion or meander-shaped.
4. antenna assembly according to claim 1,
The conductor floor of use wireless device or ground connection are as described conductor floor.
5. antenna assembly according to claim 1,
On described second terminal of described first antenna element, in conjunction with the match circuit that constitutes by at least one reactance component.
6. wireless device,
Comprise the described antenna assembly of claim 1;
The described conductor floor of described antenna assembly or described the first terminal combine with the conductor floor or the ground wire electricity of wireless device, and described second terminal combines with the high-frequency circuit portion electricity of described wireless device.
7. wireless device,
Comprise two described antenna assemblies of claim 1;
The described conductor floor separately of described two antenna assemblies or described the first terminal combine with the conductor floor or the ground wire electricity of wireless device, and described second terminal separately of described two antenna assemblies combines with the high-frequency circuit portion of described wireless device is electric, uses described two antenna assemblies to carry out diversity communication.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP131885/2001 | 2001-04-27 | ||
| JP2001131885A JP2002330023A (en) | 2001-04-27 | 2001-04-27 | Antenna unit and radio apparatus using the same |
| JP131885/01 | 2001-04-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1462493A CN1462493A (en) | 2003-12-17 |
| CN1266803C true CN1266803C (en) | 2006-07-26 |
Family
ID=18979991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02801452 Expired - Fee Related CN1266803C (en) | 2001-04-27 | 2002-04-24 | Antenn device and radio apparatus using it |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2002330023A (en) |
| CN (1) | CN1266803C (en) |
| DE (1) | DE10292326T5 (en) |
| WO (1) | WO2002089255A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11380997B2 (en) | 2019-10-29 | 2022-07-05 | Japan Aviation Electronics Industry, Limited | Antenna |
| US11626664B2 (en) | 2019-10-29 | 2023-04-11 | Japan Aviation Electronics Industry, Limited | Antenna |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003318639A (en) * | 2002-02-20 | 2003-11-07 | Matsushita Electric Ind Co Ltd | Antenna device |
| JP2004215149A (en) * | 2003-01-08 | 2004-07-29 | Matsushita Electric Ind Co Ltd | Antenna |
| CN100346533C (en) * | 2003-09-17 | 2007-10-31 | 富士康(昆山)电脑接插件有限公司 | Multifrequence antenna |
| JP4002553B2 (en) * | 2003-12-26 | 2007-11-07 | アンテン株式会社 | antenna |
| DE602005008193D1 (en) * | 2004-03-04 | 2008-08-28 | Murata Manufacturing Co | ANTENNA DEVICES AND THE SAME USING WIRELESS COMMUNICATION DEVICE |
| JP4721272B2 (en) * | 2005-10-04 | 2011-07-13 | 株式会社ヨコオ | Dielectric antenna |
| EP1939984A4 (en) * | 2005-10-17 | 2008-12-17 | Nec Corp | Antenna unit and communication device |
| CN1956259B (en) * | 2005-10-26 | 2010-11-17 | 启碁科技股份有限公司 | Antenna |
| KR100742097B1 (en) * | 2006-03-20 | 2007-07-24 | 주식회사 이엠따블유안테나 | Dual-band antenna for receiving vhf and uhf signal |
| KR100915788B1 (en) | 2007-09-19 | 2009-09-07 | 한밭대학교 산학협력단 | Dvb-h antenna |
| JP2010004470A (en) * | 2008-06-23 | 2010-01-07 | Alps Electric Co Ltd | Antenna device |
| US8098205B2 (en) * | 2009-05-05 | 2012-01-17 | Flextronics Automotive Inc. | GPS, GSM, and wireless LAN antenna for vehicle applications |
| US8212735B2 (en) * | 2009-06-05 | 2012-07-03 | Nokia Corporation | Near field communication |
| JP5875871B2 (en) | 2012-01-05 | 2016-03-02 | 船井電機株式会社 | Antenna device and communication device |
| KR101926549B1 (en) * | 2012-07-23 | 2019-03-12 | 엘지이노텍 주식회사 | Antenna apparatus |
| JP6098812B2 (en) * | 2013-05-30 | 2017-03-22 | 三菱マテリアル株式会社 | Antenna device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6047502A (en) * | 1983-08-26 | 1985-03-14 | Nippon Telegr & Teleph Corp <Ntt> | Portable diversity radio equipment |
| JPH0314813U (en) * | 1989-06-27 | 1991-02-14 | ||
| JPH0758539A (en) * | 1993-08-13 | 1995-03-03 | Matsushita Electric Ind Co Ltd | Microstrip antenna |
| JPH1093332A (en) * | 1996-09-13 | 1998-04-10 | Nippon Antenna Co Ltd | Dual resonance inverted-f shape antenna |
| JP2000068736A (en) * | 1998-08-21 | 2000-03-03 | Toshiba Corp | Multi-frequency antenna |
| JP2000261243A (en) * | 1999-03-04 | 2000-09-22 | Nippon Antenna Co Ltd | Inverted f-type antenna |
| JP2000261233A (en) * | 1999-03-05 | 2000-09-22 | Matsushita Electric Ind Co Ltd | Antenna system |
| JP3656470B2 (en) * | 1999-08-12 | 2005-06-08 | 株式会社村田製作所 | Frequency switching structure of surface mount antenna and communication device having the structure |
-
2001
- 2001-04-27 JP JP2001131885A patent/JP2002330023A/en active Pending
-
2002
- 2002-04-24 WO PCT/JP2002/004077 patent/WO2002089255A1/en active Application Filing
- 2002-04-24 DE DE10292326T patent/DE10292326T5/en not_active Withdrawn
- 2002-04-24 CN CN 02801452 patent/CN1266803C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11380997B2 (en) | 2019-10-29 | 2022-07-05 | Japan Aviation Electronics Industry, Limited | Antenna |
| TWI770602B (en) * | 2019-10-29 | 2022-07-11 | 日商日本航空電子工業股份有限公司 | Antenna |
| US11626664B2 (en) | 2019-10-29 | 2023-04-11 | Japan Aviation Electronics Industry, Limited | Antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2002089255A1 (en) | 2002-11-07 |
| JP2002330023A (en) | 2002-11-15 |
| CN1462493A (en) | 2003-12-17 |
| DE10292326T5 (en) | 2004-04-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060726 Termination date: 20100424 |