CN107919883A - A kind of antenna assembly and mobile unit applied to mobile unit - Google Patents
A kind of antenna assembly and mobile unit applied to mobile unit Download PDFInfo
- Publication number
- CN107919883A CN107919883A CN201711114994.XA CN201711114994A CN107919883A CN 107919883 A CN107919883 A CN 107919883A CN 201711114994 A CN201711114994 A CN 201711114994A CN 107919883 A CN107919883 A CN 107919883A
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- Prior art keywords
- transceiver
- cable
- mobile unit
- antenna assembly
- port
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Classifications
-
- 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
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3822—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving specially adapted for use in vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
- H01Q1/3208—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used
-
- 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
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
Abstract
The embodiment of the present application discloses a kind of antenna assembly and mobile unit applied to mobile unit, the antenna assembly includes RF transceiver and cable, wherein, the first equipment outside mobile unit is used to transmit direct current signal to the first port of the RF transceiver by the cable, and the antenna assembly further includes separated by direct communication circuit；The second port of the RF transceiver is electrically connected by the separated by direct communication circuit with the cable, so that the RF transceiver passes through the cable transceiving radio frequency signal.Compared with prior art, the existing cable multiplexing for connecting the first equipment and RF transceiver and being used for transmission direct current signal is antenna by the application, without additionally setting antenna also to realize the function of transceiving radio frequency signal, do not interfere with the function of the existing transmission direct current signal of cable also at the same time, avoid the antenna additionally set in the prior art due to taking mobile unit inner space or taking problem caused by inner space of vehicle.
Description
Technical field
This application involves field of antenna, more particularly to a kind of antenna assembly and mobile unit applied to mobile unit.
Background technology
Radio frequency (RF, Radio Frequency) is referred to as RF radio frequencies, i.e. radio-frequency current, is a kind of high-frequency ac change electricity
The abbreviation of magnetic wave.At present, RF transceiver is typically provided with mobile unit, specifically, RF transceiver can by antenna
With transceiving radio frequency signal, so as to fulfill radio-frequency enabled, such as FM broadcast received by mobile unit, is realized and led by mobile unit
Boat etc..Wherein, the performance for the radiofrequency signal that mobile unit is received and dispatched by antenna can directly affect the radio-frequency enabled of mobile unit, example
The quality of audio and video played can be such as influenced, or influences the accuracy of navigation.
In the prior art, antenna set-up mode common in mobile unit is：Built-in one individually in mobile unit
Conducting wire is as antenna or a built-in FPC (Flexible Printed Circuit, flexible PCB) antenna, so as to fulfill radio frequency
The transmitting-receiving of signal.However, built-in antenna can take the inner space of mobile unit, further, due in mobile unit
Portion space is limited, and built-in antenna is typically not capable of the length needed for transceiving radio frequency signal, can thus influence antenna transmitting-receiving and penetrate
The performance of frequency signal, and then the radio-frequency enabled of mobile unit can be influenced, reduce user experience.In order to enable antenna can reach receipts
The length needed for radiofrequency signal is sent out, in the prior art also a kind of antenna set-up mode, i.e., one is set outside mobile unit
Single conducting wire is as antenna, so as to fulfill the transmitting-receiving of radiofrequency signal.So the length of antenna would not be subject in mobile unit
The limitation in portion space, still, the conducting wire set outside mobile unit need to take the inner space of automobile, while can also be related to
The problem of to wire arrangements, once the bad interior trim effect that can also influence automobile of arrangement.
The content of the invention
This application provides a kind of antenna by for the cable multiplexing to RF transceiver transmission direct current signal for antenna
Device, particularly provides a kind of antenna assembly and mobile unit applied to mobile unit, existing in the prior art to solve
The above problem.
In a first aspect, the embodiment of the present application provides a kind of antenna assembly applied to mobile unit, including radio-frequency receiving-transmitting
Device and cable, wherein, the first equipment outside mobile unit is used for the to the RF transceiver by the cable
One end port transmission direct current signal, the antenna assembly further include separated by direct communication circuit；
The second port of the RF transceiver is electrically connected by the separated by direct communication circuit with the cable, so that described
RF transceiver passes through the cable transceiving radio frequency signal.
It is preferred that the antenna assembly further includes signal choke circuit, the first port of the RF transceiver is series at
And between the point being electrically connected in the cable with the separated by direct communication circuit, for stopping that the radiofrequency signal is penetrated described in entering
The first port of frequency transceiver.
It is preferred that in the cable, it is connected with the point that the separated by direct communication circuit is electrically connected to first equipment
Point between length for the radiofrequency signal wavelength a quarter.
It is preferred that the antenna assembly further includes bandwidth-limited circuit, the second port of the RF transceiver is series at
Between the separated by direct communication circuit, for filtering out the radiofrequency signal beyond required frequency range.
It is preferred that the antenna assembly further includes anti-static circuit, it is series in the cable and separated by direct communication electricity
Between point and ground that road is electrically connected.
It is preferred that the signal choke circuit is including at least one of following：Magnetic bead, resistance, inductance.
Second aspect, the embodiment of the present application provide a kind of mobile unit, and the mobile unit is included such as first aspect institute
The antenna assembly stated.
It is preferred that the first port is supply port, the mobile unit further includes peripheral module, the peripheral module
Supply port be electrically connected with the first port of the RF transceiver by the cable.
It is preferred that the peripheral module is camera, the mobile unit is automobile data recorder.
It is preferred that the peripheral module is ultrasonic sensor, the mobile unit is radar for backing car.
The antenna assembly applied to mobile unit that the application provides includes RF transceiver, cable and separated by direct communication electricity
Road, wherein, the first equipment outside mobile unit is used to transmit to the first port of RF transceiver by the cable
Direct current signal.By existing connection the first equipment and RF transceiver and the cable multiplexing of direct current signal is used for transmission in the application
For antenna, specifically, the second port of RF transceiver is electrically connected by separated by direct communication circuit with cable, so that RF transceiver
Pass through cable transceiving radio frequency signal.Firstly, since separated by direct communication circuit has the function that blocking circulation exchange, therefore the first equipment
Obstructed, and penetrate by separated by direct communication circuit before the second port of RF transceiver is entered by the direct current signal of cable transmission
Frequency signal is AC signal, it can enter the second port of RF transceiver, so that RF transceiver can be received normally
Signal.Secondly, the radiofrequency signal received and dispatched by cable is high frequency (300KHz-300GHz) signal, and high-frequency signal is to direct current
What signal influence almost without, therefore the first port that the radiofrequency signal in cable will not be to the first equipment to RF transceiver
The direct current signal of transmission has an impact, i.e., the first port of RF transceiver can normally receive the first equipment and be passed by cable
Defeated direct current signal.
By existing connection the first equipment and RF transceiver and the cable multiplexing of direct current signal is used for transmission in the application
For antenna, specifically, the first equipment can transmit direct current signal by cable to RF transceiver, meanwhile, RF transceiver is also
Cable transceiving radio frequency signal can be utilized, the two is independent of each other.Compared with prior art, the application is without additionally setting antenna
It can realize the function of transceiving radio frequency signal, while not interfere with the function of the existing transmission direct current signal of cable also, pass through multiplexing
The mode of cable improves its utilization rate, and it is empty inside mobile unit due to taking to avoid the antenna additionally set in the prior art
Between or take inner space of vehicle caused by problem.
Brief description of the drawings
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
Other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is provided by the embodiments of the present application a kind of applied to the antenna assembly of mobile unit and the connection knot of the first equipment
Structure schematic diagram；
Fig. 2 is the connection of another antenna assembly and the first equipment for being applied to mobile unit provided by the embodiments of the present application
Structure diagram；
Fig. 3 be it is provided by the embodiments of the present application another be applied to mobile unit antenna assembly and the first equipment connection
Structure diagram；
Fig. 4 is provided by the embodiments of the present application a kind of applied to the antenna assembly of mobile unit and the connection knot of the first equipment
Structure schematic diagram；
Fig. 5 is a kind of structure diagram of antenna assembly applied to mobile unit provided by the embodiments of the present application；
Fig. 6 is the attachment structure schematic diagram of a kind of mobile unit provided by the embodiments of the present application and the first equipment；
Fig. 7 is the attachment structure schematic diagram of another mobile unit provided by the embodiments of the present application and the first equipment；
Fig. 8 is the attachment structure schematic diagram of another mobile unit provided by the embodiments of the present application and the first equipment.
Embodiment
It is in order to make those skilled in the art better understand the technical solutions in the application, real below in conjunction with the application
The attached drawing in example is applied, the technical solution in the embodiment of the present application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.It is common based on the embodiment in the application, this area
Technical staff's all other embodiments obtained without making creative work, should all belong to the application protection
Scope.
Referring to Fig. 1, a kind of structural frames of antenna assembly applied to mobile unit provided by the embodiments of the present application are shown
Figure.As shown in Figure 1, antenna assembly includes RF transceiver, separated by direct communication circuit and cable.
Wherein, the first equipment outside mobile unit is used to transmit to the first port of RF transceiver by cable
Direct current signal.The second port of RF transceiver is electrically connected by separated by direct communication circuit with cable, so that RF transceiver passes through
Cable transceiving radio frequency signal.
From figure 1 it appears that first equipment of one end connection of cable outside mobile unit, other end connection are penetrated
The first port of frequency transceiver, and the second port of RF transceiver is also connected on cable by separated by direct communication circuit.This reality
Apply position of the point for being electrically connected separated by direct communication circuit with cable in example on cable to be not construed as limiting, be specifically as follows on cable
Any point.
In the present embodiment, by setting separated by direct communication circuit between the second port of RF transceiver and cable, realize
Cable multiplexing by the first equipment of existing connection and RF transceiver is antenna so that RF transceiver can pass through cable
Transceiving radio frequency signal.Specifically, since separated by direct communication circuit has the function that blocking circulation exchange, the first equipment passes through line
The direct current signal of cable transmission is obstructed by separated by direct communication circuit, and the radiofrequency signal only exchanged can enter the of RF transceiver
Two-port netwerk, so that RF transceiver can normal receiving and transmitting signal.
In addition, the radiofrequency signal in cable will not influence the first equipment transmits direct current to the first port of RF transceiver
Signal.Specifically, the radiofrequency signal received and dispatched by cable is high frequency (such as 100MHz) signal, and high-frequency signal is to direct current signal
What influenced almost without, therefore the radiofrequency signal in cable will not transmit the first equipment to the first port of RF transceiver
Direct current signal have an impact, i.e., the first port of RF transceiver still can normally receive the first equipment and be passed by cable
Defeated direct current signal.
In a kind of optional embodiment, the first port of RF transceiver is supply port, correspondingly, positioned at vehicle-mounted
First equipment of device external can be power-supply device.At this time, this cable is power cord, and power-supply device is by power cord to penetrating
The supply port transmission d. c. voltage signal of frequency transceiver, i.e. power-supply device are powered by power cord to RF transceiver.This reality
Apply in example, existing power cord in antenna assembly is multiplexed with antenna so that RF transceiver is believed by power cord transceiving radio frequency
Number.
In optional another embodiment, the first port of RF transceiver port in order to control, correspondingly, positioned at car
The first equipment for carrying device external can be the control device that control instruction is sent to RF transceiver.Wherein, the control of transmission
Instruct as direct current signal.For example, control device can send the target frequency bands of radiofrequency signal to RF transceiver, i.e., due-in
Send out the frequency range of radiofrequency signal；Control device can also be sent to RF transceiver receives enable signal or transmission enable signal,
When RF transceiver receives the reception enable signal of control device transmission, RF transceiver is believed by cable reception radio frequency
Number, when RF transceiver receives the transmission enable signal of control device transmission, RF transceiver sends radio frequency by cable
Signal.
It is to be appreciated that the second port of RF transceiver is the transmitting-receiving port of radiofrequency signal.
It should be noted that separated by direct communication circuit is the custom circuit of this area, generally use resonant capacitance is realized.Tool
Body, due to the radiofrequency signal of RF transceiver transmitting-receiving be 300KHz-300GHz high-frequency signal, in the present embodiment
Separated by direct communication circuit is realized using high-frequency resonant capacitance, such as can use resonant frequency as 87.5MHz-108MHz, capacitance
For the resonant capacitance of 100pF-10nF.The resonant frequency of resonant capacitance and the size of capacitance are usually penetrated by RF transceiver transmitting-receiving
The frequency of frequency signal determines.For example, the frequency for the radiofrequency signal that mobile unit is received and dispatched by antenna is 100MHz, therefore, can
To select resonant capacitance of the resonant frequency as 100MHz, capacitance for 4700pF.
When RF transceiver is by cable transceiving radio frequency signal, the radiofrequency signal in cable can not only enter radio-frequency receiving-transmitting
The second port of device, while can also enter the first port of RF transceiver.Although the radiofrequency signal into first port will not
Influence RF transceiver and receive direct current signal, but the part energy of radiofrequency signal is divided to first port, can cause to penetrate
The energy loss of frequency signal.It is split in order to avoid the energy of radiofrequency signal, in a kind of optional embodiment, above-mentioned antenna
Device further includes signal choke circuit, as shown in Fig. 2, signal choke circuit is series at the first port and line of RF transceiver
Between the point P being electrically connected in cable with separated by direct communication circuit, for stopping that radiofrequency signal enters the first port of RF transceiver.
In a kind of optional embodiment, above-mentioned signal choke circuit includes at least one of following：Magnetic bead, electricity
Resistance, inductance.Specifically, when the frequency of radiofrequency signal is larger, such as more than 50MHz, high frequency can be absorbed using magnetic bead
Radiofrequency signal, so as to stop that radiofrequency signal enters the first port of RF transceiver.When the frequency of radiofrequency signal is smaller, such as
Less than 50MHz, inductance, resistance can be used or inductance and resistance are connected.Wherein, the impedance of signal choke circuit and radio frequency
The frequency of signal has a direct relation, such as when the frequency of radiofrequency signal is 100MHz, equivalent impedance can be used to be more than 1000
The resistance, inductance or magnetic bead of ohm.
It is to be appreciated that when the length of antenna is a quarter of wavelength of radiofrequency signal, the transmitting and reception of antenna
Transfer efficiency highest.Therefore, in a kind of optional embodiment, in above-mentioned cable, it is electrically connected with separated by direct communication circuit
A quarters of the point P to the length between the point being connected with first equipment for the wavelength of radiofrequency signal.For example, frequency is
The wavelength of the radiofrequency signal of 100MHz is 3 meters, then the length of cable midpoint P to the point being connected with the first equipment is 0.75 meter.
It should be noted that the first port of the entire length of cable, i.e. RF transceiver is to the line between the first equipment
The length of cable, can be adjusted according to actual conditions.Turned to improve RF transceiver by cable transceiving radio frequency signal
Efficiency is changed, can be by the extension of cable if the entire length of existing cable is less than a quarter of radiofrequency signal wavelength
To a quarter for being more than or equal to radiofrequency signal wavelength.Then it is to penetrate by the distance between point being connected in cable with the first equipment
The point of a quarter of frequency signal wavelength is set to point P, and P points are electrically connected with separated by direct communication circuit.
Different mobile units can realize different radio-frequency enableds, such as can realize and receive FM broadcast, can also be real
Now navigation etc., therefore the frequency range of the radiofrequency signal of antenna assembly transmitting-receiving is also just different.When required frequency range and required frequency range with
When outer radiofrequency signal all enters RF transceiver, it may appear that the mutual interference phenomenon of radiofrequency signal.In order to avoid the hair of this phenomenon
Raw, in a kind of optional embodiment, said antenna device further includes bandwidth-limited circuit, as shown in figure 3, bandpass filtering is electric
Road is series between the second port of RF transceiver and separated by direct communication circuit, for filtering out the radio frequency letter beyond required frequency range
Number.Wherein, required frequency range is corresponding with the radio-frequency enabled that mobile unit is realized.Such as the radio frequency that mobile unit A can be realized
Function is navigation, and corresponding required frequency range is 1550MHz-1650MHz.
In a kind of optional embodiment, above-mentioned bandwidth-limited circuit is low-loss, the high frequency being made of capacitance resistance ware
With the double Pi types filter circuits suppressed.In specific implementation process, reference can be made to the structure of bandwidth-limited circuit as shown in Figure 5 is shown
It is intended to.Wherein, separated by direct communication circuit includes resonant capacitance C1, double along RF transceiver into the circuit between resonant capacitance C1
Pi types filter circuit includes inductance L1 and inductance L2, and capacitance C2, capacitance C3, capacitance C4, wherein, one end difference of capacitance C2
Be connected with one end of RF transceiver and inductance L1, one end of capacitance C3 respectively with the other end of inductance L1 and inductance L2 one
End connection, one end of capacitance C4 is connected with the other end of inductance L2 and one end of resonant capacitance C1 respectively, and capacitance C2, C3 and
The other end of C4 is grounded.
In specific implementation process, the energy-storage travelling wave tube such as inductance and capacitance has the voltage or electricity of energy storage characteristic, i.e. its both ends
When undergoing mutation charge and discharge process can occur for stream.And discharge and recharge therefore the alternating current in the circuit reaches certain frequency, i.e.,
Frequency it is identical when, positive counter current will be cancelled.I.e. energy-storage travelling wave tube can play advection to the electric current of specific frequency, from
And have the function that filtering.Therefore filter action can be played using the characteristic of capacitance and inductance, shunt capacitance and series inductance,
By alternately placing the elements such as shunt capacitance C2, capacitance C3, capacitance C4 and series inductance L1, inductance L2 on circuit, formed more
Rank LC low-pass filter circuits, can filter out useless high frequency radio signals.Specifically can according to required frequency range come choose capacitance and
Inductance, allows it to filter out the radiofrequency signal beyond required frequency range.
In addition, in the embodiment of the present application, due between each device in RF transceiver or above-mentioned several embodiments
A part of electrostatic may be produced during the work time, and all usually there are some sensors in the antenna assembly of mobile unit
Part, it is easy to cause the damage of Sensitive Apparatus under the action of electrostatic, therefore, in the embodiment of the present application, additionally provide in addition
One embodiment, i.e., increase anti-static circuit in antenna assembly, as shown in figure 4, anti-static circuit be series in cable with
Between point P and ground that separated by direct communication circuit is electrically connected.
In specific implementation process, above-mentioned anti-static circuit can be two pole of varistor or antistatic in parallel over the ground
Pipe.As shown in figure 5, anti-static circuit is an antistatic diode, one end of above-mentioned antistatic diode forward conducting is electrically connected
To between resonant capacitance C1 and cable, one end of above-mentioned antistatic diode reverse conducting is grounded, so as to play the work of antistatic
With effectively protection of the realization to Sensitive Apparatus in antenna assembly.
The embodiment of the present application also provides a kind of mobile unit, including antenna assembly, antenna assembly include RF transceiver, every
Straight-through alternating current road and cable.
Wherein, the first equipment outside mobile unit is used to transmit to the first port of RF transceiver by cable
Direct current signal.The second port of RF transceiver is electrically connected by separated by direct communication circuit with cable, so that RF transceiver passes through
Cable transceiving radio frequency signal.
In a kind of optional embodiment, the first port of RF transceiver is supply port in antenna assembly, vehicle-mounted
Equipment further includes peripheral module, and the supply port of peripheral module and the supply port of RF transceiver are electrically connected by above-mentioned cable
Connect, as shown in Figure 6.In the present embodiment, the first equipment outside mobile unit is power-supply device, and above-mentioned cable is power supply
Line, power-supply device are powered for RF transceiver and peripheral module at the same time by power cord.In the present embodiment by RF transceiver and
The power supply line of peripheral module is multiplexed with antenna so that RF transceiver can pass through power supply line transceiving radio frequency signal.
It is split in order to avoid the energy of radiofrequency signal, in a kind of optional embodiment, said antenna device is also wrapped
Signal choke circuit is included, as shown in fig. 7, signal choke circuit is series at the supply port of RF transceiver and the confession of peripheral module
Between the tie point of electric port, and the point P being electrically connected in cable with separated by direct communication circuit, for stopping radiofrequency signal into incidence
The supply port of frequency transceiver and the supply port of peripheral module.
It is split in order to avoid the energy of radiofrequency signal, in optional another embodiment, above-mentioned mobile unit is also
Including signal choke circuit, it is located at the outside of said antenna device, as shown in figure 8, signal choke circuit is series at radio frequency receipts
Send out the tie point of the supply port of device and the supply port of peripheral module, and the point being electrically connected in cable with separated by direct communication circuit
Between P, for stopping that radiofrequency signal enters the supply port of RF transceiver and the supply port of peripheral module.
In order to avoid sending the mutual interference phenomenon of radiofrequency signal in RF transceiver, in a kind of optional embodiment,
Said antenna device further includes bandwidth-limited circuit, is series between the second port of RF transceiver and separated by direct communication circuit,
For filtering out the radiofrequency signal beyond required frequency range.Wherein, required frequency range is corresponding with the radio-frequency enabled that mobile unit is realized.
In order to protect the Sensitive Apparatus in antenna assembly, in a kind of optional embodiment, in said antenna device also
Including anti-static circuit, it is series between point P and the ground being electrically connected in cable with separated by direct communication circuit.
In a kind of optional embodiment, above-mentioned peripheral module is camera, and mobile unit is automobile data recorder.Power supply
Equipment is powered for camera and RF transceiver at the same time.Wherein, camera may be mounted at the front windshield of automobile, also may be used
With at the rear seat windscreen of automobile.
In a kind of optional embodiment, above-mentioned peripheral module is ultrasonic sensor, and mobile unit is radar for backing car.
Power-supply device is powered for ultrasonic sensor and RF transceiver at the same time.
In the embodiment of the present application, peripheral module is not limited to camera and ultrasonic sensor, and similarly, mobile unit is not yet
It is limited to automobile data recorder and radar for backing car.
In the embodiment of the present application, by the first equipment of existing connection and RF transceiver and the line of direct current signal is used for transmission
Cable is multiplexed with antenna, and specifically, the first equipment can transmit direct current signal by cable to RF transceiver, meanwhile, radio frequency is received
Hair device can also utilize cable transceiving radio frequency signal, the two is independent of each other.Compared with prior art, the application is without additionally setting
Antenna can also realize the function of transceiving radio frequency signal, while not interfere with the function of the existing transmission direct current signal of cable also, lead to
The mode for crossing multiplexing cable improves its utilization rate, avoids the antenna additionally set in the prior art due to taking mobile unit
Inner space takes problem caused by inner space of vehicle.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make these embodiments other change and modification.So appended claims be intended to be construed to include it is excellent
Select embodiment and fall into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and scope.In this way, if these modifications and changes of the present invention belongs to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to not form to this comprising above-described the application embodiment including these modification and variations
Apply for the restriction of protection domain.
Claims (10)
1. a kind of antenna assembly applied to mobile unit, including RF transceiver and cable, wherein, outside mobile unit
The first equipment be used for by first port from the cable to the RF transceiver transmission direct current signal, it is characterised in that
The antenna assembly further includes separated by direct communication circuit；
The second port of the RF transceiver is electrically connected by the separated by direct communication circuit with the cable, so that the radio frequency
Transceiver passes through the cable transceiving radio frequency signal.
2. antenna assembly according to claim 1, it is characterised in that the antenna assembly further includes signal choke circuit,
Be series at the RF transceiver first port and the cable between the point that is electrically connected with the separated by direct communication circuit,
For stopping that the radiofrequency signal enters the first port of the RF transceiver.
3. antenna assembly according to claim 1, it is characterised in that in the cable, with the separated by direct communication circuit
A quarter of the point of electrical connection to the length between the point being connected with first equipment for the wavelength of the radiofrequency signal.
4. antenna assembly according to claim 1, it is characterised in that the antenna assembly further includes bandwidth-limited circuit,
It is series between the second port of the RF transceiver and the separated by direct communication circuit, for filtering out penetrating beyond required frequency range
Frequency signal.
5. according to the antenna assembly any one of claim 1-4, it is characterised in that the antenna assembly further includes anti-quiet
Circuit, is series between the point and ground being electrically connected in the cable with the separated by direct communication circuit.
6. antenna assembly according to claim 2, it is characterised in that the signal choke circuit include it is following at least
It is a kind of：Magnetic bead, resistance, inductance.
7. a kind of mobile unit, it is characterised in that including the antenna assembly as any one of claim 1-6.
8. mobile unit according to claim 7, it is characterised in that the first end of RF transceiver in the antenna assembly
Mouth is supply port, and the mobile unit further includes peripheral module, the supply port of the peripheral module and the radio-frequency receiving-transmitting
The first port of device is electrically connected by the cable in the antenna assembly.
9. mobile unit according to claim 8, it is characterised in that the peripheral module is camera, described vehicle-mounted to set
Standby is automobile data recorder.
10. mobile unit according to claim 8, it is characterised in that the peripheral module is ultrasonic sensor, described
Mobile unit is radar for backing car.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711114994.XA CN107919883A (en) | 2017-11-13 | 2017-11-13 | A kind of antenna assembly and mobile unit applied to mobile unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711114994.XA CN107919883A (en) | 2017-11-13 | 2017-11-13 | A kind of antenna assembly and mobile unit applied to mobile unit |
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| CN107919883A true CN107919883A (en) | 2018-04-17 |
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| CN201711114994.XA Pending CN107919883A (en) | 2017-11-13 | 2017-11-13 | A kind of antenna assembly and mobile unit applied to mobile unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110544855A (en) * | 2018-05-29 | 2019-12-06 | 鸿富锦精密工业(武汉)有限公司 | power adapter and electronic device including the same |
| CN113169429A (en) * | 2018-12-25 | 2021-07-23 | 住友电气工业株式会社 | Vehicle-mounted transmission system |
| CN113725603A (en) * | 2021-09-30 | 2021-11-30 | 广东美的厨房电器制造有限公司 | Electronic device |
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| CN101257330A (en) * | 2008-03-25 | 2008-09-03 | 京信通信系统（中国）有限公司 | Feeding electric appliance embedded with modem function |
| CN106961842B (en) * | 2009-04-02 | 2013-05-08 | 熊猫电子集团有限公司 | A kind of method of composite signal list cable transmission |
| CN201550105U (en) * | 2009-11-19 | 2010-08-11 | 华为终端有限公司 | Terminal and system using power line as wireless receiving antenna |
| CN102710277A (en) * | 2012-05-24 | 2012-10-03 | 摩比天线技术（深圳）有限公司 | Radio frequency choke device and aerial system comprising same |
| CN103296488A (en) * | 2013-05-30 | 2013-09-11 | 华为技术有限公司 | Feed network device, antenna feed system and base station |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110544855A (en) * | 2018-05-29 | 2019-12-06 | 鸿富锦精密工业(武汉)有限公司 | power adapter and electronic device including the same |
| CN113169429A (en) * | 2018-12-25 | 2021-07-23 | 住友电气工业株式会社 | Vehicle-mounted transmission system |
| CN113169429B (en) * | 2018-12-25 | 2022-04-12 | 住友电气工业株式会社 | Vehicle-mounted transmission system |
| CN113725603A (en) * | 2021-09-30 | 2021-11-30 | 广东美的厨房电器制造有限公司 | Electronic device |
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