CN103050791A - Circuit with multi-antenna compatibility - Google Patents
Circuit with multi-antenna compatibility Download PDFInfo
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- CN103050791A CN103050791A CN201210261127XA CN201210261127A CN103050791A CN 103050791 A CN103050791 A CN 103050791A CN 201210261127X A CN201210261127X A CN 201210261127XA CN 201210261127 A CN201210261127 A CN 201210261127A CN 103050791 A CN103050791 A CN 103050791A
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Abstract
The invention discloses a circuit with multi-antenna compatibility. The circuit comprises a radio frequency (RF) patch antenna-oriented matching design circuit and an RF pulse frequency (PF) antenna matching design circuit, wherein the RF PF antenna matching design circuit is connected with the RF patch antenna-oriented matching design circuit; the RF patch antenna-oriented matching design circuit mainly consists of an antenna signal input matching circuit and a patch antenna matching circuit connected with the antenna signal input matching circuit; and meanwhile, the patch antenna matching circuit is connected with the RF PF antenna matching design circuit through a selective resistor R12. The circuit with the multi-antenna compatibility has the advantages that a patch antenna J201 is provided with the own independent matching circuits, a jumper design is added, and a high-power switch is removed. The bill of material (BOM) cost is reduced.
Description
Technical field
The present invention relates to antenna circuit, specifically refer to be applicable to the circuit of many antennas compatibility.
Background technology
Antenna is to consist of definite shape with plain conductor, metal covering or other dielectric materials, be erected at certain space, to be converted to from the radio-frequency electrical energy that transmitter is fed the electromagnetism wave energy to space radiation, and perhaps the electromagnetism wave energy of spatial will be converted into radio-frequency electrical energy and be transported to the device of receiver.
The kind of antenna is a lot, and in wireless terminal, particularly in the wireless terminal of miniaturization, what generally adopt is paster antenna or PF antenna.
Because antenna is built into portable set inside gradually, therefore a large amount of use planar internal antennas for reducing antenna size, has following two kinds of methods usually for the PF antenna.
1, with the higher dielectric sheet of dielectric coefficient, because electrostrictive coefficient is higher, so the corresponding signal wavelength reduces, so antenna size diminishes.This method also can cause the beamwidth of antenna to narrow down simultaneously.
2, increase inductance ground connection at the capacitive character flat plane antenna, thereby reduce the resonance frequency of antenna.
The PF antenna adopts the principle of method two to develop, and this antenna generally all can be with some peculiar grooves, and doing like this is in order to increase the electrical length of antenna.
The qualitative analysis of PF antenna is.
If: LF is the horizontal length of feedback point to antenna port.
LB is the horizontal length of feedback point to the antenna close port.
H is that antenna plane is to the height on GND plane.
Certain such as H, then LB is longer, and impedance is lower.
Certain when impedance, then H is longer, and LF is shorter.
For paster antenna, microstrip antenna refers in pcb board or walks the mode of copper cash as antenna with PCB between plate.Exquisite very many in design, especially the microstrip line of high frequency is complicated especially, not only needs sturdy rudimentary knowledge, also suitable experience will be arranged simultaneously.Generally at first all be to want emulation, make a plate again by the data of emulation, then debugging, the equipment that needs is also very expensive, generally need the high-end equipment such as frequency spectrograph, not general individual can finish, and suggestion requires to buy ready-made microstrip antenna plank according to the frequency band of oneself.
For the wireless signal terminal of miniaturization, adopt PF antenna and paster antenna all desirable, but because the scope of application of PF antenna and paster antenna is not same, therefore often when antenna circuit is set, two kinds of different circuit boards need to be set.
Summary of the invention
The object of the present invention is to provide a kind of simple in structurely, cost is low, can effectively be applicable to the circuit of many antennas compatibility.
Implementation of the present invention is as follows: be applicable to the circuit pin of many antennas compatibility, comprise for matching design circuit for RF patch antenna and with the radio frequency PF antenna match design circuit that is connected for matching design circuit for RF patch antenna; The described paster antenna match circuit that mainly is connected with the aerial signal input matching circuit by aerial signal input matching circuit and while for matching design circuit for RF patch antenna consists of; Described paster antenna match circuit is by selecting resistance R 12 to be connected with radio frequency PF antenna match design circuit.
Described aerial signal input matching circuit mainly is made of aerial signal input ANT, inductance L 13, capacitor C 26, the inductance L 8 of successively series connection, the two ends of described inductance L 13 are connected with capacitor C 23 and the C25 of earth, and described capacitor C 26 is connected with the paster antenna match circuit near an end of inductance L 8.
Described paster antenna match circuit mainly is made of paster antenna J201 and the resistance R 88 that is connected in paster antenna J201 pin 3, described resistance R 88 is connected with ground capacity C47 near an end of paster antenna J201 pin 3, and described resistance R 88 is connected with capacitor C 26 away from an end of paster antenna J201 pin 3; Select an end of resistance R 12 to be connected with paster antenna J201 pin 3, select the other end of resistance R 12 to be connected with radio frequency PF antenna match design circuit.
The model of described paster antenna J201 is: GSM_ANT_MD1506.
Described resistance R 88 is 0R resistance.
The inductance value of described inductance L 8 is: 22nH.
Radio frequency PF antenna match design circuit mainly is made of aerial signal input matching circuit and the radio frequency choke circuit that is connected with the aerial signal input matching circuit and the PF antenna-matching circuit that is connected with the radio frequency choke circuit.
Described aerial signal input matching circuit mainly is made of aerial signal input ANT, inductance L 13, capacitor C 26, the inductance L 8 of successively series connection, the two ends of described inductance L 13 are connected with capacitor C 23 and the C25 of earth, and described capacitor C 26 is connected with the radio frequency choke circuit near an end of inductance L 8.
Described radio frequency choke circuit mainly consists of by the radio-frequency choke J1 of ground connection and with the resistance R 14 of radio-frequency choke J1 parallel connection and the ground capacity C32 that connects with radio-frequency choke J1, described capacitor C 32 also is connected with inductance L 9 away from ground connection one end, and described inductance L 9 is connected with the PF antenna-matching circuit away from an end of capacitor C 32; Inductance L 9 also is connected with selecting resistance R 12 away from an end of capacitor C 32.
Described PF antenna-matching circuit is mainly by PF antenna bond pad ATTEN and PF antenna ground pad ATTEN GND, and the resistance R 37 of connecting successively with PF antenna bond pad ATTEN, inductance L 10, resistance R 41 consist of, described inductance L 10 two ends are connected with capacitor C 30 and the capacitor C 27 of earth, and described resistance R 41 is connected with inductance L 9 away from an end of inductance L 10; The pin 1 of described radio-frequency choke J1 also is connected with a ground signalling test point RF_ANT; Described resistance R 41 and R14 are 0R resistance.
Based on the foregoing circuit design, aerial signal after the matching treatment through the aerial signal input matching circuit, is uploaded to paster antenna J201 with signal by aerial signal input ANT, inductance L 13, capacitor C 26 through successively series connection.
Design based on foregoing circuit, aerial signal is inputted in this circuit by aerial signal input ANT, under the matching treatment of aerial signal input matching circuit, pass through again the radio frequency choke circuit, upload at last in the PF antenna-matching circuit, the PF antenna-matching circuit is furnished with oneself independently match circuit, increases the wire jumper design, removes high power switch.Reduce the BOM cost.
In the present invention, when when resistance R 88 is selected suitable resistance is installed with selection resistance R 12 these two positions, the present invention then can realize the design of paster antenna.When selecting resistance R 12 and resistance R 41 these two positions to select suitable resistance is installed, the present invention then can realize the design of PF antenna.With this, the present invention only need design a circuit board, can select different classes of Antenna Design for demand.Can reduce Secondary Design, exploitation, the expenses such as plate-making.
The invention has the advantages that: paster antenna J201 is furnished with oneself independently match circuit, increases the wire jumper design, removes high power switch.Reduce the BOM cost.Simple in structure, increased radio-frequency choke J1, can open a way to the high frequency ac signal in the circuit, therefore this circuit can be isolated the coupled problem of eliminating between interchange aerial signal and DC source and the ground, can improve communication quality, increase simultaneously the wire jumper design and remove powerful switch designs, adopt 0R resistance.Reduce production cost, can improve the production competitiveness.
Description of drawings
Fig. 1 is overall structure schematic diagram of the present invention.
Embodiment
Embodiment one
As shown in Figure 1.
Be applicable to the circuit of many antennas compatibility, comprise for matching design circuit for RF patch antenna and with the radio frequency PF antenna match design circuit that is connected for matching design circuit for RF patch antenna; Be of the present invention the realization for matching design circuit for RF patch antenna and this Antenna Design of two types of radio frequency PF antenna match design circuit.
For matching design circuit for RF patch antenna, the paster antenna match circuit that mainly is connected with the aerial signal input matching circuit by aerial signal input matching circuit and while consists of.
The aerial signal input matching circuit mainly is made of aerial signal input ANT, inductance L 13, capacitor C 26, the inductance L 8 of successively series connection, the two ends of described inductance L 13 are connected with capacitor C 23 and the C25 of earth, and described capacitor C 26 is connected with the paster antenna match circuit near an end of inductance L 8.
The paster antenna match circuit mainly is made of paster antenna J201 and the resistance R 88 that is connected in paster antenna J201 pin 3, described resistance R 88 is connected with ground capacity C47 near an end of paster antenna J201 pin 3, described resistance R 88 is connected with capacitor C 26 away from an end of paster antenna J201 pin 3
The model of described paster antenna J201 is: GSM_ANT_MD1506.
Described resistance R 88 is 0R resistance.
The inductance value of described inductance L 8 is: 22nH.
Embodiment two
As shown in Figure 1, radio frequency PF antenna match design circuit mainly is made of aerial signal input matching circuit and the radio frequency choke circuit that is connected with the aerial signal input matching circuit and the PF antenna-matching circuit that is connected with the radio frequency choke circuit.
Described aerial signal input matching circuit mainly is made of aerial signal input ANT, inductance L 13, capacitor C 26, the inductance L 8 of successively series connection, the two ends of described inductance L 13 are connected with capacitor C 23 and the C25 of earth, and described capacitor C 26 is connected with the radio frequency choke circuit near an end of inductance L 8.
Described radio frequency choke circuit mainly consists of by the radio-frequency choke J1 of ground connection and with the resistance R 14 of radio-frequency choke J1 parallel connection and the ground capacity C32 that connects with radio-frequency choke J1, described capacitor C 32 also is connected with inductance L 9 away from ground connection one end, and described inductance L 9 is connected with the PF antenna-matching circuit away from an end of capacitor C 32.
Described PF antenna-matching circuit is mainly by PF antenna bond pad ATTEN and PF antenna ground pad ATTEN GND, and the resistance R 37 of connecting successively with PF antenna bond pad ATTEN, inductance L 10, resistance R 41 consist of, described inductance L 10 two ends are connected with capacitor C 30 and the capacitor C 27 of earth, and described resistance R 41 is connected with inductance L 9 away from an end of inductance L 10.
The pin 1 of described radio-frequency choke J1 also is connected with a ground signalling test point RF_ANT.
Described resistance R 41 and R14 are 0R resistance.
Design based on foregoing circuit, aerial signal is inputted in this circuit by aerial signal input ANT, under the matching treatment of aerial signal input matching circuit, pass through again the radio frequency choke circuit, upload at last in the PF antenna-matching circuit, the PF antenna-matching circuit is furnished with oneself independently match circuit, increases the wire jumper design, removes high power switch.Reduce the BOM cost.
To sum up, the present invention only needs selecting resistance R 12, resistance R 88, resistance R 41 places, selects to install or do not install the switching that can realize two kinds of circuit.
As mentioned above, then can well realize the present invention.
Claims (10)
1. be applicable to the circuit of many antennas compatibility, it is characterized in that, comprise for matching design circuit for RF patch antenna and with the radio frequency PF antenna match design circuit that is connected for matching design circuit for RF patch antenna; The described paster antenna match circuit that mainly is connected with the aerial signal input matching circuit by aerial signal input matching circuit and while for matching design circuit for RF patch antenna consists of; Described paster antenna match circuit is by selecting resistance R 12 to be connected with radio frequency PF antenna match design circuit.
2. the circuit that is applicable to many antennas compatibility according to claim 1, it is characterized in that, described aerial signal input matching circuit mainly is made of aerial signal input ANT, inductance L 13, capacitor C 26, the inductance L 8 of successively series connection, the two ends of described inductance L 13 are connected with capacitor C 23 and the C25 of earth, and described capacitor C 26 is connected with the paster antenna match circuit near an end of inductance L 8.
3. the circuit that is applicable to many antennas compatibility according to claim 2, it is characterized in that, described paster antenna match circuit mainly is made of paster antenna J201 and the resistance R 88 that is connected in paster antenna J201 pin 3, described resistance R 88 is connected with ground capacity C47 near an end of paster antenna J201 pin 3, and described resistance R 88 is connected with capacitor C 26 away from an end of paster antenna J201 pin 3; Select an end of resistance R 12 to be connected with paster antenna J201 pin 3, select the other end of resistance R 12 to be connected with radio frequency PF antenna match design circuit.
4. the circuit that is applicable to many antennas compatibility according to claim 3 is characterized in that, the model of described paster antenna J201 is: GSM_ANT_MD1506.
5. the circuit that is applicable to many antennas compatibility according to claim 3 is characterized in that, described resistance R 88 is 0R resistance.
6. the circuit that is applicable to many antennas compatibility according to claim 3 is characterized in that, the inductance value of described inductance L 8 is: 22nH.
7. the circuit that is applicable to many antennas compatibility according to claim 3, it is characterized in that radio frequency PF antenna match design circuit mainly is made of aerial signal input matching circuit and the radio frequency choke circuit that is connected with the aerial signal input matching circuit and the PF antenna-matching circuit that is connected with the radio frequency choke circuit.
8. the circuit that is applicable to many antennas compatibility according to claim 7, it is characterized in that, described aerial signal input matching circuit mainly is made of aerial signal input ANT, inductance L 13, capacitor C 26, the inductance L 8 of successively series connection, the two ends of described inductance L 13 are connected with capacitor C 23 and the C25 of earth, and described capacitor C 26 is connected with the radio frequency choke circuit near an end of inductance L 8.
9. the circuit that is applicable to many antennas compatibility according to claim 8, it is characterized in that, described radio frequency choke circuit mainly consists of by the radio-frequency choke J1 of ground connection and with the resistance R 14 of radio-frequency choke J1 parallel connection and the ground capacity C32 that connects with radio-frequency choke J1, described capacitor C 32 also is connected with inductance L 9 away from ground connection one end, and described inductance L 9 is connected with the PF antenna-matching circuit away from an end of capacitor C 32; Inductance L 9 also is connected with selecting resistance R 12 away from an end of capacitor C 32.
10. according to claim 8 or the 9 described circuit that are applicable to many antennas compatibility, it is characterized in that, described PF antenna-matching circuit is mainly by PF antenna bond pad ATTEN and PF antenna ground pad ATTEN GND, and the resistance R 37 of connecting successively with PF antenna bond pad ATTEN, inductance L 10, resistance R 41 consist of, described inductance L 10 two ends are connected with capacitor C 30 and the capacitor C 27 of earth, and described resistance R 41 is connected with inductance L 9 away from an end of inductance L 10; The pin 1 of described radio-frequency choke J1 also is connected with a ground signalling test point RF_ANT; Described resistance R 41 and R14 are 0R resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210261127XA CN103050791A (en) | 2011-10-15 | 2012-07-26 | Circuit with multi-antenna compatibility |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110311873.0 | 2011-10-15 | ||
| CN201110311869 | 2011-10-15 | ||
| CN201110311869.4 | 2011-10-15 | ||
| CN201110311873 | 2011-10-15 | ||
| CN201210261127XA CN103050791A (en) | 2011-10-15 | 2012-07-26 | Circuit with multi-antenna compatibility |
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| Publication Number | Publication Date |
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| CN103050791A true CN103050791A (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210261127XA Pending CN103050791A (en) | 2011-10-15 | 2012-07-26 | Circuit with multi-antenna compatibility |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103095327A (en) * | 2011-10-31 | 2013-05-08 | 成都高新区尼玛电子产品外观设计工作室 | Radio frequency antenna matching design circuit |
| CN103095328A (en) * | 2011-10-31 | 2013-05-08 | 成都高新区尼玛电子产品外观设计工作室 | Radio frequency patch matching design circuit |
| CN103716002A (en) * | 2013-12-20 | 2014-04-09 | 中国北方车辆研究所 | Apparatus for realizing wireless transmission tuning antenna matching |
| CN108052852A (en) * | 2017-12-18 | 2018-05-18 | 天津科畅慧通信息技术有限公司 | A kind of match circuit of high frequency antenna |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5289142A (en) * | 1992-03-31 | 1994-02-22 | Raytheon Company | Transmit/receive switch for phased array antenna |
| CN202261267U (en) * | 2011-10-31 | 2012-05-30 | 成都高新区尼玛电子产品外观设计工作室 | Radio frequency antenna matching-designed circuit |
-
2012
- 2012-07-26 CN CN201210261127XA patent/CN103050791A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5289142A (en) * | 1992-03-31 | 1994-02-22 | Raytheon Company | Transmit/receive switch for phased array antenna |
| CN202261267U (en) * | 2011-10-31 | 2012-05-30 | 成都高新区尼玛电子产品外观设计工作室 | Radio frequency antenna matching-designed circuit |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103095327A (en) * | 2011-10-31 | 2013-05-08 | 成都高新区尼玛电子产品外观设计工作室 | Radio frequency antenna matching design circuit |
| CN103095328A (en) * | 2011-10-31 | 2013-05-08 | 成都高新区尼玛电子产品外观设计工作室 | Radio frequency patch matching design circuit |
| CN103716002A (en) * | 2013-12-20 | 2014-04-09 | 中国北方车辆研究所 | Apparatus for realizing wireless transmission tuning antenna matching |
| CN108052852A (en) * | 2017-12-18 | 2018-05-18 | 天津科畅慧通信息技术有限公司 | A kind of match circuit of high frequency antenna |
| CN108052852B (en) * | 2017-12-18 | 2021-01-29 | 天津科畅慧通信息技术有限公司 | Matching circuit of high-frequency antenna |
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Application publication date: 20130417 |