CN204538256U - A kind of high accuracy big dipper multi-mode satellite dual-mode antenna module - Google Patents
A kind of high accuracy big dipper multi-mode satellite dual-mode antenna module Download PDFInfo
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- CN204538256U CN204538256U CN201520195302.9U CN201520195302U CN204538256U CN 204538256 U CN204538256 U CN 204538256U CN 201520195302 U CN201520195302 U CN 201520195302U CN 204538256 U CN204538256 U CN 204538256U
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Abstract
A kind of high accuracy big dipper multi-mode of the utility model satellite dual-mode antenna module, in Beidou navigation receiving equipment, be a kind of can the big-dipper satellite dual-mode antenna of compatible receiver gps satellite signal, belong to communication technique field.The utility model comprises reception antenna, low noise amplifier circuit module, transmitting antenna, power amplification circuit module, printed circuit board and radio frequency cable.
Description
Technical field
A kind of high accuracy big dipper multi-mode of the utility model satellite dual-mode antenna module, in Beidou navigation receiving equipment, be a kind of can the big-dipper satellite dual-mode antenna of compatible receiver gps satellite signal, belong to communication technique field.
Background technology
Beidou navigation terminal equipment is applied to the industry that the field such as navigation, traffic, particularly hazardous materials transportation, passenger traffic, school bus etc. need to grasp in real time vehicle position information.Big Dipper dual-mode antenna is used for receiving and launching Big Dipper satellite signal, for terminal equipment provides locating information, the positional information of terminal is emitted to control centre simultaneously, guarantees that it can grasp terminal position in real time.Because this product environment for use is underway boats and ships or the automobile in travelling, dual-mode antenna is in motion process all the time, and processing the signal that GPS, Big Dipper reception and the Big Dipper launch totally 4 frequency ranges simultaneously, this just proposes high-isolation and high-precision requirement to dual-mode antenna.
The utility model is made up of reception antenna, low noise amplifier circuit module, transmitting antenna, power amplification circuit module, printed circuit board and radio frequency cable, tranmitting frequency is 1616MHz(Big Dipper frequency range), receive frequency is 1575MHz(GPS frequency range), 1561MHz and 2492MHz(Big Dipper frequency range).
Multimode passive antenna design concept traditionally, together with generally 1575 MHz, 1561 MHz with 1616MHz frequencies being designed, be generally stack-design, each frequency has an antenna feed pin.There are following 2 problems in such design: 1) 1575MHz and 1561MHz frequency is receive frequency, 1616MHz is tranmitting frequency, transmitting antenna and reception antenna being stacked to cause aerial signal receive-transmit isolation to be deteriorated, make to receive frequency range to be subject to transmitting interference and cannot working, cause receiving terminal to lose efficacy.2) multimode antenna of 4 frequencies is arranged on same printed circuit board, and navigation signal carries out wide-band amplify through closing Lu Houzai, and low noise amplifier circuit certainly will be caused so too complicated, deterioration in accuracy after output signal process, and cost increases.
The utility model overcomes above-mentioned defect, 1575MHz and 1561MHz two frequency bins is integrated into an antenna body, can receive the satellite-signal of 1575MHz and 1561MHz simultaneously.After this antenna and 2492MHz frequency antenna carry out lamination, all reception antennas are integrated into a double-fed point laminated antenna, are placed on printed circuit board one end; And transmitting antenna 1616MHz is placed on separately the printed circuit board other end.Transmitting antenna and reception antenna are separated, aerial signal isolation is strengthened, reduces the interference transmitted to received signal.Meanwhile, the reception antenna of 3 frequencies is integrated into a double-fed point laminated antenna, low noise amplifier circuit is reduced to 2 groups, while simplified design by 3 groups, improves output signal accuracy, ensure that the continual and steady work of subsequent terminal equipment.
Summary of the invention
The utility model for overcome prior art defect and provide a kind ofly can process GPS simultaneously, the Big Dipper receives and the Big Dipper launches high-isolation, the high accuracy big dipper multi-mode satellite dual-mode antenna module of totally 4 frequency band signals.
The utility model is solved by following technical scheme:
A kind of high accuracy big dipper multi-mode satellite dual-mode antenna module comprises reception antenna, low noise amplifier circuit module, transmitting antenna, power amplification circuit module, printed circuit board and radio frequency cable.
Described reception antenna, is made up of 1575/1561MHz ceramic medium antenna and 2492 MHz ceramic medium antenna, is the double-fed point laminated antenna of stack-design, can receives the satellite-signal of 1575MHz, 1561 MHz and 2492 MHz, tri-frequencies simultaneously.
Described low noise amplifier circuit module one end connects reception antenna, and the other end connects receiver, and its effect is transferred to receiver after the satellite-signal received is carried out low noise amplification process to export the satellite-signal can resolving positional information.
Described transmitting antenna is 1616MHz ceramic medium antenna, can launch the satellite-signal of 1616MHz frequency.
Described power amplification circuit module one end connects printed circuit board, and the other end connects transmitting antenna, and its effect is gone out by transmission antennas transmit by the satellite-signal comprising positional information.
Described printed circuit board one EDS maps reception antenna and low noise amplifier circuit module, another side Distributed transmit antennas and power amplification circuit module.Its effect is linked together at above-mentioned reception antenna, low noise amplifier circuit module, transmitting antenna, power amplification circuit module and receiver, and connect radio frequency cable.
Described radio frequency cable, for connecting receiver.
Accompanying drawing explanation
Fig. 1 is the utility model high accuracy big dipper multi-mode satellite dual-mode antenna module assembly figure.
Fig. 2 is the utility model high accuracy big dipper multi-mode satellite dual-mode antenna modular circuit block diagram.
In figure, each label is: 1.1,1575/1561MHz ceramic medium antenna, 1.22492MHz ceramic medium antenna, 2.1 low noise amplifier circuit modules, 2.2 low noise amplifier circuit modules, 3,1616MHz ceramic medium antenna, 4, power amplification circuit module, 5, printed circuit board, 6.1 radio frequency cables, 6.2 radio frequency cables, 6.3 radio frequency cables
Embodiment
Big dipper multi-mode satellite dual-mode antenna module can be found out by Fig. 1 and Fig. 2, after 1575/1561MHz ceramic medium antenna (1.1) receives, after being amplified by low noise amplifier circuit module (2.1), be transferred to receiver (8) via radio frequency cable (6.1); After 2492MHz ceramic medium antenna (1.2) receives, after being amplified by low noise amplifier circuit module (2.2), be transferred to receiver (8) via radio frequency cable (6.2); Signal with information is emitted to satellite through power amplifier module (4) by 1616MHz transmitting antenna (3) by transmission channel (9).
The utility model has the advantages that and the reception antenna of 3 frequencies is integrated into double-fed point laminated antenna, low noise amplifier circuit is reduced to 2 groups, while simplified design by 3 groups, improves output signal accuracy, ensure that the continual and steady work of subsequent terminal equipment.
Claims (1)
1. a high accuracy big dipper multi-mode satellite dual-mode antenna module, comprises reception antenna, low noise amplifier circuit module, transmitting antenna, power amplification circuit module, printed circuit board and radio frequency cable; It is characterized in that: described reception antenna, be made up of 1575/1561MHz ceramic medium antenna and 2492MHz ceramic medium antenna, for the double-fed point laminated antenna of stack-design, the satellite-signal of 1575MHz, 1561MHz and 2492MHz tri-frequencies can be received simultaneously; Described low noise amplifier circuit module one end connects reception antenna, and the other end connects receiver; Described transmitting antenna is 1616MHz ceramic medium antenna, can launch the satellite-signal of 1616MHz frequency; Described power amplification circuit module one end connects printed circuit board, and the other end connects transmitting antenna; Described printed circuit board one EDS maps reception antenna and low noise amplifier circuit module, another side Distributed transmit antennas and power amplification circuit module; Described radio frequency cable, for connecting receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520195302.9U CN204538256U (en) | 2015-04-02 | 2015-04-02 | A kind of high accuracy big dipper multi-mode satellite dual-mode antenna module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520195302.9U CN204538256U (en) | 2015-04-02 | 2015-04-02 | A kind of high accuracy big dipper multi-mode satellite dual-mode antenna module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204538256U true CN204538256U (en) | 2015-08-05 |
Family
ID=53752219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520195302.9U Active CN204538256U (en) | 2015-04-02 | 2015-04-02 | A kind of high accuracy big dipper multi-mode satellite dual-mode antenna module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204538256U (en) |
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2015
- 2015-04-02 CN CN201520195302.9U patent/CN204538256U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Shijiazhuang City, Hebei Province, the new bridge 050090 West Road No. 375, building B, 5 floor stone Patentee after: Shijiazhuang Shiji Sennuo Communication Technology Co., Ltd. Address before: Shijiazhuang City, Hebei Province, the new bridge 050090 West Road No. 375, building B, 5 floor stone Patentee before: Shijiazhuang Century Seno Communication Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 050090 5th floor, block B, Jinshi building, 375 Xinshi Middle Road, Qiaoxi District, Shijiazhuang City, Hebei Province Patentee after: CENTURY SENO COMMUNICATION Co.,Ltd. Address before: 050090 5th floor, block B, Jinshi building, 375 Xinshi Middle Road, Qiaoxi District, Shijiazhuang City, Hebei Province Patentee before: SHIJIAZHUANG CENTURY SENO COMMUNICATION Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |