CN212542679U - Satellite positioning GPS and Beidou ceramic passive antenna - Google Patents
Satellite positioning GPS and Beidou ceramic passive antenna Download PDFInfo
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- CN212542679U CN212542679U CN202021596842.5U CN202021596842U CN212542679U CN 212542679 U CN212542679 U CN 212542679U CN 202021596842 U CN202021596842 U CN 202021596842U CN 212542679 U CN212542679 U CN 212542679U
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Abstract
The utility model discloses a satellite positioning GPS, big dipper pottery passive antenna is connected with terminal equipment, including radio frequency connecting wire, radio frequency connecting plate, potsherd and signal shield cover, the radio frequency connecting wire is connected with terminal equipment, and the radio frequency connecting plate is connected with the radio frequency connecting wire, and the radio frequency connecting plate is connected with terminal equipment, and the potsherd is connected with the radio frequency connecting plate, and the signal shield cover is installed on the potsherd lower surface, and the radio frequency connecting wire is connected with the signal shield cover. Adopt above-mentioned technical scheme's satellite positioning GPS, big dipper pottery passive antenna, when the installation, only need with the ceramic face just can reduce the influence that the signal was blocked by the sky in the face of the sky, reach high accuracy stable performance's effect, be equipped with the shield cover simultaneously and can prevent external electromagnetic wave to the influence of internal circuit.
Description
Technical Field
The utility model relates to a big dipper passive antenna technical field, in particular to satellite positioning GPS, big dipper pottery passive antenna.
Background
When the GPS and Beidou ceramic antennas are used, only one ceramic chip is used for receiving sky satellite signals and is directly connected to an RF-IN pin of the positioning module, the connection mode is simple IN structure, and the standard 25 x 4 ceramic chip is low IN cost, mature IN technology, small IN duty volume and suitable for positioning and navigation of devices such as PNDs, vehicle-mounted navigation, shared bicycles, shared electric bicycles and the like. The layout of the antenna is that the antenna pin directly reaches the RF-IN pin of the module, the wire needs to be subjected to 50 ohm impedance matching, electromagnetic interference cannot exist near the antenna, the requirements on the design of a PCB and the EMI design of the whole machine are higher, but if a passive antenna GPS product with excellent design is designed, the passive antenna GPS product also has a good performance effect, and the power consumption mode is saved.
The existing Beidou passive antenna is easily interfered by a nearby magnetic field when in use, so that the problem of signal transmission quality is influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a satellite positioning GPS, big dipper pottery passive antenna when the installation, only need with the ceramic face just can reduce the signal by obstructed influence in the sky of aiming at, reach high accuracy stable performance's effect, be equipped with the shield cover simultaneously and can prevent external electromagnetic wave to the influence of internal circuit.
The utility model provides a satellite positioning GPS, big dipper pottery passive antenna is connected with terminal equipment, including radio frequency connecting wire, radio frequency connecting plate, potsherd and signal shield cover, the radio frequency connecting wire is connected with terminal equipment, the radio frequency connecting plate is connected with the radio frequency connecting wire, the radio frequency connecting plate is connected with terminal equipment, the potsherd is connected with the radio frequency connecting plate, the signal shield cover is installed on the potsherd lower surface, the radio frequency connecting wire is connected with the signal shield cover.
In the above scheme, the radio frequency connection board is a PCBA radio frequency connection board.
In the above scheme, the PCBA radio frequency connection board is provided with a feed point and a site, the radio frequency connection line is connected with the feed point, the radio frequency connection line is connected with the site, and the signal shielding case is connected with the site.
In the scheme, the ceramic plate is provided with a silver layer.
In the above scheme, a feed pin is further inserted on the ceramic sheet.
In the scheme, the silver layer, the feed pin and the ceramic chip are synthesized together in a high-temperature furnace heating mode.
In the scheme, the frequency point of the ceramic wafer is 1575.42 +/-5 MHz.
The utility model has the advantages and the beneficial effects that: the utility model provides a satellite positioning GPS, big dipper pottery passive antenna when the installation, only need with the pottery just can reduce the influence of signal by baffled in the sky of aiming at, reach high accuracy stable performance's effect, be equipped with the shield cover simultaneously and can prevent that external electromagnetic wave from to the influence of internal circuit
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Figure 1 is the utility model discloses satellite positioning GPS, big dipper pottery passive antenna's front view.
Figure 2 is the utility model discloses satellite positioning GPS, big dipper pottery passive antenna's top view.
Figure 3 is the utility model discloses satellite positioning GPS, big dipper pottery passive antenna's left side view.
In the figure: 1. radio frequency connecting wire 2, radio frequency connecting plate 3, ceramic chip 4, signal shield cover
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1-3, the utility model relates to a satellite positioning GPS, big dipper pottery passive antenna is connected with terminal equipment, include:
the radio frequency connecting line 1 is connected with the radio frequency line, is connected with the terminal equipment and is used for transmitting the radio frequency signal of the antenna to the terminal equipment;
the radio frequency connecting plate 2 is connected with the radio frequency connecting wire 1, is connected with the terminal equipment and is used for transmitting the radio frequency signal of the antenna to the terminal equipment; in particular to a PCBA radio frequency connecting plate which is used for bearing the shape and the area of a PCB of a ceramic antenna. Because GPS and big dipper have the characteristic of earth-contact bounce, when the area is 7cm x 7cm uninterrupted big, the efficiency of patch antenna can be played to the best, though being restricted by factors such as appearance structure, but keep equivalent area and shape as far as possible even, the selection of amplifier circuit gain must cooperate the rear end LNA gain, the GSC3F of Sirf requires that the total gain before signal input must not exceed 29dB, otherwise the signal is too saturated and can produce the self excitation.
The ceramic plate 3 is connected with the radio frequency connecting plate 2, specifically, the ceramic plate is 25 × 4, the ceramic powder quality and the sintering process directly influence the performance of the ceramic powder, the larger the area of the ceramic plate 3 is, the larger the dielectric constant is, the higher the resonant frequency is, and the better the receiving effect is, and the ceramic plate 3 is mostly designed in a square shape, so that the resonance in the XY direction can be basically consistent, and the effect of uniformly collecting stars can be achieved;
and the signal shielding cover 4 is arranged on the lower surface of the ceramic plate 3, is connected with the radio frequency connecting wire 1 and is used for shielding the influence of external electromagnetic waves on an internal circuit and the external radiation of the electromagnetic waves generated inside.
Furthermore, a feeding point and a place are arranged on the PCBA radio frequency connecting plate, the radio frequency connecting wire 1 is connected with the feeding point in a welding mode, the radio frequency connecting wire 1 is connected with the place in a welding mode, and the signal shielding cover 4 is connected with the place in a welding mode. The GPS and Beidou ceramic antenna collects resonance signals through the feed point and sends the resonance signals to the rear end, and due to the reason of antenna impedance matching, the feed point is not directly above the antenna generally, but is slightly adjusted in the XY direction.
The ceramic plate 3 is brushed with a silver layer, and the silver layer is synthesized together by a high-temperature furnace heating mode after the feed pin is inserted, wherein the silver layer on the surface of the ceramic antenna can influence the resonance frequency of the antenna, and the ceramic antenna collects resonance signals through the feed point and sends the resonance signals to the rear end.
Specifically, the frequency point of the ceramic chip 3 is 1575.42 ± 5MHz, the ideal frequency point of the GPS and beidou ceramic chips is exactly 1575.42 ± 5MMHz, but the antenna frequency point is very easily affected by the surrounding environment, and particularly when the antenna is assembled in the whole machine, the frequency point must be adjusted by adjusting the appearance of the silver coating to keep the frequency point at 1575.42 ± 5MHz again.
The utility model has the advantages and beneficial effect:
1. when the GPS and Beidou ceramic antennas are installed, the ceramic surface is only required to be aligned to the sky to achieve a good effect, and the influence of signal blocking can be reduced by placing the ceramic antennas in the open air;
2. the GPS and Beidou ceramic antenna in the utility model has the characteristics of small volume, low power consumption, good out-of-band inhibition and the like, and is suitable for OBD, vehicle navigation, bicycle sharing, electric bicycle sharing and other equipment;
3. the utility model provides a GPS, big dipper ceramic antenna simple structure, easy assembly and precision are high, the stable performance.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a satellite positioning GPS, big dipper pottery passive antenna, is connected with terminal equipment, its characterized in that, includes radio frequency connecting wire, radio frequency connecting plate, potsherd and signal shield cover, the radio frequency connecting wire is connected with terminal equipment, the radio frequency connecting plate is connected with the radio frequency connecting wire, the radio frequency connecting plate is connected with terminal equipment, the potsherd is connected with the radio frequency connecting plate, the signal shield cover is installed on the potsherd lower surface, the radio frequency connecting wire is connected with the signal shield cover.
2. The satellite positioning GPS, beidou ceramic passive antenna of claim 1, wherein the radio frequency connection board is a PCBA radio frequency connection board.
3. The satellite positioning GPS, Beidou ceramic passive antenna according to claim 2, wherein a feed point and a site are arranged on the PCBA radio frequency connection board, the radio frequency connection line is connected with the feed point, the radio frequency connection line is connected with the site, and the signal shielding case is connected with the site.
4. The satellite positioning GPS, beidou ceramic passive antenna of claim 1, wherein the ceramic sheet is provided with a silver layer.
5. The satellite positioning GPS, Beidou ceramic passive antenna, according to claim 4, characterized in that a feed pin is further inserted on the ceramic sheet.
6. The satellite positioning GPS, Beidou ceramic passive antenna according to claim 5, wherein the silver layer, the feed pin and the ceramic sheet are synthesized together by means of heating through a high temperature furnace.
7. The satellite positioning GPS, beidou ceramic passive antenna of claim 6, wherein the frequency point of the ceramic plate is 1575.42 ± 5 MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021596842.5U CN212542679U (en) | 2020-08-04 | 2020-08-04 | Satellite positioning GPS and Beidou ceramic passive antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021596842.5U CN212542679U (en) | 2020-08-04 | 2020-08-04 | Satellite positioning GPS and Beidou ceramic passive antenna |
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| Publication Number | Publication Date |
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| CN212542679U true CN212542679U (en) | 2021-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021596842.5U Active CN212542679U (en) | 2020-08-04 | 2020-08-04 | Satellite positioning GPS and Beidou ceramic passive antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111864369A (en) * | 2020-08-04 | 2020-10-30 | 上海深迅通信技术有限公司 | Satellite positioning GPS and Beidou ceramic passive antenna |
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2020
- 2020-08-04 CN CN202021596842.5U patent/CN212542679U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111864369A (en) * | 2020-08-04 | 2020-10-30 | 上海深迅通信技术有限公司 | Satellite positioning GPS and Beidou ceramic passive antenna |
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