A method and system for realizing intelligent switching of dual GPS antennas
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHENZHEN PROTRULY ELECTRONICS CO LTD
- Publication Date
- 2018-01-02
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
Technical field
[0001] The invention relates to the technical field of intelligent positioning, in particular to a method and system for implementing intelligent switching of dual GPS antennas. Background technique
[0002] At present, the Global Positioning System (GPS) antennas in various positioning devices are basically passive, and most of them are designed with ceramic antennas. The antennas are circularly polarized antennas with good upper hemispheric efficiency. , Because all GPS satellites are high in the sky, the upward gain of the antenna pattern is very good to improve the GPS performance.
[0003] The advantage of the ceramic antenna is that it has strong directivity. Generally, its gain in the upward direction is better, but the gain in the downward direction will be poor. This point is very advantageous for many devices with a fixed design, because we can deliberately make the device's GPS antenna pattern upward when installing the device. However, this design is v...