GPS antenna positioning structure

A technology of GPS antenna and positioning structure, which is applied to antennas, radiating element structures, antennas suitable for movable objects, etc., can solve problems such as unsatisfactory requirements, achieve wide-band working performance, improve low elevation gain, Good effect of circular polarization characteristics
CN110444860AInactive Publication Date: 2019-11-12安徽省民融军信息技术有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
安徽省民融军信息技术有限公司
Publication Date
2019-11-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a GPS antenna positioning structure, including a helical antenna group and a PCB. The helical antenna group is welded together with the PCB by ultrasonic welding, the helical antenna group includes a four-arm helical antenna, the single-arm helical antenna is composed of two gradient helixes; the PCB comprises a horizontal substrate and a vertical substrate formed by a Wilkinson phase-shift feed network; the horizontal substrate is provided with a first radio frequency port, a second radio frequency port, a third radio frequency port, and a fourth radio frequency port in matched connection with the helical antenna; and the second radio frequency port and the fourth radio frequency port are connected with 90-DEG phase shifters. The GPS antenna positioning structure has the beneficial effects that in a mode of optimizing the helical arm, wide-band operating performance can be better realized, the antenna beam width is widened, and the low elevation angle gains ofthe antenna are improved.
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Description

technical field

[0001] The invention relates to the technical field of communication antennas, in particular to a GPS antenna positioning structure. Background technique

[0002] With the development of navigation technology, the monopoly position of GPS has been broken. At present, the widely used navigation systems include China's Beidou navigation system, the United States' GPS navigation system, Russia's Glonass navigation system and Europe's Galileo navigation system; and the development of navigation systems Related high-precision real-time positioning technology has also become a boom in research today. It is widely used in military, agricultural, intelligent transportation and other industries, and civilian use will also be its development trend. Correspondingly, high-precision positioning The need for devices is bound to increase.

[0003] The antenna is widely concerned as a device for receiving signals. The quadrifilar helical antenna has a heart-shaped pattern, ...

Claims

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