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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

Inactive Publication Date: 2019-11-12
安徽省民融军信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing four-arm helical antenna can no longer meet the antenna requirements of satellite navigation and satellite communication terminal equipment for low-elevation angle communication

Method used

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  • GPS antenna positioning structure
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Embodiment 1

[0030] Such as Figure 1-4 Shown, embodiment one of the present invention is:

[0031] A GPS antenna positioning structure, comprising a helical antenna group 1 and a PCB board 2, the helical antenna group 1 is welded together with the PCB board 2 by means of ultrasonic welding, wherein;

[0032] The helical antenna group 1 includes a four-arm helical antenna 3, and the single-arm helical antenna 3 is composed of two tapered helixes 4;

[0033] The PCB board 2 includes a horizontal substrate 5 and a vertical substrate 6 composed of a Jinsen phase-shifting feed network;

[0034] The horizontal substrate 5 is provided with a first radio frequency port, a second radio frequency port, a third radio frequency port and a fourth radio frequency port for matching connection with the helical antenna 3, and the second radio frequency port and the fourth radio frequency port The ports are respectively connected with 90° phase shifters 7;

[0035] The vertical substrate 6 is provided w...

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PUM

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/27H01Q1/36H01Q3/30H01Q23/00
CPCH01Q1/27H01Q1/36H01Q3/30H01Q23/00
Inventor 吴峰峰张硕
Owner 安徽省民融军信息技术有限公司
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