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Broadband and high low-elevation gain first-generation beidou satellite navigation transceiver antenna

A satellite navigation, transceiver antenna technology, applied in the direction of the connection of the antenna grounding switch structure and the structure of the radiating element, can solve the problems of increasing the size of the navigation terminal equipment, the antenna beam is not wide enough, the axial ratio bandwidth is small, etc., to reduce the material cost. , low cost, the effect of increasing the axial ratio bandwidth

Active Publication Date: 2016-02-24
FUZHOU FUDA BEIDOU COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, some multi-frequency antennas on the market adopt the design scheme of stacked structure, and the antenna section is large, which increases the volume of the navigation terminal equipment; most antennas use single-point feeding, which has the disadvantage of small axial ratio bandwidth; most antennas on the market do not have Specially consider the design scheme of low elevation gain, the beam of the antenna is not wide enough

Method used

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  • Broadband and high low-elevation gain first-generation beidou satellite navigation transceiver antenna
  • Broadband and high low-elevation gain first-generation beidou satellite navigation transceiver antenna
  • Broadband and high low-elevation gain first-generation beidou satellite navigation transceiver antenna

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] Such as Figure 1 to Figure 3 As shown, this example includes that the upper dielectric board 1 and the lower dielectric board 2 are fixed by four plastic screw columns 3, and four grounded rectangular copper sheets 4 are arranged around them, and the copper sheets are welded to the grounding board by solder; A certain thickness of the air layer, and is provided with the first coupling circular copper sheet 5 and the second coupling circular copper sheet 7, the center of the coupling circular copper sheet is the feeding point, the first feeding probe 6 and the second feeding The top ends of the electric probes 8 are respectively welded to the feeding points of the first coupling circular copper sheet 5 and the second coupling circular copper sheet 7 . The lower surface of the upper dielectric board is provided with an inner square ring-shaped ra...

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Abstract

The invention relates to a broadband and high low-elevation gain first-generation beidou satellite navigation transceiver antenna, which comprises two layers of dielectric plates, two coupling round copper sheets and four grounding rectangular copper sheets, wherein an antenna radiation patch is arranged on the lower surface of the upper layer of dielectric plate; a grounding plate is arranged on the upper surface of the lower layer of dielectric plate; a feed network is arranged on the lower surface of the lower layer of dielectric plate; the upper layer of dielectric plate and the lower layer of dielectric plate are fixed through plastic screws; an air layer with a certain length is arranged between the upper layer of dielectric plate and the lower layer of dielectric plate; the coupling round copper sheets are arranged in the air layer and are parallel to the dielectric plates; a feed point is arranged at the circle center of each coupling round copper sheet; the feed points are connected with the feed network through feed probes; the four grounding rectangular copper sheets are respectively attached to the periphery of the antenna; and one side of each grounding rectangular copper sheet is connected with the grounding plate. The broadband and high low-elevation gain first-generation beidou satellite navigation transceiver antenna has the advantages of low profile, large bandwidth, wide wave beam and low cost on the basis of dual-frequency characteristics and can be well applied to beidou navigation terminal equipment.

Description

technical field [0001] The invention relates to a first-generation Beidou satellite navigation antenna for transmitting and receiving frequency bands, in particular to a broadband high-low elevation angle gain Beidou first-generation satellite navigation transmitting and receiving antenna. Background technique [0002] The Beidou satellite navigation system is a global satellite positioning and communication system independently developed by my country. With the gradual establishment and improvement of the Beidou satellite navigation system, the positioning and communication technology based on the Beidou satellite navigation system is developing rapidly, and has penetrated into various fields and is widely used. Used in military, transportation, water conservancy, emergency rescue and disaster relief and other related applications. At present, some multi-frequency antennas on the market adopt the design scheme of stacked structure, and the antenna section is large, which inc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/50
CPCH01Q1/38H01Q1/50
Inventor 袁家德杨晓杰罗歆瑶陈侃
Owner FUZHOU FUDA BEIDOU COMM TECH CO LTD
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