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Ring satellite navigation antenna for improving low elevation gain and method for making same

A satellite navigation antenna, low-elevation technology, applied in the field of satellite navigation antennas, can solve the problems of difficult to meet satellite navigation receivers, flat panel antenna impedance bandwidth, narrow circular polarization bandwidth, low elevation gain, etc. and bandwidth, high industrial application value, and the effect of reducing antenna cost

Inactive Publication Date: 2008-03-05
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the conventional design method, the impedance bandwidth and circular polarization bandwidth of the panel antenna are narrow, and the low elevation gain is difficult to meet the requirements of the satellite navigation receiver

Method used

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  • Ring satellite navigation antenna for improving low elevation gain and method for making same
  • Ring satellite navigation antenna for improving low elevation gain and method for making same
  • Ring satellite navigation antenna for improving low elevation gain and method for making same

Examples

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Embodiment Construction

[0020] As shown in Figures 1 and 2, the structure of the present invention includes: a microwave substrate 1, an annular patch antenna 2, four metal short-circuit pins 3 (mainly copper, but also other conductive metals), a hollow metal short-circuit cylinder 4 (Mainly copper, can also be other conductive metals), quarter power divider 5, four feeding probes 6, microwave substrate 1 has a first surface and a second surface, and the loop patch loop antenna 2 is located On the first surface of the microwave substrate 1, four metal shorting pins 3 (0.5-1.5 mm in diameter) are symmetrically placed on the edge of the inner ring of the loop antenna, penetrate the microwave substrate 1, and connect the loop patch antenna 2 and the microwave substrate 1 The second surface of the microwave substrate is connected, or the hollow metal short-circuit cylinder 4 is placed on the edge of the loop antenna inner ring, and the loop patch antenna is connected with the second surface of the microwa...

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Abstract

This invention relates to a ring satellite navigation antenna for increasing low elevation gain including: a microwave base board, a ring sheet antenna, four short circuit pins, a hollow metal short circuit column, a quartering power divider and four feed probes, in which, the microwave base board includes a first surface and a second surface, the ring sheet antenna is positioned on the first surface of the base board, the four short circuit pins are placed on the edges of the internal ring of the antenna symmetrically to pass through the base board and connect the antenna with the second surface of the board, the four feed pins are placed on the feeding positions symmetrically with the top contacting to the antenna and the bottom is connected with the four output ends of the quartering power divider, which works at 1.559GHz / 1.575GHz suitable for the navigation terminals of GPS / GALLEO / BD2 systems.

Description

technical field [0001] The invention relates to a satellite navigation antenna, in particular to a circular satellite navigation antenna with improved low elevation gain and a preparation method thereof. Background technique [0002] With the vigorous development of satellite navigation and positioning technology, countries have developed their own global satellite navigation systems. The stability and reliability of the system put forward higher requirements. Therefore, it has become a technical hotspot to design an antenna system that can receive multiple satellite navigation signals at the same time and provide continuous and stable satellite navigation signals. [0003] A satellite navigation terminal is at least composed of a receiver and an antenna. The main function of the antenna is to receive navigation signals, so the design of the antenna is particularly important for the quality of the navigation system. Today's antenna design must not only meet the user's requi...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q13/08H01Q1/00H01P5/12H05K3/02
Inventor 吕善伟张英锋张岩赵晓纪
Owner BEIHANG UNIV
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