Broadband single-dielectric-layer GNSS measurement type antenna device

Abstract

The invention relates to a broadband single-dielectric-layer GNSS measurement type antenna device. The antenna device comprises a first micro-strip patch, a second micro-strip patch, a first short-circuit pin bolt, a plurality of second short-circuit pin bolts, a dielectric plate and a metal floor. A plurality of first feeding points are arranged on the first micro-strip patch; a plurality of second feeding points are arranged on the second micro-strip patch, and the first micro-strip patch and the second micro-strip patch are located on the same plane; the first short-circuit pin bolt is fixedly connected with the first micro-strip patch; the second short-circuit pin bolts are fixedly connected with the second micro-strip patch; the first micro-strip patch and the second micro-strip patch are fixedly connected to the upper surface of the dielectric plate, and a plurality of third short-circuit pin bolts are fixedly connected to the periphery of the dielectric plate; the metal floor is fixedly connected with the dielectric plate. The broadband single-dielectric-layer GNSS measurement type antenna device is low in cost, light, minimized and high in gain, and meets the high-accuracy requirement of a multi-system navigation time searching and positioning antenna, and the wide angle axis ratio and wide beam bandwidth are achieved.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a broadband single-dielectric-layer GNSS measuring antenna device. Background technique [0002] With the rapid development of GNSS (Global Navigation Satellite System), especially the rise of my country's Beidou satellite navigation industry, the demand for multi-system navigation capabilities has also increased. In order to meet the application requirements of terminal equipment compatible with the four major navigation systems (Global Positioning System, Glonass Positioning System, Galileo System and Beidou Satellite Navigation System), the antenna should have a wide gain bandwidth and beam bandwidth, and the system is required to be compatible Stronger and more compact structure. [0003] In view of the current design requirements of high-precision multi-system GNSS measurement antennas, in terms of satellite signal reception performance, it is necessary not only to ensure ...

AI Technical Summary

Problems solved by technology

Since the stacked dual-frequency active antenna device has a double-layer structure, and the high and low frequencies each occupy one layer, it is usually difficult to increase the thickness of the dielectric substrate to effectively widen the antenna bandwidth based on the antenna miniaturization structure design, resulting in a narrow gain bandwidth.

Moreover, the structure of the stacked dual-frequency active antenna in the prior art is relatively complicated

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