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GNSS choke coil antenna based on absorbing material

A technology of wave-absorbing materials and choke coils, which is applied in the field of satellite navigation antennas, can solve the problems of expensive flat choke coil antennas, inconvenient portability and transportation, and high design costs, so as to improve multipath suppression capabilities, facilitate portability and Effects of transportation and control design costs

Active Publication Date: 2021-05-18
GUANGZHOU GEOELECTRON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These choke coils have excellent performance, but both 2D and 3D choke coils are equipped with multiple concentric metal grooves with a certain groove depth, resulting in a heavy overall quality, which is inconvenient to carry and transport
However, the planar choke antenna is expensive and the design cost is high

Method used

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  • GNSS choke coil antenna based on absorbing material
  • GNSS choke coil antenna based on absorbing material
  • GNSS choke coil antenna based on absorbing material

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Embodiment Construction

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0040] In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", The orientations or positional relationships indicated by "vertical", "horizontal", "horizontal", and "longitudinal" are based on the orientations or positional relationships shown in the drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not intended t...

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Abstract

A GNSS choke coil antenna based on absorbing material, comprising a multipath suppression plate, a plurality of first absorbing units, an antenna unit, a plurality of second absorbing units and a plurality of third absorbing units, a plurality of first The absorbing units are arranged in a ring along the center of the multipath suppressing board and vertically arranged on the upper surface of the multipath suppressing board; the antenna unit is arranged on the upper surface of the multipath suppressing board and is located in the ring formed by a plurality of first absorbing units ; A plurality of second absorbing units are arranged in a circular arrangement along the center of the multipath suppression plate and are arranged obliquely on the upper surface of the multipath suppression plate; a plurality of third absorbing units are arranged in a circular arrangement along the center of the multipath suppression plate and The plurality of third wave-absorbing units are arranged on the outer peripheral surface of the multi-path suppression plate, and are perpendicular to the plurality of first wave-absorbing units. The GNSS choke coil antenna provided by the present invention not only absorbs most of the multipath signals, but also absorbs most of the surface waves formed at the outer peripheral surface of the multipath suppression plate, reduces the interference of surface waves, and effectively improves the multipath suppression of the antenna. ability.

Description

technical field [0001] The invention relates to the field of satellite navigation antennas, in particular to a GNSS choke coil antenna based on wave-absorbing materials. Background technique [0002] GNSS (Global Navigation Satellite System) refers to the global navigation satellite system, which includes the Global Positioning System (Global Positioning System, GPS) of the United States, the Global Navigation Satellite System (Glonass) of Russia, and the Galileo satellite navigation system of Europe ( GalileoSatellite Navigation System, Galileo) and China's Beidou satellite navigation system. GNSS can provide time / space reference and all real-time dynamic information related to position. [0003] With the development of satellite navigation technology, high-performance satellite positioning antennas are more and more popular. However, factors affecting system accuracy such as multipath effects and antenna phase center instability cannot be avoided, and have become the main...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/52H01Q1/50H01Q17/00H01Q1/38
CPCH01Q1/38H01Q1/50H01Q1/52H01Q17/00H01Q17/008
Inventor 韦佳赵翔
Owner GUANGZHOU GEOELECTRON
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