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GNSS choking coil antenna based on wave absorbing material

A wave absorbing material and choke coil technology, applied in the field of satellite navigation antennas, can solve the problems of expensive flat choke coil antennas, inconvenient to carry and transport, and high design cost, so as to improve the multipath suppression ability, easy to carry and The effect of transportation and control of design cost

Active Publication Date: 2019-12-31
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 choking coil antenna based on wave absorbing material
  • GNSS choking coil antenna based on wave absorbing material
  • GNSS choking coil antenna based on wave 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 choking coil antenna based on a wave absorbing material is disclosed. The antenna comprises a multipath suppression plate, a plurality of first wave-absorbing units, an antenna unit, a plurality of second wave-absorbing units and a plurality of third wave-absorbing units. The plurality of first wave-absorbing units are annularly arranged along a center of the multipath suppression plate andare vertically arranged on an upper surface of the multipath suppression plate. The antenna unit is arranged on the upper surface of the multipath suppression plate and is located in a ring formed byarranging the plurality of first wave-absorbing units. The plurality of second wave-absorbing units are annularly arranged along the center of the multipath suppression plate and are obliquely arranged on the upper surface of the multipath suppression plate. The plurality of third wave-absorbing units are annularly arranged along the center of the multipath suppression plate and are arranged on an outer peripheral surface of the multipath suppression plate, and the plurality of third wave-absorbing units are vertical to the plurality of first wave-absorbing units. By using the GNSS choking coil antenna of the invention, most of multipath signals can be absorbed, most of surface waves formed on the outer peripheral surface of the multipath suppression plate can be absorbed, an interferenceof the surface waves is reduced, and a multipath suppression capability of the antenna is effectively improved.

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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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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