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A choke type gnss satellite antenna

A satellite antenna and antenna radiation technology, which is applied in the field of satellite navigation antennas, can solve the problems of choke coil antennas such as large volume, inconvenient to carry and transport, and heavy overall weight, so as to widen the lobe width and improve the ability to resist multipath signals , low cost effect

Active Publication Date: 2021-11-16
GUANGZHOU GEOELECTRON
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, most of the choke coil antennas currently on the market are relatively large in size, and because multiple concentric metal grooves with a certain depth need to be provided, the overall weight is relatively heavy, which is not easy to carry and transport, and the cost is also high

Method used

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  • A choke type gnss satellite antenna
  • A choke type gnss satellite antenna
  • A choke type gnss satellite antenna

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Embodiment Construction

[0037] 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.

[0038] 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

The invention discloses a choke-type GNSS satellite antenna, which comprises a suppressing reflection plate, a metal plate and a dielectric layer. The metal plate is arranged above the suppressing reflection plate, and there is a first distance between the lower surface of the metal plate and the upper surface of the suppressing reflection plate, and the first distance forms an air layer for communicating with air. The medium layer is arranged on the upper surface of the metal plate, and the antenna radiation piece is arranged on the medium layer. The GNSS satellite antenna provided by the present invention can realize signal superposition and cancellation in different directions of the antenna by forming an air layer between the suppressing reflector and the metal plate for communicating with the air, which not only greatly improves the gain of the antenna, Moreover, the backward radiation of the antenna is suppressed, so that the front-to-back ratio of the antenna is improved, and the invention has a good anti-interference effect. In addition, the anti-multipath signal design is achieved by adopting the anti-reflection plate and the metal plate above the anti-reflection plate, which has a simple structure, does not need to arrange multiple metal grooves, and has low cost and light weight.

Description

technical field [0001] The invention relates to the field of satellite navigation antennas, in particular to a choke-type GNSS satellite antenna. 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, the measurement accuracy requirements for navigation antennas are getting higher and higher, especially for some special occasions, such as deformation monitoring on dams, bridge deformation monitoring, landslide monitoring, and terminal container ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/36H01Q1/28H01Q15/14H01Q19/10
CPCH01Q1/288H01Q1/36H01Q15/14H01Q19/10
Inventor 韩非凡赵翔
Owner GUANGZHOU GEOELECTRON
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