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A high-precision measurement antenna with high anti-multipath and communication equipment

A high-precision, high-resistance technology, applied in the field of communication, can solve problems such as difficulties in implementation, achieve low cost, achieve broadband matching, and isolate cross-polarization components

Active Publication Date: 2017-12-19
姜新发
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This mechanism of action is related to frequency, and it is difficult to further expand the frequency band or further improve the suppression ability.

Method used

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  • A high-precision measurement antenna with high anti-multipath and communication equipment
  • A high-precision measurement antenna with high anti-multipath and communication equipment
  • A high-precision measurement antenna with high anti-multipath and communication equipment

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Embodiment Construction

[0032] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0033] The antenna described in the present invention can be used in a high-precision carrier phase measurement type GNSS terminal receiver system, and can also be used as any antenna that needs to form a broadband, circular polarization, hemispherical beam, and has a stable phase center requirement.

[0034] Navigation and positioning receivers are the basis of all applications in the satellite navigation industry, and receiver antennas are important and core equipment for receivers. With the popularization and deepening of applications, the requirements for the positioning accuracy of the receiver system are getting higher and higher. A carrier phase measurement receiver can achieve cm or even mm level positioning ...

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Abstract

The invention relates to a high-precision measuring antenna with high anti-multipath and communication equipment. The antenna includes a central radiation unit assembly, a support assembly, a ground plate assembly, a semi-open circular cavity assembly, a polarization isolation power dividing device and a wave-transmitting Sealed radome; the central radiation unit assembly is fixed on the top of the support assembly, the support assembly is fixed on the center of the ground plate assembly, the semi-open circular cavity assembly is coaxially installed close to the back of the ground plate assembly, and the polarization isolation power splitter is installed on the ground plate assembly. At the center of the back of the floor assembly, the central radiation unit assembly is connected to the polarization isolation power divider through the coaxial feeder built in the support assembly, and the antenna is completely sealed in the wave-transparent airtight radome. The invention has the characteristics of multi-frequency, broadband and stable radiation phase center, a single lobe pattern in the whole space, high circular symmetry, high roll-off, high front-to-back ratio, good wide-angle circular polarization characteristics, and super anti-multiple Diameter performance, small size, light weight, high reliability, low cost and other characteristics.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a highly anti-multipath, high-precision measurement receiving antenna and communication equipment for a satellite navigation terminal. Background technique [0002] The signals transmitted by navigation satellites include carrier waves, ranging codes and data codes, often called navigation messages. The receiver performs information processing on the navigation message and converts it into 7-dimensional information of position, speed and time to complete navigation and positioning and provide a time reference. In the application of high-precision GNSS, the positioning measurement accuracy is improved to the centimeter and sub-centimeter level, and its antenna is an indispensable key equipment for the receiver, which plays a key role in improving the carrier phase measurement accuracy of GNSS. [0003] In the early days of GPS, the GPS-L1 receiver antennas for single-freque...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/14H01Q1/48H01Q1/36H01Q1/42H01Q1/24
Inventor 叶云裳
Owner 姜新发
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