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High-anti-multipath high-precision measuring type antenna 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, improve performance, and achieve broadband matching effects

Active Publication Date: 2015-10-07
BEIJING ANTENG TIANHUI COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • High-anti-multipath high-precision measuring type antenna and communication equipment
  • High-anti-multipath high-precision measuring type antenna and communication equipment
  • High-anti-multipath high-precision measuring type antenna 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-anti-multipath high-precision measuring type antenna and communication equipment. The antenna comprises a central radiation unit assembly, a support assembly, a ground plate assembly, a half-opening round chamber assembly, a polarized isolation power dividing device and a wave-transmitting sealing antenna housing. 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 half-opening round chamber assembly is coaxially arranged in a way to abut on the back side of the ground plate assembly. The polarized isolation power dividing device is arranged on the back side central part of the ground plate assembly. The central radiation unit assembly is connected with the polarized isolation power dividing device through a coaxial supply line arranged inside the support assembly. The antenna is fully sealed inside the wave-transmitting sealing antenna housing. The antenna which achieves multi-frequency, broadband and stable radiation phase center characteristics further achieves a full-space single lobe pattern and has the advantages of high circular symmetry, high roll-off, high front-to-back ratio, and good wide angle circular polarization characteristics. Furthermore, the antenna has the characteristics of super strong anti-multipath performance, small size, lightness, high reliability, low cost, etc.

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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IPC IPC(8): H01Q1/14H01Q1/48H01Q1/36H01Q1/42H01Q1/24
Inventor 叶云裳
Owner BEIJING ANTENG TIANHUI COMM TECH
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