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A Common Aperture Array Antenna and Satellite Communication Terminal

An array antenna, common aperture technology, applied in the field of communication, can solve problems such as affecting the performance of the antenna

Active Publication Date: 2021-04-23
CHENGDU T-RAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the frequency ratio is greater than or equal to 2:1 (that is, the wavelength ratio is less than or equal to 1:2), it can make a reasonable array arrangement, but for a small frequency ratio (less than 2:1), if the above array form is still used, the Grating lobes appear when scanning at large angles, affecting antenna performance

Method used

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  • A Common Aperture Array Antenna and Satellite Communication Terminal
  • A Common Aperture Array Antenna and Satellite Communication Terminal
  • A Common Aperture Array Antenna and Satellite Communication Terminal

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Embodiment Construction

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0028] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. It should be noted that, in the case of no conflict, various features in the embodiments of the present invention can be com...

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Abstract

The invention provides a common-aperture array antenna and a satellite communication terminal, which relate to the technical field of communication, and include a stacked receiving antenna layer and a transmitting antenna layer, the receiving antenna layer includes a plurality of receiving antenna units arranged in a rectangular array, and the transmitting antenna layer includes A plurality of tightly coupled units arranged in a rectangular array, one receiving antenna unit of the receiving antenna layer corresponds to four tightly coupled units of the transmitting antenna layer, two adjacent tightly coupled units form a tightly coupled unit group, through each tightly coupled unit group The phase center is also randomly distributed, thus breaking the periodicity and avoiding the phenomenon of grating lobes that are prone to appear when scanning at large angles. In the case of a small frequency ratio, the dual-frequency transceiver co-aperture array antenna does not have grating lobes through the combination of tight coupling and regular array.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a common-aperture array antenna and a satellite communication terminal. Background technique [0002] Miniaturization, multi-function and high-density integration have become the development trend of modern communication technology. As an important part of it, the antenna also faces the same challenges. The common-aperture array antenna is to put multiple antenna arrays with different functions and different frequency bands in the same aperture plane, which realizes multiple functions and fully reduces the occupied area of ​​the antenna, so it has been widely used. [0003] The traditional co-aperture array antenna design generally adopts nested, overlapping and other array arrangements. When the frequency ratio is greater than or equal to 2:1 (that is, the wavelength ratio is less than or equal to 1:2), it can make a reasonable array arrangement, but for a small frequenc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q21/06H01Q1/38H01Q1/50
CPCH01Q1/38H01Q1/50H01Q21/061
Inventor 颜微谷滨王新辉董超罗烜
Owner CHENGDU T-RAY TECH CO LTD
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