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Low-profile strong-coupling subarray which is provided with shaped beam and can serve as array element, and design method

A beam-forming and design method technology is applied in the field of low-profile strong coupling sub-arrays, which can solve the problems of high profile, large aperture size of shaped beam array antennas, and difficult design.

Active Publication Date: 2018-01-19
XIDIAN UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] To sum up, the problems existing in the existing technology are: the existing reflecting surface shaped beam antenna has the problems of high design difficulty, high processing precision requirements, and high profile; the shaped beam array antenna has the problem of large aperture size

Method used

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  • Low-profile strong-coupling subarray which is provided with shaped beam and can serve as array element, and design method
  • Low-profile strong-coupling subarray which is provided with shaped beam and can serve as array element, and design method
  • Low-profile strong-coupling subarray which is provided with shaped beam and can serve as array element, and design method

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Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0025] The application principle of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0026] The present invention proposes to use several tiny units and a feed structure to form a sub-array that can be used as an array element, and make the sub-array have a shaped beam. The size of the sub-array is equivalent to the size of the traditional array element, and it is controlled at about half the wavelength corresponding to the central operating frequency. Several micro-units constituting a sub-array must be closely arranged, and the sub-array is a strongly coupled array....

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Abstract

The invention belongs to the technical field of shaped beam antennas, and discloses a design method for a low-profile strong-coupling subarray which is provided with a shaped beam and can serve as anarray element, an implementation method, and a specific structure. The low-profile strong-coupling subarray consists of a plurality of miniature units and a feed structure, and just has one feed point. The shape of the directional diagram of the subarray is controlled by the feed structure, and the size of the subarray is about the wavelength of the half of central working frequency. The subarrayprovided by the invention can serve as a single antenna for independent use, and achieves the shaped beam through the size of a conventional antenna. The subarray can serve as an array element of thearray antenna, and the distance between array elements meets the requirements of grating lobe avoidance. The subarray serves as the array elements of a phased-array antenna, and solves a problem thatthe wide-angle scanning gain of a conventional phased-array antenna design remarkably decreases.

Description

technical field [0001] The invention belongs to the technical field of shaped beam antennas, and in particular relates to a design scheme, a realization method and a specific structure of a low-profile strongly coupled subarray that has a shaped beam and can be used as an array element. Background technique [0002] In satellite communication, in order to meet the effective omnidirectional radiation power requirements of a certain ground service area, the communication antenna must use a shaped beam antenna. The use of shaped beam antennas can reduce the interference caused by ground stations outside the coverage area to the satellite system, improve the spectrum utilization rate of the system and the capacity of the channel, improve the effective omnidirectional radiation power and the quality factor of the receiving system, and enable the satellite Ground station terminal equipment is simplified and reduced in cost. At present, the shaped beam antennas used in satellite c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q21/00
Inventor 邹艳林胡培峰薛裕晓郭景丽王勇孙保华
Owner XIDIAN UNIV
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