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Feed network of broadband array antenna

A feed network and array antenna technology, applied in antennas, antenna arrays, circuits, etc., can solve problems such as lengthening of parallel feeders, achieve high gain and reduce antenna side lobes

Inactive Publication Date: 2008-08-20
SHANGHAI JIAO TONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual industrial applications, when the required antenna board does not have a square size, the parallel feeder will be greatly lengthened, and the parallel feeder network is not suitable

Method used

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  • Feed network of broadband array antenna
  • Feed network of broadband array antenna
  • Feed network of broadband array antenna

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Embodiment Construction

[0018] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following the described embodiment.

[0019] Such as figure 1 , image 3 As shown, this embodiment includes: feed port 1, microstrip feed network 2, radiation antenna dielectric substrate 3, feed network dielectric substrate 4, microstrip antenna radiation unit 5, ground plate 6, microstrip mirror unit 7, Coaxial line feed unit 8. Among them: microstrip antenna radiating unit 5, radiating antenna dielectric substrate 3, microstrip mirror unit 7, coaxial feed unit 8, ground plate 6, feed network dielectric substrate 4, microstrip feed network 2 and feed port 1 Set in order from top to bottom. The micro...

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Abstract

The present invention provides a feed network of wideband array antenna which is used for wireless communication field. The present invention comprises of microstrip antenna radiation cell, radiation antenna medium substrate, microstrip mirrored unit, coaxial line feed cell, grounding board, feed network medium substrate, microstrip feed network and feed port from top to down in turn. Feed port is connected with microstrip, grounding board and feed network are set on upper surface and lower surface of feed network medium substrate, microstrip feed network is separated with radiation antenna medium substrate by grounding board and air microstrip, microstrip antenna radiation cell, microstrip mirrored unit and microstrip feed network are connected by coaxial line feed cell. The present invention can work efficiently on ku wave band (11.75-12.75GHz), and the array antenna has merits of high plus, low sidelobe and steady structure.

Description

technical field [0001] The invention relates to a feeding network for an antenna in the technical field of wireless communication, in particular to a feeding network for a broadband array antenna. Background technique [0002] With the development of modern wireless communication, a variety of antennas with excellent performance have emerged. Among them, the microstrip antenna has become a hot spot in modern antenna research because of its light weight, small size, and low cost. In wireless communication, it is more commonly used that a certain number of antennas form an array. How to properly feed large array antennas has become one of the key technologies. The specific design needs to adjust the geometry and size of each part of the feed network to achieve impedance matching and power distribution, so as to achieve the desired pattern, gain and side lobe performance. The general broadband array antenna feed network is mainly realized by the H-type microstrip line power d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/00H01Q13/08H01Q1/38
Inventor 金荣洪杨光叶声耿军平潘建宁王小华赵东方
Owner SHANGHAI JIAO TONG UNIV
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