A Microstrip Leaky-Wave Antenna with Scanning Beams Horizontal to the Antenna Plane

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外文摘要：A leaky-wave antenna with horizontal scanning beams and broadside radiation is presented on the peri-odically modulated microstrip.The horizontal radiation is realized by periodically etching a set of resonant open-ended slots on the ground plane.Dispersion diagrams and Bloch impedance are first analyzed to investigate the propagation and radiation characteristics of the periodic structure.Subsequently,shunt matching stubs are installed aiming to obtain seamless beam scanning property through the broadside.Finally,a prototype is implemented as verification of the presented antenna.Results of the simulations and measurements agree well with each other,indicating the elimination of the open-stop band effect and the horizontal radiation beams.The fabricated antenna exhibits a beam range from-62° to+34°,and provides a maximum measured gain about 14.6 dBi at 10 GHz.

外文关键词：

Bloch impedanceHorizontal radiationLeaky-wave antennaMicrostrip lineSeamless beam scan-ning

作者：

Henghui WANG、Peiyao CHEN、Sheng SUN

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作者单位：

School of Electronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China

基金：

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaSichuan Science and Technology Program

项目编号：

61971115617210012023NSFSC0486

出版年：

2024

DOI：

10.23919/cje.2023.00.033

电子学报(英文)

CSTPCDEI

ISSN：1022-4653

年,卷(期)：2024.33(5)