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Affiliation of Author(s):电子信息工程学院

Title of Paper:Circularly-polarised slot array with high front-to-back ratio and low axial ratio

Journal:ELECTRONICS LETTERS

Key Words:slot antenna arrays electromagnetic wave polarisation antenna radiation patterns slot lines circularly-polarised slot array high front-to-back ratio low axial ratio dual CP slot antenna elements slot line excitation amplitudes excitation phases radiating elements cross polarisation back radiation HFSS

Abstract:A novel design for circularly-polarised (CP) arrays is proposed. The proposed array is composed of dual CP slot antenna elements arranged in a face-to-face configuration, and they are simultaneously excited through a slot line. By properly controlling the excitation amplitudes and phases of the two radiating elements, the cross polarisation and back radiation of the array can be effectively reduced. From the measured results, the proposed array can give an axial ratio of lower than 1 dB and a front-to-back ratio of higher than 12 dB within a 10 dB-return-loss bandwidth of >16%. Simulation results obtained with high frequency structure simulator (HFSS) also agree well with the experimental data.

ISSN No.:0013-5194

Translation or Not:no

Date of Publication:2017-10-26

Co-author:冒晨阳,Yang Yang

Correspondence Author:hxx,Yang Yang