波束扫描微带反射阵天线设计

doi:10.3969/j.issn.1001-2400.2015.06.029

J4 ›› 2015, Vol. 42 ›› Issue (6): 173-178.doi: 10.3969/j.issn.1001-2400.2015.06.029

• Original Articles • Previous Articles Next Articles

Design of the beam scanning microstrip reflectarray antenna

CHEN Hongwei1;ZHANG Guangqiu1;LEI Xue1;WU Junmo1;SUN Wujian2

(1. Information System Engineering Institute, Information Engineering University, Zhengzhou 450002, China;
2. Institute of North Electronic Equipment, Beijing 100876, China)

Received:2014-06-27 Online:2015-12-20 Published:2016-01-25
Contact: CHEN Hongwei E-mail:laovidyx@126.com

Abstract

Abstract:

For the aim of designing a wide-angle low sidelobe beam scanning microstrip reflectarray antenna, a new design method based on a new aperture phase distribution of three focuses is proposed. This method introduces a new phase distribution determined by three focuses for wide-angle beam scanning firstly. Then the aperture phase distribution is further optimized by the hybrid particle swarm algorithm to reduce the side lobe level of the pattern. Based on the optimization, the antenna realizes beam scanning by use of a moving feed. In order to verify the effectiveness of the design method, a Ku-band circular polarized beam scanning reflectarray antenna is designed and fabricated. The measured results agree well with the simulated ones, with the side lobe level being below -18dB within the scan range of 52°and the band reaching 108％(the overlapping 3dB axial-ratio (AR) and 1dB gain bandwidth).

Key words: beam scanning, reflectarray antenna, three focuses, hybrid particle swarm optimization algorithm

CHEN Hongwei;ZHANG Guangqiu;LEI Xue;WU Junmo;SUN Wujian. Design of the beam scanning microstrip reflectarray antenna[J].J4, 2015, 42(6): 173-178.

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Design of the beam scanning microstrip reflectarray antenna

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