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Proceedings Paper

High efficiency and dual polarized array antenna for satellite communication application
Author(s): Ningmin Liu
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Paper Abstract

In this paper, we describe a flat plate array for the satellite communication receiver, with small aperture, high efficiency and low cross polarization levels. The radiating element used is circular waveguide which is probe-fed using a stripline distribution networks providing uniform excitations to the 4×4 array. The networks are placed one behind the other for dual polarized purposes. The array is composed of 2×1 subarrays. The overall array thickness is about 1λ ( λ is the wavelength of the center frequency), and the array aperture is about 3.2λ. Simulated results on a Ku-band prototype are discussed. The bandwidth (VSWR below 2.0) is about 500MHz, cross-polarized radiation from both ports is below -35dB, the isolation between the ports is below -25dB, and the gain of the 4×4 array is about 20dBi. Simulated efficiency is about 75% (including the stripline feed networks).

Paper Details

Date Published: 2 April 2010
PDF: 5 pages
Proc. SPIE 7651, International Conference on Space Information Technology 2009, 76511D (2 April 2010); doi: 10.1117/12.855582
Show Author Affiliations
Ningmin Liu, Space Star Technology Co., Ltd. (China)

Published in SPIE Proceedings Vol. 7651:
International Conference on Space Information Technology 2009
Xingrui Ma; Baohua Yang; Ming Li, Editor(s)

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