High efficiency and dual polarized array antenna for satellite communication application

Ningmin Liu

doi:10.1117/12.855582

2 April 2010 High efficiency and dual polarized array antenna for satellite communication application

Ningmin Liu

Proceedings Volume 7651, International Conference on Space Information Technology 2009; 76511D (2010) https://doi.org/10.1117/12.855582
Event: International Conference on Space Information Technology 2009, 2009, Beijing, China

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).

Citation Download Citation

Ningmin Liu "High efficiency and dual polarized array antenna for satellite communication application", Proc. SPIE 7651, International Conference on Space Information Technology 2009, 76511D (2 April 2010); https://doi.org/10.1117/12.855582

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