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Dual-Band Multiple Beam Antenna System Using Hybrid-Cell Reuse Scheme for Non-Uniform Satellite Communications Traffic

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4 Author(s)
Wang, J. ; Lockheed Martin Space Syst. Co., Newtown, PA, USA ; Rao, K.S. ; Minh Tang ; Hsu, C.

An advanced dual-band antenna system suitable for broadband satellites that is capable of providing higher EIRP, higher G/T, and improved copolar isolation among frequency reuse beams is presented. The antenna system employs a hybrid-cell frequency reuse scheme instead of conventional fixed cell reuse (4-cell or 7-cell) in order to efficiently use spectrum based on traffic demands. It is shown that the advanced antenna employing high-efficiency horns and shaped reflectors provides about 1.0 dB EIRP improvement, 2.0 dB G/T improvement, and 3.0 dB improvement in C/I when compared to conventional antennas.

Published in:

Antennas and Propagation, IEEE Transactions on  (Volume:58 ,  Issue: 4 )

Date of Publication:

April 2010

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