Title :
Sidelobe reduction for phased array antennas using digital phase shifters. Part 1: One bit phase weighting
Author :
Guo, Y.C. ; Smith, M.S.
Author_Institution :
University College London, Department of Electronic and Electrical Engineering, London, UK
fDate :
8/1/1983 12:00:00 AM
Abstract :
A novel method for sidelobe reduction in phased array antennas is described, using equal-amplitude elements with randomised phase reversals to create an effective taper. Peak sidelobe levels of ¿¿18.8 dB for a 128 element array and ¿¿20.2 dB for 256 elements can be obtained with 9 and 27 phase reversed elements respectively. The associated gain reduction is between 1 and 2 dB. Statistical theory is used to explain the results.
Keywords :
antenna phased arrays; antenna radiation patterns; digital phase shifters; gain reduction; one bit phase weighting; phase reversals; phased array antennas; sidelobe reduction;
Journal_Title :
Microwaves, Optics and Antennas, IEE Proceedings H
DOI :
10.1049/ip-h-1.1983.0058
