Title :
Partial adaptive nulling on a monopulse phased array antenna system
Author :
Chang, Dau-Chyrh ; Ho, Ko-Tai ; Hung, Chia-I
Author_Institution :
Antenna Sect., Chung Shan Inst. of Sci. & Technol., Lung-Tan, Taiwan
fDate :
2/1/1992 12:00:00 AM
Abstract :
A partial phase-only nulling (PPON) algorithm has been developed and evaluated on a 496-element monopulse phased array antenna system which employs five-bit phase shifters. Using this PPON algorithm allows nulls in the far-field pattern to be steered to the desired directions for a phased array equipped with low-resolution phase shifters to perform simultaneous nulling in the sum and two difference patterns in the environment of multiple jammers. Simulated and experimental patterns are illustrated
Keywords :
antenna phased arrays; antenna radiation patterns; interference suppression; jamming; phase shifters; PPON algorithm; adaptive nulling; difference patterns; far-field pattern; five-bit phase shifters; monopulse phased array antenna system; multiple jammers; partial phase-only nulling; sum patterns; Adaptive arrays; Antenna arrays; Azimuth; Costs; Directive antennas; Jamming; Pattern analysis; Phase shifters; Phased arrays; Quantization;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
