Title :
A retrodirective array with interference rejection capability
Author :
Goshi, D.S. ; Leong, Kevin M. K. H. ; Itoh, Takayuki
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
Abstract :
A retrodirective array with interference rejection capability is presented. Signals from two sources (one desired and one interfering) are first detected and then a is formed in sub-arrays at each element in the retrodirective array and directed toward the unwanted signal. The -forming sub-array pattern can be multiplied to the retrodirective pattern through application of the principle of pattern multiplication. The system continues to track the desired signal through its purely analog retrodirective function, requiring no digital signal processing and maintaining almost instantaneous self-tracking. Demonstration of interference suppression shows promise in furthering the functionality of retrodirective arrays in addition to the already high-speed self tracking benefits.
Keywords :
antenna phased arrays; antenna radiation patterns; directive antennas; interference suppression; signal detection; -forming sub-array pattern; analog retrodirective function; instantaneous self-tracking; interference rejection capability; interference suppression; pattern multiplication; phased arrays; retrodirective arrays; scanning; signal detection; signal tracking; Adaptive arrays; Antenna arrays; Digital signal processing; Direction of arrival estimation; Frequency; Interference suppression; Phased arrays; Receiving antennas; Signal processing; Signal processing algorithms;
Conference_Titel :
Microwave Symposium Digest, 2005 IEEE MTT-S International
Print_ISBN :
0-7803-8845-3
DOI :
10.1109/MWSYM.2005.1516611