Title :
Phase-only synthesis for multiple beam phased arrays with element failures
Author_Institution :
Aerospace Corp., El Segundo, CA, USA
Abstract :
Interference between beams of a multiple-beam phased array can be minimized by reducing the sidelobes of each beam in the overlap area. The sidelobe reduction can be accomplished by adjusting the phase and/or amplitude distribution across the face of the array. Since changing the amplitude distribution reduces the efficiency of the array, changing phase-only has been investigated. The algorithm presented numerically solves for the phase on each antenna element required to minimize the beam interference under the constraint where some elements have failed.<>
Keywords :
antenna phased arrays; antenna radiation patterns; minimisation; numerical analysis; radiofrequency interference; antenna element; beam interference; element failures; minimisation; multiple-beam phased array; numerical methods; overlap area; phase-only antenna array synthesis; sidelobe reduction; Antenna arrays; Antennas and propagation; Contracts; Fourier transforms; Frequency; Gratings; Interference; Lighting; Pattern analysis; Phased arrays;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-0730-5
DOI :
10.1109/APS.1992.221646
