Title :
Recalculating linear array antennas to compensate for failed elements while maintaining fixed nulls
Author :
Lozano, M.V. ; Rodriguez, J.A. ; Ares, F.
Author_Institution :
Dept. de Fisica Aplicada, Santiago de Compostela Univ., Spain
Abstract :
Given the failure of one or more elements of an array antenna designed to produce a radiation pattern including nulls in arbitrarily fixed directions, a pattern with the desired side lobe level and nulls can often be recovered by modifying the excitations of the non-defective elements. The modified excitations can be calculated by simulated annealing using an appropriate cost function.
Keywords :
antenna radiation patterns; linear antenna arrays; simulated annealing; cost function; defective antennas; failed elements compensation; fixed nulls; linear array antennas; nondefective antennas; nondefective elements excitation modification; radiation pattern; side lobe level; simulated annealing; Antenna arrays; Antenna radiation patterns; Brain modeling; Cost function; Degradation; Directive antennas; Dynamic range; Linear antenna arrays; Null value; Simulated annealing;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1999. IEEE
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-5639-x
DOI :
10.1109/APS.1999.788364
