Title :
Optimum aperture distributions in the presence of blockage
Author :
Sachidananda, M. ; Ramakrishna, Sudhir
Author_Institution :
Indian Institute of Science, Department of Aeronautical Engineering, Bangalore, India
Abstract :
A method is presented for optimising the performance indices of aperture antennas in the presence of blockage. An N-dimensional objective function is formed for maximising the directivity factor of a circular aperture with blockage under sidelobe-level constraints, and is minimised using the simplex search method. Optimum aperture distributions are computed for a circular aperture with blockage of circular geometry that gives the maximum directivity factor under sidelobe-level constraints.
Keywords :
antenna radiation patterns; antenna theory; directive antennas; aperture antennas; blockage; directivity factor; optimum aperture distributions; sidelobe level constraints;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19780377
