Title :
Experimental investigation of mutual coupling in a conical horn array
Author :
Tun, S.M. ; Clarricoats, P.J.B. ; Parini, Clive G.
Author_Institution :
Queen Mary College, University of London, Department of Electrical & Electronic Engineering, London, UK
Abstract :
Mutual coupling in a small dominant mode conical horn array is investigated experimentally and the measured results are compared with theoretical predictions. Degradation in crosspolar purity due to generation of higher-order TM01 and TE21 modes via crosscoupling is confirmed. The effects of edge termination and diffraction are also discussed. Finally, clean-beam cluster patterns are measured and compared with theory.
Keywords :
antenna radiation patterns; microwave antenna arrays; waveguide antennas; TE21 modes; TM01 modes; clean-beam cluster patterns; conical horn array; crosscoupling; crosspolar purity; diffraction; edge termination; mutual coupling;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19840637
