Effect of mutual coupling on direction finding in smart antenna applications

Abstract

Electromagnetic computation was used to account for mutual coupling effects in smart antenna system and improve the performance of direction of arrival (DOA) estimation. The anomalous direction finding results observed in a smart antenna testbed were explained in terms of mutual coupling effects. The experimental results of the Bartlett and multiple signal classification (MUSIC) DOA algorithms for mobile users transmitting at 1.8 GHz are given.