Far-field pattern Analysis of multimode circular patch antenna on SISL platform using CMA

Abstract

A multimode circular patch antenna is studied using characteristic mode analysis on SISL platform. Four modes with directive far field patterns that resonate close to each other are obtained. With the physical insight provided by the CMA, a feeding structure is designed to excite two modes with wide band characteristics. More than two modes can be utilized by properly adjusting the feeding system and other feeding systems can be used as well. This method is applicable to antenna design with different properties for different applications.