Compact Omnidirectional Filtering Monopole Antenna Using Signal Interference Technique

Abstract

A compact filtering monopole antenna is designed based on circular disc monopole antenna and signal interference technique in this paper. It is composed of a circular disc monopole and a filtering structure which is studied using signal interference technique and theory of microwave technology. When the filtering structure is integrated into the feeding cell, a filtering monopole antenna is obtained. A demonstration is constructed, assembled and tested.