DESIGN OF WIDE-BAND DIELECTRIC RESONATOR ANTENNA WITH A TWO-SEGMENT STRUCTURE

Abstract

This paper discusses the analysis of a novel two-segment rectangular dielectric resonator antenna (DRA) for broadening of the impedance bandwidth. In the proposed configuration, two rectangular dielectric sections are used which are separated by a metal plate. With this configuration, it is possible to excite two adjacent resonant frequencies. Utilizing the two-segment thin DRA and skillfully varying its aspect ratio, an appropriate structure is obtained that illustrates more than 76.8% impedance bandwidth (for S 11 >10 dB) at 3.32-7.46 GHz frequency band.