Design of Wide-Band Dielectric Resonator Antenna with a Two-Segment Structure
In this paper, the authors discuss 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 S11>10 dB) at 3.32-7.46GHz frequency band.