On the Differentially Fed Rectangular Dielectric Resonator Antenna

Author

Li, Bin ; Leung, Kwok Wa

Author_Institution

City Univ. of Hong Kong, Kowloon

Volume

56

Issue

2

fYear

2008

Firstpage

353

Lastpage

359

Abstract

A differentially fed rectangular dielectric resonator antenna (DRA) is studied using the finite-difference time-domain (FDTD) method. The fundamental TE₁₁₁ mode of the rectangular DRA is excited at 2.4 GHz, with a 10-dB differential impedance bandwidth (|S_dd11| < -10 dB) of ~10.4%. To verify the theory, measurements were carried out, and reasonable agreement between theory and experiment is obtained. The effects of the magnitude and phase imbalances on the DRA impedance and radiation pattern are investigated.

Keywords

UHF antennas; antenna radiation patterns; dielectric resonator antennas; finite difference time-domain analysis; FDTD method; antenna radiation pattern; differential impedance bandwidth; finite-difference time-domain method; frequency 2.4 GHz; rectangular DRA; rectangular dielectric resonator antenna; Coplanar waveguides; Dielectric losses; Dielectric resonator antennas; Electromagnetic waveguides; Finite difference methods; Impedance; Microstrip antennas; Probes; Time domain analysis; Wireless communication; Dielectric resonator antenna (DRA); differential feed; finite-difference time-domain (FDTD);

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2007.915463

Filename

4447334