Title :
On the Differentially Fed Rectangular Dielectric Resonator Antenna
Author :
Li, Bin ; Leung, Kwok Wa
Author_Institution :
City Univ. of Hong Kong, Kowloon
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 (|Sdd11| < -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);
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2007.915463
