Numerical study of a cylindrical dielectric-resonator antenna coated with a dielectric layer

1 January 1995

journal article
Published by Institution of Engineering and Technology (IET) in IEE Proceedings - Microwaves, Antennas and Propagation

Vol. 142 (2) , 189-191
https://doi.org/10.1049/ip-map:19951777

Abstract

A cylindrical dielectric-resonator antenna coated with a thin dielectric layer and operating in TM_{01 delta} mode is studied numerically. The input impedances of the antenna with dielectric coatings of different values of relative permittivity are calculated using the finite-difference time-domain method. It is demonstrated that the impedance bandwidth of the antenna can be substantially improved if an appropriate value of the relative permittivity of the dielectric coating is chosen.

Keywords

TM01Δ MODE
IMPEDANCE BANDWIDTH
DIELECTRIC COATED ANTENNA
CYLINDRICAL DIELECTRIC-RESONATOR ANTENNA
FINITE-DIFFERENCE TIME-DOMAIN METHOD
INPUT IMPEDANCES
RELATIVE PERMITTIVITY

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