A circularly polarized dielectric resonator antenna excited by an asymmetrical U-slot

Author

Li, B. ; So, K.K. ; Leung, K.W.

Author_Institution

Dept. of Electron. Eng,, City Univ. of Hong Kong, Kowloon, China

Volume

3

fYear

2003

fDate

22-27 June 2003

Firstpage

754

Abstract

A circularly polarized (CP) low-profile dielectric resonator antenna excited by an asymmetrical U-slot is investigated theoretically and experimentally. The nonuniform orthogonal grids finite-difference-time-domain (FDTD) method with source independent resistive voltage source (RVS) model is adopted in the simulation. The return loss, input impedance, axial ratio, radiation pattern, and gain of the antenna are studied. The calculations compare fairly well with measurements.

Keywords

Maxwell equations; antenna radiation patterns; dielectric resonator antennas; finite difference time-domain analysis; antenna gain; asymmetrical U-slot; axial ratio; circularly polarized antenna; finite-difference-time-domain method; input impedance; low-profile dielectric resonator antenna; nonuniform orthogonal grids; radiation pattern; return loss; source independent resistive voltage source; Antenna measurements; Antenna theory; Dielectric constant; Dielectric resonator antennas; Feeds; Finite difference methods; Impedance; Polarization; Time domain analysis; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2003. IEEE

Conference_Location

Columbus, OH, USA

Print_ISBN

0-7803-7846-6

Type

conf

DOI

10.1109/APS.2003.1220021

Filename

1220021