Dielectric resonator antenna excited by waveguide slot for radar applications

Author

Eshrah, I.A. ; Kishk, A.A. ; Yakovlev, A.B. ; Glisson, A.W.

Author_Institution

Dept. of Electr. Eng., Univ. of Mississippi, University, MS, USA

Volume

3

fYear

2003

Firstpage

492

Abstract

Dielectric resonator antennas excited by waveguide slots are analyzed numerically using the method of moments. The dielectric resonator is modeled as a body of revolution based on the integral equation formulation for the equivalent electric and magnetic surface current densities. The analysis of the slotted waveguide uses the dyadic Green´s functions of an infinite rectangular waveguide. The scattering parameters for a slotted waveguide loaded with a dielectric resonator antenna disk are calculated and compared with special cases of interest.

Keywords

Green´s function methods; S-parameters; antenna feeds; antenna radiation patterns; antenna theory; dielectric resonator antennas; electric field integral equations; magnetic field integral equations; method of moments; radar antennas; slot antennas; body of revolution; dielectric resonator antenna; dyadic Green´s functions; electric surface current densities; equivalent current densities; infinite rectangular waveguide; integral equation formulation; magnetic surface current densities; method of moments; radar applications; radiation patterns; scattering parameters; waveguide slots; Current density; Dielectric resonator antennas; Green´s function methods; Integral equations; Magnetic analysis; Moment methods; Radar antennas; Radar applications; Rectangular waveguides; Slot antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2003. IEEE

Print_ISBN

0-7803-7846-6

Type

conf

DOI

10.1109/APS.2003.1219893

Filename

1219893