Impedance characterization of dielectric horn antennas using FDTD

Author

Venkatarayalu, Neelakantam V. ; Chen, Chi-Chih ; Teixeira, Fernando L. ; Lee, Robert

Author_Institution

Dept. of Electr. & Comput. Eng., Ohio State Univ., Columbus, OH, USA

Volume

4

fYear

2002

fDate

2002

Firstpage

482

Abstract

In this paper, we perform a detailed study of the input impedance of dielectric horn antennas with a two conical plate transmission line as a launcher, using the finite-difference time-domain (FDTD) method. Dielectric antennas are well known for having properties such as increased directivity, reduced sidelobe level, and wide bandwidth. These properties are particularly attractive for ground penetrating radar (GPR) applications.

Keywords

antenna radiation patterns; broadband antennas; conical antennas; electric impedance; finite difference time-domain analysis; ground penetrating radar; horn antennas; radar antennas; transmission lines; FDTD; GPR; conical plate transmission line; dielectric horn antennas; directivity; finite-difference time-domain method; ground penetrating radar; input impedance; sidelobe level; wideband antennas; Conductors; Dielectrics; Feeds; Finite difference methods; Horn antennas; Impedance; Time domain analysis; Transmission line antennas; Transmission line theory; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2002. IEEE

Print_ISBN

0-7803-7330-8

Type

conf

DOI

10.1109/APS.2002.1017026

Filename

1017026