Analysis of small broadband flare antennas by an improved FD-TD method

Author

Chen, R.L. ; Liu, Y.W. ; Mei, K.K.

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., California Univ., Berkeley, CA, USA

fYear

1991

fDate

24-28 June 1991

Firstpage

645

Abstract

Input impedance, current distribution, and radiation pattern for a small broadband flare antenna are numerically analyzed by an improved finite-difference-time-domain (FD-TD) method. This method is best suited for treating the curvilinear metal boundaries. The selected small flare antennas with appropriate shapes and a size of about 9 cm show a good broadband performance. The results also show that the input impedance is between 150-450 Omega in a wide-frequency range, and that the radiation patterns are similar for the frequencies in the 5-12 GHz range.<>

Keywords

antenna radiation patterns; antennas; difference equations; electric impedance; time-domain analysis; 150 to 450 ohm; 5 to 12 GHz; FD-TD; SHF; broadband flare antennas; broadband performance; current distribution; curvilinear metal boundaries; finite-difference-time-domain; input impedance; radiation pattern; Boundary conditions; Broadband antennas; Current distribution; Damping; Frequency; Impedance; Microstrip antennas; Reflector antennas; Shape; Transmission line antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1991. AP-S. Digest

Conference_Location

London, Ontario, Canada

Print_ISBN

0-7803-0144-7

Type

conf

DOI

10.1109/APS.1991.174922

Filename

174922