Cylindrical-rectangular microstrip antenna with the patch along a helical direction

Author

Lima, A.C.C. ; Giarola, A.J.

Author_Institution

Sch. of Electr. Eng., State Univ. of Campinas, Brazil

fYear

1991

fDate

24-28 June 1991

Firstpage

346

Abstract

The cavity model with magnetic side walls and dyadic Green´s functions is used for the analysis of a cylindrical-rectangular microstrip antenna with the patch along a helical direction. The input impedance and the radiation pattern are calculated for the antenna operating in the TM/sub 01/ mode. The expressions obtained for the resonant frequency and the input impedance with the patch along a pitch angle are identical to those obtained by K.M. Luk et al. (1989) when the patch is along the axial direction. As expected, the radiation pattern depends on the pitch angle and on the substrate dielectric permittivity.<>

Keywords

Green´s function methods; antenna radiation patterns; antenna theory; electric impedance; microstrip antennas; TM/sub 01/ mode; cavity model; cylindrical-rectangular microstrip antenna; dyadic Green functions; helical direction; input impedance; magnetic side walls; radiation pattern; rectangular patch; resonant frequency; Antenna radiation patterns; Dielectric substrates; Directive antennas; Green´s function methods; Helical antennas; Impedance; Magnetic analysis; Microstrip antennas; Permittivity; Resonant frequency;

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.1991.174847

Filename

174847