Title :
Crosspolarisation characteristics of circular patch antennas
Author :
Lee, K.F. ; Luk, Kwai Man ; Tam, P.Y.
Author_Institution :
Dept. of Electr. Eng., Toledo Univ., OH, USA
fDate :
3/12/1992 12:00:00 AM
Abstract :
The crosspolarisation characteristics of coaxially fed microstrip patch antennas are studied using the cavity model. Numerical results showing the variation of crosspolarisation level for different feed positions, substrate thicknesses, substrate permittivities and resonance frequencies are given when the antenna is excited in the TM11 mode.
Keywords :
antenna radiation patterns; antenna theory; electromagnetic wave polarisation; microstrip antennas; TM 11 mode; cavity model; circular patch antennas; coaxially fed microstrip patch antennas; crosspolarisation characteristics; feed positions; resonance frequencies; substrate permittivities; substrate thicknesses;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19920370