Title :
Radiation characteristics of microstrip patch antennas with dielectric covers
Author :
Qasim, G. ; Shunshi Zhong
Author_Institution :
NWFP Univ. of Eng. & Technol., Peshawar, Pakistan
Abstract :
A covered rectangular microstrip patch antenna is analyzed by the SDI (spectral domain immittance) method to obtain the current distribution. A set of simple formulas for radiation patterns is derived which can also be applied to other stratified media. Also, x-and y-directed current distributions on the patch are given for physical insight. Numerical results for different superstrate thicknesses are presented. The gain enhancement is possible by optimizing the thickness of covers and/or their spacings.<>
Keywords :
antenna accessories; antenna radiation patterns; current distribution; microstrip antennas; current distribution; dielectric covers; gain; microstrip patch antennas; radiation characteristics; radiation patterns; spectral domain immittance method; stratified media; superstrate thicknesses; Antenna radiation patterns; Antennas and propagation; Current distribution; Dielectrics; Fourier transforms; Microstrip antennas; Millimeter wave technology; Patch antennas; Resonant frequency; Transmission line matrix methods;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-0730-5
DOI :
10.1109/APS.1992.221426
