Title :
Improved formulas for input impedance of coax-fed microstrip patch antennas
Author_Institution :
Norwegian Institute of Technology, Electronics Research Laboratory, University of Trondheim, Trondheim, Norway
fDate :
8/1/1982 12:00:00 AM
Abstract :
The input impedances of rectangular and circular antennas have been improved by more accurate expressions for the input reactances and radiation conductances. The theory includes the effects of extended antenna patches due to fringe fields at the edge. Surface toughness of the dielectric substrate has also been accounted for. The measured and calculated curves for input impedances agree well.
Keywords :
antenna theory; microwave antennas; strip lines; antenna patches; circular antennas; coax-fed microstrip patch antennas; dielectric substrate; fringe fields; input impedance; radiation conductances; surface toughness;
Journal_Title :
Microwaves, Optics and Antennas, IEE Proceedings H
DOI :
10.1049/ip-h-1.1982.0033
