Input impedance of a circular microstrip antenna in a general BOR environment

Author

Sanchez, V.C.

Author_Institution

Atlantic Aerosp. Electron. Corp., Greenbelt, MD, USA

fYear

1990

fDate

7-11 May 1990

Firstpage

636

Abstract

Exterior admittances, calculated with a body of revolution (BOR) moment-method solution, are used with the disk cavity Green´s function to calculate the input impedance to various probe-fed circular microstrip patch geometries via the induced EMF method. The main advantage of the method is its ability to analyze general, rotationally symmetric patch configurations. The tradeoff associated with this generally is increased CPU time, which is strictly a function of the complexity/size of the exterior BOR region. Accuracy of the solution is good to within 1% in resonant frequency for the thick and thin substrate cases considered.<>

Keywords

antenna theory; electric impedance; microstrip antennas; body of revolution moment-method solution; circular microstrip antenna; disk cavity Green´s function; exterior BOR region; exterior admittances; general BOR environment; induced EMF method; input impedance; probe-fed circular microstrip patch geometries; resonant frequency; thick substrate; thin substrate; Admittance; Aerospace electronics; Capacitance; Dielectrics; Geometry; Green´s function methods; Impedance; Microstrip antennas; Moment methods; Slabs;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1990. AP-S. Merging Technologies for the 90's. Digest.

Conference_Location

Dallas, TX, USA

Type

conf

DOI

10.1109/APS.1990.115190

Filename

115190