The current distribution on the feeding probe in an air filled rectangular microstrip antenna

K Brown

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Abstract

The current distribution on the probe and the input impedance of the rectangular air-filled microstrip antenna are calculated using the electrical-field integral equation (EFIE) formulation. A rigorous model for the coaxial line excitation is adopted which makes the formulation valid for electrically thick microstrip antennas. The EFIE is solved numerically using the moment method with a piecewise linear approximation of the patch current and a polynomial approximation of the probe current. It was found by numerous calculations that operating the microstrip antenna at the resonant frequency of the microstrip patch gives the best results with respect to the sidelobe level and cross-polar level. To validate the calculations, the impedance of the rectangular air-filled microstrip antenna was measured for the case h=6 mm and was found to agree with the calculated impedance
Original languageEnglish
Title of host publicationAntennas and Propagation Society International Symposium
VolumeVolume 3
PublisherIEEE
Publication date1989
Pages1680-1683
DOIs
Publication statusPublished - 1989
Event1989 Antennas and Propagation Society International Symposium - San Jose, CA
Duration: 26 Jun 198930 Jun 1989
http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=798

Conference

Conference1989 Antennas and Propagation Society International Symposium
CitySan Jose, CA
Period26/06/198930/06/1989
Internet address

Bibliographical note

Copyright 1989 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

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