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Conference Paper: Some methods of analysis of a probe-fed microstrip disk antenna

TitleSome methods of analysis of a probe-fed microstrip disk antenna
Authors
Issue Date1990
Citation
Ieee Antennas And Propagation Society, Ap-S International Symposium (Digest), 1990, v. 1, p. 346-349 How to Cite?
AbstractThe authors present three methods (with increasing complexity) of incorporating the gap capacitance of the probe basis into the input impedance calculation of a probe-fed antenna. They are the variational formula, the mode-matching method, and the mode-matching method with a diaphragm. It is noted that in the previous approach the gap capacitance of the probe base that shunts the input impedance of the microstrip antenna is not included in the input impedance. Under the single-mode approximation, the mode-matching methods are identical to the variational formula. However, when a diaphragm is present, the single-mode approximation is insufficient. Therefore, the variational formula is inaccurate when a diaphragm exists. The theory shows that the effect of the gap capacitance at the coaxial aperture on the input impedance of the microstrip antenna is important when the dielectric substrate is thick. The theories agree well with experiment data with no fudge factors.
Persistent Identifierhttp://hdl.handle.net/10722/182813
ISSN

 

DC FieldValueLanguage
dc.contributor.authorChew, WCen_US
dc.contributor.authorNie, Zen_US
dc.contributor.authorLiu, QHen_US
dc.contributor.authorLo, YTen_US
dc.date.accessioned2013-05-02T05:17:10Z-
dc.date.available2013-05-02T05:17:10Z-
dc.date.issued1990en_US
dc.identifier.citationIeee Antennas And Propagation Society, Ap-S International Symposium (Digest), 1990, v. 1, p. 346-349en_US
dc.identifier.issn0272-4693en_US
dc.identifier.urihttp://hdl.handle.net/10722/182813-
dc.description.abstractThe authors present three methods (with increasing complexity) of incorporating the gap capacitance of the probe basis into the input impedance calculation of a probe-fed antenna. They are the variational formula, the mode-matching method, and the mode-matching method with a diaphragm. It is noted that in the previous approach the gap capacitance of the probe base that shunts the input impedance of the microstrip antenna is not included in the input impedance. Under the single-mode approximation, the mode-matching methods are identical to the variational formula. However, when a diaphragm is present, the single-mode approximation is insufficient. Therefore, the variational formula is inaccurate when a diaphragm exists. The theory shows that the effect of the gap capacitance at the coaxial aperture on the input impedance of the microstrip antenna is important when the dielectric substrate is thick. The theories agree well with experiment data with no fudge factors.en_US
dc.languageengen_US
dc.relation.ispartofIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)en_US
dc.titleSome methods of analysis of a probe-fed microstrip disk antennaen_US
dc.typeConference_Paperen_US
dc.identifier.emailChew, WC: wcchew@hku.hken_US
dc.identifier.authorityChew, WC=rp00656en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0025544887en_US
dc.identifier.volume1en_US
dc.identifier.spage346en_US
dc.identifier.epage349en_US
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridChew, WC=36014436300en_US
dc.identifier.scopusauthoridNie, Z=7103290485en_US
dc.identifier.scopusauthoridLiu, QH=26643168800en_US
dc.identifier.scopusauthoridLo, YT=7401934487en_US

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