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Article: Time-domain Green's functions for microstrip structures using Cagniard-de Hoop method

TitleTime-domain Green's functions for microstrip structures using Cagniard-de Hoop method
Authors
KeywordsCagniard-De Hoop Method
Geometrical Optics Series
Microstrip Structure
Time-Domain Green's Function
Issue Date2004
Citation
Ieee Transactions On Antennas And Propagation, 2004, v. 52 n. 6, p. 1578-1585 How to Cite?
AbstractTime-domain Green's functions are required for transient analyzes of many structures using the time-domain integral equation method. In this paper, we express the generalized reflection coefficient of the microstrip structure in terms of a geometric optics series so that by applying the Cagniard-de Hoop method to each term of the series, we can derive the time-domain Green's function. It is demonstrated that this series converges rapidly and there are two contributing waves from each source image if the observation point is beyond the total internal refraction location. The two waves are the direct wave from the image and the head wave from the image to the critical point, and then laterally along the surface to the observer. Each contribution is a definite integral that is evaluated for each point in space and time. Therefore, the derived Green's function is efficient for time-domain simulations compared with conventional approach, in which for each point in space and frequency a Sommerfeld type integral is involved and then the frequency-domain data is converted into time-domain by discrete Fourier transform. This rigorous Green's function can also be used to check the accuracy of other approximate methods such as those using the discrete complex image theory.
Persistent Identifierhttp://hdl.handle.net/10722/182719
ISSN
2015 Impact Factor: 2.053
2015 SCImago Journal Rankings: 2.130
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorXia, MYen_US
dc.contributor.authorChan, CHen_US
dc.contributor.authorXu, Yen_US
dc.contributor.authorChew, WCen_US
dc.date.accessioned2013-05-02T05:16:35Z-
dc.date.available2013-05-02T05:16:35Z-
dc.date.issued2004en_US
dc.identifier.citationIeee Transactions On Antennas And Propagation, 2004, v. 52 n. 6, p. 1578-1585en_US
dc.identifier.issn0018-926Xen_US
dc.identifier.urihttp://hdl.handle.net/10722/182719-
dc.description.abstractTime-domain Green's functions are required for transient analyzes of many structures using the time-domain integral equation method. In this paper, we express the generalized reflection coefficient of the microstrip structure in terms of a geometric optics series so that by applying the Cagniard-de Hoop method to each term of the series, we can derive the time-domain Green's function. It is demonstrated that this series converges rapidly and there are two contributing waves from each source image if the observation point is beyond the total internal refraction location. The two waves are the direct wave from the image and the head wave from the image to the critical point, and then laterally along the surface to the observer. Each contribution is a definite integral that is evaluated for each point in space and time. Therefore, the derived Green's function is efficient for time-domain simulations compared with conventional approach, in which for each point in space and frequency a Sommerfeld type integral is involved and then the frequency-domain data is converted into time-domain by discrete Fourier transform. This rigorous Green's function can also be used to check the accuracy of other approximate methods such as those using the discrete complex image theory.en_US
dc.languageengen_US
dc.relation.ispartofIEEE Transactions on Antennas and Propagationen_US
dc.subjectCagniard-De Hoop Methoden_US
dc.subjectGeometrical Optics Seriesen_US
dc.subjectMicrostrip Structureen_US
dc.subjectTime-Domain Green's Functionen_US
dc.titleTime-domain Green's functions for microstrip structures using Cagniard-de Hoop methoden_US
dc.typeArticleen_US
dc.identifier.emailChew, WC: wcchew@hku.hken_US
dc.identifier.authorityChew, WC=rp00656en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1109/TAP.2004.830258en_US
dc.identifier.scopuseid_2-s2.0-2942711811en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-2942711811&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume52en_US
dc.identifier.issue6en_US
dc.identifier.spage1578en_US
dc.identifier.epage1585en_US
dc.identifier.isiWOS:000221857300023-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridXia, MY=7102492347en_US
dc.identifier.scopusauthoridChan, CH=7404813940en_US
dc.identifier.scopusauthoridXu, Y=7406445006en_US
dc.identifier.scopusauthoridChew, WC=36014436300en_US

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