NDLI: Evaluation of Green's Functions of Rectangular Cavities Around Resonant Frequencies in the Method of Moments

Content Provider	IEEE Xplore Digital Library
Author	Mingyu Lu Bredow, J.W. Sungyong Jung Tjuatja, S.
Copyright Year	2002
Abstract	This letter presents a technique to evaluate the Green's functions of rectangular cavities around resonant frequencies. It is well known that, lossless cavities' Green's functions are singular at discrete resonant frequencies hence cannot be numerically evaluated directly. In this letter, the singular terms are first explicitly separated from the Green's functions, and then a bases rearrangement method is proposed to avoid direct evaluation of singularities in the context of the method of moments (MOM). Consequently, MOM that conventionally fails around resonant frequencies yields correct results for all frequencies. The singularity evaluation technique is validated through a practical example. Good agreements between MOM and experimental data are demonstrated over a wide spectral range including various resonant frequencies.
Sponsorship	IEEE Antennas and Propagation Society
Starting Page	204
Ending Page	208
Page Count	5
File Size	261437
File Format	PDF
ISSN	15361225
Volume Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Green's function methods Resonant frequency Moment methods Message-oriented middleware Resonance Geometry Slot antennas Engine cylinders Wideband Broadband antennas resonance Cavity Green's functions method of moments (MOM)
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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