NDLI: Comparison of asymptotic solutions for the surface field excited by a magnetic dipole on a cylinder

Content Provider	IEEE Xplore Digital Library
Author	Bird, T.
Copyright Year	1963
Abstract	In the analysis of mutual coupling in apertures on a convex surface, the surface field due to a magnetic dipole on a large conducting cylinder is an important canonical problem. Over the years a number of approximate asymptotic solutions have been described in the literature. In this paper the accuracy of five of the best solutions currently available is tested by comparing them with the exact modal solution. This comparison is accomplished by placing the modal solution in a more efficient form for numerical evaluation. From a study of four ray trajectories on cylinders of radius 1.5171 and four wavelengths it is concluded that two complementing solutions due to Boersma and Lee and the author have best overall accuracy. The former solution is most accurate near the source and in the paraxial region while the Latter is best far from the source and off axis. The worst case errors observed for the test trajectories on the four wavelength cylinder were approximately 1 dB in magnitude and3\degin phase for the Boersma-Lee solution and 0.5 dB and4\deg, respectively, for the author's solution. Generally the errors arc considerably less than these values.
Sponsorship	IEEE Antennas and Propagation Society
Starting Page	1237
Ending Page	1244
Page Count	8
File Size	634715
File Format	PDF
ISSN	0018926X
Volume Number	32
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1984-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Testing Engine cylinders Magnetic analysis Birds Mutual coupling Apertures Antenna theory Silver Physical theory of diffraction Polarization
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering

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