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Author Bird, T.
Sponsorship IEEE Antennas and Propagation Society
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1963
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Electricity & electronics ♦ Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Testing ♦ Engine cylinders ♦ Magnetic analysis ♦ Birds ♦ Mutual coupling ♦ Apertures ♦ Antenna theory ♦ Silver ♦ Physical theory of diffraction ♦ Polarization
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 and<tex>3\deg</tex>in phase for the Boersma-Lee solution and 0.5 dB and<tex>4\deg</tex>, respectively, for the author's solution. Generally the errors arc considerably less than these values.
Description Author affiliation :: Division of Radiophysics, CSIRO, Epping, Australia
ISSN 0018926X
Education Level UG and PG
Learning Resource Type Article
Publisher Date 1984-11-01
Publisher Place U.S.A.
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Volume Number 32
Issue Number 11
Size (in Bytes) 619.84 kB
Page Count 8
Starting Page 1237
Ending Page 1244

Source: IEEE Xplore Digital Library