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A technique to locate minima in singular-value decomposition for eigenvalue problems in electromagnetics

✍ Scribed by Smain Amari; Jens Bornemann; Rüdiger Vahldieck


Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
127 KB
Volume
14
Category
Article
ISSN
0895-2477

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✦ Synopsis


An efficient technique to locate minima zeros in the smallest singular ¨alue of a singular ¨alue decomposition, as used to sol¨e eigen¨alue problems in electromagnetics, is presented. The efficiency of the technique depends only on the a¨ailability of a sufficiently accurate representation of the smallest singular ¨alue; the sharpness of the peaks is of minor rele¨ance. The technique is applied to determine the cutoff wa¨e numbers of a ridge circular wa¨eguide to demonstrate its efficiency.