Title :
Examples of ill-conditioned matrices where simple inversion yields satisfactory results
Author :
Barlevy, A.S. ; Rahmat Samii, Y.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
Abstract :
In this paper we solve for the scattered field from a periodic surface, which is usually referred as a frequency selective surface (FSS). Due to inherent discontinuities in the derivative of the scattered field as a function of frequency, the condition number increases without bound. Even though the condition number is extremely high (>10/sup 15/), the solution of the scattered field is very accurate.
Keywords :
electromagnetic wave scattering; frequency selective surfaces; matrix inversion; condition number; discontinuities; frequency; frequency selective surface; ill-conditioned matrices; inversion; periodic surface; scattered field; Electromagnetic scattering; Frequency selective surfaces; Gratings; H infinity control; Integral equations; Message-oriented middleware; Moment methods; Propagation constant; Reflection; Transmission line matrix methods;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1996. AP-S. Digest
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
0-7803-3216-4
DOI :
10.1109/APS.1996.549943
