DocumentCode
326454
Title
Spurious modes caused by absorbing boundary conditions
Author
Dreher, A.
Author_Institution
Inst. of Radio Frequency Technol., German Aerosp. Res. Establ., Oberpfaffenhofen, Germany
Volume
2
fYear
1998
fDate
21-26 June 1998
Firstpage
1054
Abstract
Spurious modes can occur in the analysis of radiating structures, if absorbing boundary conditions (ABCs) are used. They can be put down to complex eigensolutions of the enclosed region, of which the wavenumbers are computed for ABCs of different order. The occurrence of spurious solutions is shown for a single microstrip line, analyzed with the method of lines (MoL) and absorbing lateral boundaries.
Keywords
eigenvalues and eigenfunctions; electromagnetic wave absorption; finite difference methods; method of lines; microstrip lines; waveguide theory; absorbing boundary conditions; absorbing lateral boundaries; complex eigensolutions; enclosed region; finite difference method; method of lines; microstrip line; radiating structures; spurious modes; spurious solutions; wavenumbers; Boundary conditions; Microstrip;
fLanguage
English
Publisher
ieee
Conference_Titel
Antennas and Propagation Society International Symposium, 1998. IEEE
Conference_Location
Atlanta, GA, USA
Print_ISBN
0-7803-4478-2
Type
conf
DOI
10.1109/APS.1998.702132
Filename
702132
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