Analysis of arbitrary shaped crosssectional discontinuity in rectangular waveguides using FEM-BIM with triangular prism elements

Author

Hongkuk Park ; Sangwook Nam

Author_Institution

Sch. of Electr. Eng., Seoul Nat. Univ., South Korea

Volume

2

fYear

1997

fDate

13-18 July 1997

Firstpage

672

Abstract

An arbitrary shaped cross-sectional discontinuity in rectangular waveguides is investigated using FEM-BIM with triangular prism elements, which is more effective than normal FEM. The volume of the discontinuity is subdivided into a relatively small number of triangular prism elements and FEM is used to formulate the field distribution. On the other hand, the fields in the waveguide region are represented by BIM derived from the waveguide Green´s function and boundary conditions. The proposed method is verified through experiment for the circular iris in a WR-90 waveguide.

Keywords

Green´s function methods; boundary integral equations; electromagnetic fields; finite element analysis; rectangular waveguides; waveguide discontinuities; waveguide theory; FEM-BIM; Green´s function; WR-90 waveguide; arbitrary shaped crosssectional discontinuity; boundary conditions; circular iris; cross-sectional discontinuity; field distribution; rectangular waveguides; triangular prism elements; waveguide region; Acceleration; Band pass filters; Boundary conditions; Integral equations; Iris; Rectangular waveguides; Shape; Sparse matrices; Transmission line matrix methods; Waveguide discontinuities;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1997. IEEE., 1997 Digest

Conference_Location

Montreal, Quebec, Canada

Print_ISBN

0-7803-4178-3

Type

conf

DOI

10.1109/APS.1997.631550

Filename

631550