Title :
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
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;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1997. IEEE., 1997 Digest
Conference_Location :
Montreal, Quebec, Canada
Print_ISBN :
0-7803-4178-3
DOI :
10.1109/APS.1997.631550
