Efficient boundary contour mode-matching method of H- and E-plane junctions by fast Fourier transform algorithm

TítuloEfficient boundary contour mode-matching method of H- and E-plane junctions by fast Fourier transform algorithm
Tipo de publicaciónJournal Article
Year of Publication2003
AutoresRuiz-Cruz, J. A., J. Esteban, and J. M. Rebollar
JournalIEE Proceedings Microwaves, Antennas and Propagation
Volumen150
Pagination332-338
Date PublishedOct.
ISSN1350-2417
Palabras claveboundary contour mode-matching method, circular boundary, circular waves, coupling integrals, efficient method, electromagnetic field, electromagnetic fields, fast Fourier transform algorithm, fast Fourier transforms, FFT algorithm, field expansion, fullwave analysis, H-plane junctions, junction matrix, mode matching, planar boundary, plane waves, simulated results, waveguide junctions E-plane junctions
ResumenAn efficient boundary contour mode-matching method (BCMM) is applied to the analysis of H- and E-plane junctions with planar and circular boundaries. The proposed approach is based on the use of the fast Fourier transform (FFT) to improve an analytical BCMM method. The electromagnetic field inside the structure is expressed in terms of circular waves, whereas in the rectangular ports a modal expansion is used. Depending on the shape of the contour, the original field expansion is rewritten in plane waves or in other sets of circular waves, replacing the conventional numerical integrations by a new, more suitable procedure. Finally, the transformation between the different expansions is carried out by means of the FFT, increasing notably the efficiency of the method. The presented formulation is verified by comparing simulated results with those obtained by other numerical techniques
URLhttp://ieeexplore.ieee.org/iel5/2196/28221/01262347.pdf?tp=&isnumber=&arnumber=1262347
DOI10.1049/ip-map:20030775