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Article title SINGLE- AND MULTIMODE SELECTIVE MICROWAVE DEVICES ON WAVEGUIDES OF COMPLEX CROSS-SECTION AND PERSPECTIVES OF THEIR DEVELOPMENT IN STRUCTURES OF MULTILAYERED INTEGRATED CIRCUITS
Authors V.V. Zemlyakov, G.F. Zargano
Section SECTION II. ELECTRODYNAMICS AND ANTENNA
Month, Year 05, 2016 @en
Index UDC 621.372.8
DOI
Abstract The calculation results of frequency-selective and mode-selective microwave devices on single- and multimode waveguides of complex cross-section are provided with the perspective to microwave IC integration by SIW technology. The calculation of electromagnetic waves of waveguides of complex cross-section is provided by the method of partial regions including field singularity at the metal edge. Electrodynamic analysis of frequency-selective devices is provided by the combination of methods: variational, integral equation, multimode scattering matrix and cascade multiport connection. The synthesis includes radiotechnical synthesis and multiparametric optimization. The structures and characteristics of band-pass filters are presented: on transverse shifts of double-ridged waveguides, on multilevel single-ridged waveguide, on L-ridged waveguides, on resonant diaphragms with complex aperture. The structures and characteristics of band-stop filters are presented: on circular resonant metal rods, on resonant diaphragms with complex aperture. The structures and characteristics of multiaperture directional coupler on double-ridged waveguide with rectangular coupling apertures. The calculations of directional couplers are provided by the Bete’s theory adapted to wave-guides of complex cross-section and multimode operation. The calculation results of mode converters on waveguides of complex cross-section are presented. The converters are realized on smooth deformations of waveguides cross-section and transverse junctions. The possibilities of realization of selective microwave devices on waveguides of complex cross-section in microwave multilayer integrated circuits are discussed. As an example the band-pass filter on L-ridged rectangular waveguide realized by SIW technology is presented. The perspectives of presented approaches and algorithms for modern microwave devices development are shown.

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Keywords Waveguides of complex cross-section; filter; diaphragm; directional couple; mode converter; SIW.
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