Fast and efficient mode-matching analysis of ridged circular waveguide polarizers

A fast and efficient mode-matching technique is applied to the analysis and design of polarizer components in ridged circular waveguide technology. Two different structures (the septum polarizer and the longitudinal-ridge polarizer) are investigated with respect to the validity of approximating the...

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Hauptverfasser:	Bornemann, J., Arnari, S., Uher, J., Vahldieck, R.
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Communication systems Loss measurement Modems Performance loss Polarization Prototypes Scattering Transmission line matrix methods Waveguide components Waveguide theory
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creator	Bornemann, J. Arnari, S. Uher, J. Vahldieck, R.
description	A fast and efficient mode-matching technique is applied to the analysis and design of polarizer components in ridged circular waveguide technology. Two different structures (the septum polarizer and the longitudinal-ridge polarizer) are investigated with respect to the validity of approximating the rectangular-cross-section septa by conically shaped ridges in theory. Measurements of two different prototypes demonstrate, first, that the axial ratio response is not potentially critical to this approximation and, second, that some differences occur with respect to return loss and isolation performance, but that these difference have only been encountered beyond the 25 dB margin. A CPU time comparison with HFSS results in a ten-minutes-versus-three-hours advantage of the mode-matching technique.
doi_str_mv	10.1109/MWSYM.1998.700825
format	Conference Proceeding
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No.98CH36192)</btitle><stitle>MWSYM</stitle><date>1998</date><risdate>1998</risdate><volume>3</volume><spage>1799</spage><epage>1802 vol.3</epage><pages>1799-1802 vol.3</pages><issn>0149-645X</issn><eissn>2576-7216</eissn><isbn>0780344715</isbn><isbn>9780780344716</isbn><abstract>A fast and efficient mode-matching technique is applied to the analysis and design of polarizer components in ridged circular waveguide technology. Two different structures (the septum polarizer and the longitudinal-ridge polarizer) are investigated with respect to the validity of approximating the rectangular-cross-section septa by conically shaped ridges in theory. Measurements of two different prototypes demonstrate, first, that the axial ratio response is not potentially critical to this approximation and, second, that some differences occur with respect to return loss and isolation performance, but that these difference have only been encountered beyond the 25 dB margin. A CPU time comparison with HFSS results in a ten-minutes-versus-three-hours advantage of the mode-matching technique.</abstract><pub>IEEE</pub><doi>10.1109/MWSYM.1998.700825</doi></addata></record>
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identifier	ISSN: 0149-645X
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language	eng
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source	IEEE Electronic Library (IEL) Conference Proceedings
subjects	Communication systems Loss measurement Modems Performance loss Polarization Prototypes Scattering Transmission line matrix methods Waveguide components Waveguide theory
title	Fast and efficient mode-matching analysis of ridged circular waveguide polarizers
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