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Narrow electromagnetic pulse diffraction by slot
Narrow electromagnetic diffraction by slot A Lerer, S Tsvetkovskaya Rostov State University, Institute of Physics, 194 Stachky Street, 344090, Rostov-on-Don, Russia. Tel (863)2280858 Fax (863)2285044 E-mail: lerer@riphys.md.su. lerer@phys.md.runnet.ru Abstract Picosecond electromagnetic pulse diffraction was investigated by numerical analytical method developed by authors to solve integral equatio
Uniaxial slab as a polarisation transformer
Uniaxial slab as a polarisation transformer Ari J Viitanen Electromagnetics Laboratory, Department of Electrical Engineering, Helsinki University of Technology, Otakaari 5 A, FIN-02150 Espoo, FINLAND. Abstract Polarisation properties of plane waves propagating through a uniaxially anisotropic slab are considered for application to a polarisation transformer. Reflections from the interfaces of the
Leakage effects of dominant and higher order modes on slotline
Leakage effects of dominant and higher order modes on slotline Jan Machac, Jan Zehentner Faculty of Electrical Engineering, Czech Technical University Technicka 2, 16627 Prague 6, Czech Republic. Abstract The properties of the slotline when the dominant bound or leaky wave propagates, together with the behaviour of new higher order modes are investigated. The frequency range in which the slotline
EM simulation of complex-geometry domains with enhanced FVTD method
EM simulation of complex-geometry domains with enhanced FVTD method P Ciampolini and L Roselli. Istituto di Elettronica, Universita di Perugia, Via G. Duranti 1/A-1, 06131 Perugia, Italy. Tel. +39-75-5852653 Fax +39-75-5852654 e-mail: urlo@ing.unipg.it Abstract A flexible approach to the EM simulation of complexgeometry domains is presented. To this purpose, different kind of mesh-elements and of
Characterization of microwave devices consisting of different rectangular waveguides partially filled with dielectric material
Characterization of microwave devices consisting of different rectangular waveguides partially filled with dielectric material *Miguel A Solano, Andres Prieto and Angel Vegas **Clara Cagigal ***Jose L Fontecha. *Universidad de Cantabria, ETSIIT, Departamento de Ingenieria de Comunicaciones, Avda. de 10s Castros sin. 39005 Santander Spain. Fax No.: 34 42 201488 E-mail: pita@elmhp4.dicom.unican.es *
Nonreciprocal characteristics of bound and leaky modes of coplanar waveguide with magnetized ferrite
Nonreciprocal characteristics of bound and leaky modes of coplanar waveguide with magnetized ferrite Toshihide Kitazawa* Takahiro Sugano** *Department of Electrical and Electronic Engineering, Ritsumeikan University, Noji, Kusatsu, 525-77 Japan **Ibaraki University, Nakanarusawa, Hitachi, 316 Japan Abstract The nonreciprocal characteristics of the bound and leaky modes are presented for coplanar w
Ferrite circulators for multilayer applications
Ferrite circulators for multilayer applications Sven Hagelin, Lars-David Wernlund FDA, Division of Microwave Technology, Box 1165, S-58 111 Linkoping, Sweden. E-mail svehag@lin.foa.se Abstract In this contribution the conditions for obtaining circulator function in a ring network composed of nonreciprocal phase shifters and power dividers are studied. Analytical results and simulations of prestand
The weakness of the matrix analysis of coupled transmission lines
The weakness of the matrix analysis of coupled transmission lines Adam Abramowicz*, Malgorzata Celuch-Marcysiak**, Marcin Ebert* *Institute of Ele~tronics Fundamentals **Institute of Radioelectronics, Warsaw University of Technology, Nowowiejska 15/19, 00-665 Warsaw, Poland. tel.: 48226607876 fax: 4822 252300 e-mail: aabr@ipe.pw.edu.pl Abstract The paper discusses the major drawbacks of the matrix
Modelling of cross coupling in a triple microstripline GaAs MMIC
Modelling of cross coupling in a triple microstripline GaAs MMIC D Linton, J G Muirhead The Queen's University of Belfast, The Department of Electrical and Electronic Engineering, Ashby Building, Stranrnillis Road, Belfast, BT9 5AH, N Ireland, UK. Tel: +44 +(0)1232 245133 Fax: +44 +(0)1232 667023 e-mail: d.linton@ee.qub.ac.uk Abstract This paper reports a direct comparison between measurement and
Design of compact-size high isolation branching OMT b-y the mode-matching technique
Design of compact-size high isolation branching OMT b-y the mode-matching technique Naofumi Yoneda, Moriyasu Miyazaki* Masaru Tanaka, Hiromasa Nakaguro** *Antennas Department, . Information Technology R & D Center, Mitsubishi Electric Corporation, 5-1-1 Ofuna, Kamakura, Kanagawa 247, Japan. Phone: Fax: E-mail: +8146741 2532 +81-46741 2519 naofumi@ant.isl.melco.co.jp **Kamakura Works, Mitsubishi