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Determination of the equivalent circuit parameters for an M-way radial waveguide combiner/divider
Determination of the equivalent circuit parameters an M-way radial waveguide combiner/divider Marek E. Bialkowski *, Vesa P. Waris** for * Microwave and Antenna Group, Dept. of Electrical & Computer Eng., University of Queensland, Queensland 4072, Australia, TEL. +617365 3563, FAX:+617 365 4999. Mile Rocks, * * MITECLtd.Australia,2123 Hasp St ,Seventeen Queensland4073, Australia Abstract A fiel
Suppression of unwanted modes in tunable microstrip ring resonators
Suppression of unwanted modes in tunable mlcrostrlp ring resonators P. Gardner and D.K. Paul Department of ElectricalEngineering & ElectronicsThe Universityof Manchester Instituteof Science & Technology POBox 88. Manchester. United Kingdom. M60 1QD Tel: +44 (0)61 200 4691 Fax: +4410)61 2004820 e-mail dkp@fs5.ee.umist.ac.uk Abstract Tunable microstrip ring resonators are simple to integrate in MIC
Measurement of complex dielectric constant of sand and dust particles as a function of moisture content
Measurement of complex dielectric constant of sand and dust particles as a function of moisture content Babau R. Vishvakarma and C. s. Rai Department of Electronics Engineering, Institute of Technology, Banaras Hindu University, Varanasi - 221 005 Abstract Experimental Investigations were carried out to measure the complex dielectric constant of dry and moist soil samples (sand, silt & clay) at 1
Natural electromagnetic modes in cylindrical waveguide junction and their use for nondestructive microwave measurements of materials electromagnetic characteristics
Natural electromagnetic modes in cylindrical waveguide iunction and their use for nondestructive microwave measurements of materials electromagnetic characteristics Zyvagintsev Anatoly Alexander., Strizhachenko Alexander Vladimir.. * Kharkov University, Chief of Microwave Physics Department, Freedom Square, 4, 310077 KharkovUkraine. Tel:office, (0572) 45 73 19, private 10572) 4794 73 Physics Depar
Microwave radiometers optimized for noise measurements on High-Tc superconductors
Microwave radiometers optimized for noise measurements on High- Tc superconductors v. Muhlhaus, B. Schiek Ruhr-Universitdt Bochum, Institut fur Hochfrequenztechnik, Universitatsstrabe 50, 44780 Bochum,GermanyTel.+ 49 234 1 7006487, FAX+ 49 234 7094 167 Abstract It has been shown that High-Tc superconducting thin films are suited for a variety of microwave circuit functions. However the noise prop
A method of evaluating the temperature dependences of dielectric resonators and materials
A method of evaluating the temperature dependences of dielectric resonators and materials Yoshio KOBAYASHI, Yoshinori Masayuki KATOH KOGAMI, and Department of Electrical and Electronics Engineering, Saitama University, Shima-Okubo 255, Urawa Saitama 338, Japan Abstract The intrinsic temperature coefficient of the resonant frequency TCf0, which is defined as the temperature coefficient of a reson
Measurements of material and circuit properties using a microstrip ring-resonator circuit on zirconia at 77K.
Measurements of material and circuit properties using a microstrip ring-resonator circuit on zirconia at 77K. M.W. Hosking., B.A. Tonkint, Y.G. Proykovat. A. Hewitt., N.MeN. Alford # , T.W. Button#. S.J. Penn#. * School of Systems Engineering, Universityof Portsmouth. t Dept. of Applied Physics and Physical Electronics, University of Portsmouth. # ICI Superconductors, Billingham. Abstract By us
A compact, wide-band, variable phase shifter for reconfigurable satellite beam forming networks
A compact, wide-band, variable phase shifter for reconfigurable satellite beam forming networks F. AlessandriO, M. MongiardoO, R. Ravanelli 06100 Perugia,ItalyTEL39 75 5852661, FAX 1\ °lstituto di Elettronica, niversita Perugia,S. LuciaCanetola, 1U di 3975 5852654, e-mail:mongiard@ipgaixunipg.it I\Alenia Spazio S.pA, Rome,Italy Abstract A new design is introduced for planar variable power divid
Circuit and antenna properties of diodes mounted in inset dielectric guide
Circuit and antenna properties of diodes mounted in inset dielectric guide S.R. Pennock"', Y. Weizhong'" and T. Roz:z:i"'t * School of Electronicand ElectricalEngineering, Universityof 80th, Cloverton Down, 80th, BA2 lAY, UK. t Dipartimento di Elettronicaed Automatica, Universitadegli Studi di Ancona, 60131 Ancona, Italy Abstract A packaged detector diode has been mounted in Inset Dielectric Guide
High integrity, phase shift activated microwave switching system
High integrity, phase shift activated microwave switching system Harold Shnitkin Norden Systems,Inc. (United Technologies!, P.O. Box 5300, Norwalk, CT. 06856, USA (2031852-5304/Fax 12031852-7721 Abstract A new type of microwave multiport switch is presented. This switch performs high power selective switching into N-output ports using an N-way power divider, N-microwave phase shifters and an N-wa