Wideband microstrip patch array with low sidelobes and a high polarisation purity for high resolution imaging radars F Rostan, A Heneka, W Wiesbeck Institut flir H6chstfrequenztechnik und Elektronik, University of Karlsruhe, Kaiserstr. 12, 76128 Karlsruhe, Germany. Telephone: +49 721/608-2525 Telefax: +49 721/691865 Abstract The design and the measured performance of a wideband microstrip patch ar

Propagation study for microwave radio systems XPD, interferences, absorptions v Kvicera, J ~olar, J Kerhart, P Cejka* M Mazanek, M Hajny, J Janik, P Pechac** *TESTCOM, Hvozd'anska 3, 14800 Praha 4, Czech Republic. **Czech Technical University, Technicka 2, 16627 Praha 6, Czech Republic. Abstract The analysis of the results from the first year of the long term propagation experiment at 13 GHz line-

Influence of propagation model accuracy on DECT system performance assessments Vittorio Degli-Esposti and Gabriele Falciasecca** Mario Frullone and Guido Riva* **DEIS-University of Bologna. *Fondazione Ugo Bordoni, Villa Griffone, 40044 Pontecchio Marconi, BO, Italy. e-mail: vdegliesposti-deis.unibo.it Abstract A performance evaluation of a DECT (Digital European Cordless Telecommunications) syste

Characterisation and modelling of scatter, attenuation and depolarisation millimetre waves due to foliage A Hammoudeh, R Stephens and MAl-Nuaimi University of Glamorgan, Department of Electronics and IT, Pontypridd, CF371DL, UK. Abstract Several measurements have been made inside an anechoic chamber to examine attenuation, scatter and depolarisation of millimetre wave signals at 20 GHz and 62.4 GH

Verification ofan HBT Gummel-Poon model by power spectrum Lars Bengtsson*, Charlotta Hedenas**, Dale Dawson***, Mikael Garcia*, Iltcho Angelov*, Herbert Zirath* ** *Dep. of Microwave Technology, Chalmers University of Technology, S-412 96 Goteborg, Sweden **Ericsson Microwave Systems AB, S-431 84 Molndal, Sweden ***Northrop Grumman Corp. PO Box 1521 MS 3K13, Baltimore, MD 21203, USA Abstract The

A direct extraction method of heterojunction bipolar transistors small signal equivalent circuits based on S-parameters and noise measurements S J Spiegel Rafael 87, P.Box. 2250, 31021, Haifa, Israel Tel 00-9724-8794358 Fax 00-9724-8792037 Abstract A direct extraction method of the HBT small-signal equivalent circuit based on noise figure and s-parameters measurements is presented. The equivalent

26th EuMC . 9-12 September 1996 . Hotel Hilton Atrium. Prague. Czech Republic Development, implementation and verification of a physics-based Si/SiGe HBT model for millimetre-wave nonlinear circuit simulations S Bruce, A Rydberg*, H Schumacher, U Erben**, J F Luy***, M Karlsteen, M Willander**** *Circuits and Systems Group, Department of Technology, University of Uppsala, Box 534, S-751 21

HEMTs extrinsic noise model for millimeter waves integrated circuits design J M Belquin, F Danneville, A Cappy, G Dambrine Institut d'Electronique et de microelectronique du Nord (IEMN), UMR CNRS N° 9929 Avenue Poincare, BP 69, 59652 Vtlleneuve d' Ascq CEDEX. Tel: (33) 20 19 78 62 Fax: (33) 20197892 E-Mail:Jean-Maxence.Belquin-iemn.univ-Lillel.fr E-Mail: Gilles.Dambrine-iemn.univ-Lillel.fr Abstrac

Influence of alloy composition on the noise behavior of hetero-FETs in millimeter-wave frequency range All Abou- Elnour and Klaus Schiinemann Technische UniversiUit Hamburg-Harburg, Arbeitsbereich Hochfrequenztechnik, Wallgraben 55, D-21073 Hamburg, Germany. Abstract The noise behavior of millimeter-wave Hetero-FETs is investigated by using a rigorous physical simulator which takes into account no

Closed-form expression for the coupling matrix elements related to TMscattering from a symmetric double strip grating Dragan Filipovic, A Vujacic Elektrotehnicki fakultet, University of Montenegro, 81000 Podgorica, Yugoslavia Abstract This paper treats the problem ofTM plane-wave scattering from a planar periodic symmetric double-strip grating placed at a dielectric interface. The formulation is b