Single-fed dual band circularly polarised micros trip patch antennas David Sanchez-Hemandez* Georgios Passiopoulos, Ian D Robertson** * Department of Communications Polytechnic University of Valencia Camino de Vera SIN E-46022 Valencia, Spain Tel: + 34 (9) 6 387 7191 Fax: + 34 (9) 6 387 7199 e-mail: dsanchez-dcom.upv.es ** Communications Research Group Department of Electronic & Electrical Enginee

26th EuMC. 9-12 September 1996' Hotel Hilton Atrium . Prague. Czech Republic Modeling of high- T c superconducting coupled micros trip lines on sapphire substrate A Deleniv, M Gubina*, D Kholodniak*, I Vendik Chalmers University of Technology S-41296, Goteborg, Sweden. Fax: +46-(31) 1645 13 e-mail: spartak(-ep.chalmers.se (permanent address: see below). *St Petersburg Electrotechnical University

Nonlinear transmission line as a large signal model for HEMT Byung-Sung Kim, Sangwook Nam Applied Electromagnetics Lab., Dept. of Electronics Eng., Seoul National University, San 56-1, Shinlim-dong, Kwanak-gu, Seoul, 151-742, Korea Abstract This paper presents a new large signal modeling technique for FET devices. The proposed method employs distributed approach using nonlinear transmission line b

Dispersive table-based large-signal FET model validated in analysis ofMMIC frequency doubler I Schmale, F van Raay, G Kompa Fachgebiet Hochfrequenztechnik, University of Kassel Wilhelmshoher Allee 73, D-34121 Kassel, Germany. Tel: +49-561-804-6535 Fax: +49-561-804-6529 E-mail: ingo-hfm.e-technik.uni-kasse1.de Abstract For the first time, we implemented an entirely table-based FET-model on the user

Direct extraction of non-linear intrinsic transistor behaviour from large signal waveform measurement data M Demmler*, P J. Tasker**, M Schlechtweg*, A Hiilsmann* *Fraunhofer Institute for Applied Solid State Physics (IAF), Tullastr. 72, 79108 Freiburg, Germany Phone: +49-761-5159-446 Fax: +49-761-5159-565 E-mail: mdi-iaf.thg.de ** University of Wales Cardiff, Cardiff School of Engineering, Newpor

A universal electrothermal FET model suitable for general large-signal applications Vittorio Rizzoli, Alessandra Costanzo* Giulio Muzzarelli** *Dipartimento di Elettronica Informatica e.Sistemistica University of Bologna, Villa Griffone, 40044 Pontecchio Marconi, Bologna, Italy. **Fondazione Guglielmo Marconi-CRSC Villa Griffone, 40044 Pontecchio Marconi, Bologna, Italy. Abstract A new general-pur

Performance and electromagnetic compatibility analysis of antennas for hand held mobile telephones Han Shtrikman, Herbert Lindenborn and Henning Fruechting. RF-Techniques / Communication Systems University of Kassel, 34121 Kassel, Germany. E-mail: shtrikma-hfk.e-technik.uni-kasse1.de Abstract The Finite Integration Algorithm (FIA) is used for the analysis of the Monopole and Radiation-Coupled Dual

Analysis of DCS-1800 portable phones with micros trip antennas R Dlouhy* R Hillermeier, G Schaller Laboratories for High Frequency Technology, University Erlangen-Niirnberg Abstract Two different hand-held phones operating at 1.8 GHz are numerically analyzed, applying a finite-integration field calculation program. One phone contains a back-mounted microstrip double patch antenna (BMMDPA), the oth

Two prototypes of adaptive antenna receivers for mobile systems J I Alonso, J M BIas, J Ramos L E Garcia, J Grajal, J de Pablos J Gismero and F Perez. Dpto. Senales Sistemas y Radiocomunicaciones E.T.S.!. Telecomunicaci6n. U.P.M Ciudad Universitaria, sin. 28040 Madrid SPAIN. Phone: 34-1-3367366 Ext. 481 Fax: 34-1-3367362 E-mail: ignacio-gmr.ssr.upm.es Abstract An antenna system including antenna e

Validity of the CCIR amplitude scintillation model for satellite uplink and downlink communication links with reference to small terminal operation at EHF John Haddon Matra Marconi Space UK Ltd., Abbey Works, Titchfield, Fareham, Hants, England. Abstract Amplitude scintillation's on satellite communication downlinks are well characterized by the CCIR scintilation model which is now defined in the