NEW CONCEPTS OF MICROWAVE (INVITED PAPER) CIRCUITS OPERATING AT INCREASED TEMPERATURES Hans L. Hartnagel Technische Hochschule Darmst;adt Institut fUr Hochfrequenztechnik Merckstr. 25, 64283 Darmstadt Germany ABSTRACf Microwave Circuits can operate with relatively wide-bandgap compound semiconductor materials. The possibilities are reviewed, particularly also in connection with sensing applica

POWER FETs FAMILIES. CAPABILITIES AND LIMITATIONS FROM 1 TO 100 GHz Y. CROSNIER Institut d'Electronique et de Microelectronique du Nord U.M.R. C.N.R.S. 9929 - Cite Scientifique Avenue Poincare - B.P. 69 59652 VILLENEUVE D'ASCQ CEDEX - FRANCE. ABSTRACT The considerable explosion these last three years of power MMICs based on the pseudormorphic GaInAs channel (PM HEMT) has crown the leader position

SPECTRAL DOMAIN ANALYSIS OF MULTICONDUCTOR, LOSSY ANISOTROPIC STRUCTURES MULTILAYERED, Rafael R. Boix Grupo de Microondas. Departamento de Electronica y Electromagnetismo. Universidad de Sevilla Avda. Reina Mercedes sin. 41012. SEVILLA (Spain) Tfno. 95-4552891. Fax. 95-4239434. E-mail. [boix-obelix.cica.es). ABSTRACT In this paper, the author briefly revises the application of the spectral dom

LOW FREQUENCY NOISE PROPERTIES OF MICROWAVE TRANSISTORS AND THEIR APPLICATION TO CIRCUIT DESIGN J. Graffeuil and R. Plana LAAS-CNRS and Universite P. Sabatier de Toulouse 7 avoColonel Roche 31077 Toulouse Cedex FRANCE ABSTRACT. A knowledge of low frequency (L.F) noise in FET's, HBT's and others related devices is essential in designing oscillators, multipliers, mixers and broadband amplifiers. Ph

MODELLING AND DESIGN CIRCUITS: FROM 2 TO 3D Roberto Sorrentino University of Perugia Italy OF MILLIMETREWAVE PASSIVE ABSTRACT With the advances of microwave and millimetrewave circuit technology, fullwave electromagnetic approach has become necessary to model a number of phenomena (proximity effects, package interaction, crosstalk, etc.) dependent on complicated 3-D circuit configurations (mul

MR. N94iOfi2 (EuMC 94) GaAs MMICs FOR CORDLESS and CELLULAR TELECOMMUNICA nONS: THE FIGHT AGAINST SILICON ODDS Marc ROCCHI LEP / Philips Microwave Limeil, 22 avenue DesCllI1es, 94453 Limcil-Brevannes, (lei. 33.1.45.10.fi8.96, fax. 33.1.45.10.69.59) France ABSTRACT For a few years now the civil market for GaAs MMICs has budded into application niches such as 12 GHz DBS downconverters. The next l

APPLICATION OF HIGH-TEMPERATURE SUPERCONDUCTIVITY TO ANTENNA ARRAYS WITH ANALOG SIGNAL PROCESSING CAPABILITY Heinz J. Chaloupka University ofWuppertal- FB 13 Postbox 100127 D 42097 Wuppertal- FR Germany ABSTRACT Microwave applications of HTS can in principle take advantage of the extremely low conductor losses, the nonlinear response of the conductivity in high fields and of the Josephson effects.

MICROWAVE OPTO-ELECTRONICS: AND FUTURE PROSPECTS A. J. Seeds PRINCIPLES, APPLICATIONS Department of Electronic and Electrical Engineering, University College London, Torrington Place, London, WCIE 7JE, England. ABSTRACf The low-loss, wide bandwidth capability of optical fibre transmission systems makes them attractive for the distribution and processing of microwave signals. This paper will re



Teaching of medical and industrial applications of microwaves at the technical university of Gdansk K. Nyka, M. Okoniewski, M. Mrozowski, P. Jagielski, W. Adamski, s. Lefeuvere*, M. Penkowski, A. Haczewski, P. Debicki. Technical University of Gda'nsk, Deportment of Electronics, 80-952 Gdansk, Poland, tel.: +1048 581472 549, fox: +(048 581 47 12 28 D'informatique et D'Hydraulique de Toulouse, Franc