A very broad-band analog phase shifter covering four frequency octaves N Fel, C Guimard, M Wittmer et E Dupont-Nivet. CEA, Etablissement de Bruyeres-Ie-Chatel, BP12, 91680 Bruyeres-Ie-Chatel. Abstract A monolithic very broad-band phase shifter has been designed and fabricated with a 0.2 micron HEMT technology. The architecture of this phase shifter is based on vector modulation. Measurements demon

A LO-rejecting balanced upconverter for communication systems Herbert Zirath* **, IlchoAngelov*, Christer Karlsson*, Niklas Rorsman** *Department of Microwave Technology, Chalmers University of Technology, S-412 96 Goteborg, Sweden * *Ericsson Microwave Systems AB, S-43 1 84 Molndal, Sweden Abstract An LO-rejecting millimeterwave balanced resistive HFET-upconverter based on a dual FET configuratio

A pseudomorphic HEMT monolithic KBand VCO Mourad Ahdjoudi* AU Boudiaf** Pierre Pouvil* *Ensea-Emo, 6 Av du Ponce au, 95014 Cergy Tel (33-1) 30 736610 Fax (33-1) 30736627 **Universite de Marne-la-Vallee, 2 rue de Ia Butte verte, 93166 Noisy-Ie-Grand, France Abstract An appropriate nonlinear design methodology based on the optimisation of the load cycles, using the facilities of a commercial harmoni

Comparison of flip chip and wire bond interconnections and the technology evaluation on 51 GHz transceiver modules G Baumann*, D Ferling**, H Richter** *ALCATEL Telecom, Mannheimerstr. 22b, D75179 Pforzheim, Germany **ALCATEL Telecom, Lorenzstr. 10, D-70435 Stutgart, Germany Abstract On test vehicles realized in flip chip and wire bond versions, RF-measurements up to 70 GHz had been performed. The

Generalised model for prediction and synthesis of negative capacitance at microwave frequencies using commongate MESFET Jason D Drew, Izzat Z Darwazeh and Brett Wilson. Dept of Electrical Eng & Electronics, University of Manchester Institute of Science & Technology (UMIST), PO Box 88, Manchester, M60 lQD, UK. (E-mail: dj-fs2.ee.umistac.uk; I.Darwazeh & B.Wilson-umistac.uk) Abstract Newly-derived e

Low phase-noise tunable oscillators using magneto static wave resonators G Verstraeten* J Marien* F Coromina** 33,B2660 Hoboken,Belgium Tel.:32 3 8295774 Fax:32 3 829 5502 **European Space Agency, Estec, Postbus 299,2200 AG,Noorderwijk Zh,The Netherlands Tel.:3171656565 Fax.:3171656040 Abstract Two low phase-noise tunable oscillators were realised using magnetostatic wave (MSW) resonators. Operati

A 40db gain single chip pulse amplifier for particle detection F Giannini, S Ciorciolini, G Orengo Dipartimento di Ingegneria Elettronica Universita di Roma "Tor Vergata" Via della Ricerca Scientifica 00133, Roma, Italy. Abstract A very high gain front end amplifier for detection of cosmic rays in nuclear physics has been realised with the 0.5 µm GaAs MESFET technology of the Alenia foundry. Beca

A low noise and low cost YIG-oscillator in the frequency range from 4.5 GHz to 12 GHz Thomas Musch Ruhr Universitat Bochum, Institut fur Hochfrequenztechnik, Universitatsstrabe 150, D-44780 Bochum, Germany Abstract A low noise and low cost YIG-oscillator has been developed. In order to achieve a good phase noise performance it has been simulated employing only the linear scattering parameters of t

GaAs MMIC power amplifiers for GMSK based GSM/DCS-1800 applications J Imbornone, M Murphy, J P Carney, P Nagle, S Mitchell, R S. Donahue, K Pierzynski, A Imhoff, R Giacchino, C Jones, U Eramo M/A-Com Microelectronics Division, IC Product Development, 100 Chelmsford St., Lowell, Massachusetts 01853-3294 Abstract The design and development of subscriber power amplifiers for GMSK based GSM (Global Sy

Application of microwave discharges for treatment of polymer surfaces I V Jovanovic *, D R Popovic*, S S Manola*'**, B Tomcik** and Z lJ Petrovic*'** *MTT INFIZ, Belgrade, Pregrevica 118, 11080 Zemun, Yugoslavia "Institute of Physics, University of Belgrade, POB 57,11001 Belgrade, Yugoslavia Abstract In this paper we analyze application of a simple microwave cavity discharge on the surface modific