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7.12 W/mm (up to 1.7W) CW X-band InGaP/GaAs HBTs: Top Heat Sink and Topology Influence
7.12 W/mm (up to 1.7W) CW X-band InGaP/GaAs and Topology Influence HBTs: Top Heat Sink D. Floriot, S-L. Delage, E. Chartier, H. Blanck, M-A Poisson THOMSON-CSF - Central Research Laboratories Domaine de CorbevilIe - 91404 Orsay Cedex - France Abstract In this paper, we report a 1.7 W output power and 55% PAE at 10 GHz using thermally shunted multi-finger HBTs having a total emitter area of2x24
Ferroelectric films: nonlinear properties and applications in microwave devices
Ferroelectric films: nonlinear properties and applications in microwave devices. A.B. Kozyrev, T.B. Samoilova, 0.1. Soldatenkov, O.Y. Buslov, E.K. Hollmann, V.E. Loginov, A.M. Prudan, G. Koepf*, K. Mueller*, T.Rivkin*, Z. Zhang*. St. Petersburg Electrotechnical University, 5 Prof Popov str, St.Petersburg, ] 97376 Russia Tel/fax + (812) 234-48-09. TeL +(812) 234-89-73 * Superconducting Core T
Glass Air-Gap Transmission Lines on Silicon for Microwave Integrated Circuits
Glass Air-Gap Transmission Lines on Silicon for Microwave Integrated Circuits JeffC-P Chuang, Samir M. EI-Ghazaly, Yong-Hang Zhang Department of Electrical Engineering, Center for Solid State Electronic Research, Arizona State University, Tempe, AZ 85287-5706 Abstract: Two types of air-gap transmission-line structures on silicon substrates have been fabricated using glass microbump bonding (GMBB)
Integrated microwave inductors on Silicon-on-Insulator substrate
Integrated microwave inductors on Silicon-on-Insulator substrate I. Huynen (*), J.-P. Raskin (*), R. Gillon (*), D. Vanhoenacker (*), J.-P. Colinge (**) Microwave Laboratory (*) and Microelectronics Laboratory (**) Universite Catholique de Louvain, Batiment Maxwell B-1348 Louvain-Ia-Neuve, Belgium Fax: +32 10 478705; Tel. : + 32 10 47 40 20 huynen@emic.uc1.ac.be Abstract This paper presents a
New Simple CAD Model For Series Stubs On Planar Printed Transmission Lines
New Simple CAD Model For Series Stubs On Planar Printed Transmission Jack R Bratherton, Roger D Pollard, Stavros Iezekiel, *Michael J Thornton Lines. Microwave and Terahertz Technology Group Departmellt of Electronic and Electrical Engineering The University of Leeds, Leeds LS2 9JT, U.K. Plume +44 II 3 2092 Fcu' +44 113 2032 Email eenjrb@leeds.ac.uk *Filtronic Components Limited Airedale House.
A UHF BANDPASS FILTER ON MICROSTRTP
A UHF BANDPASS FILTER ON MICROSTRTP Eitan Scgall Optomic Microwavcs P.O. box 153 Migdal Ha'Emck 10551, Israel Tel: 06-6545440 fax: 06-6545382 ABSTRACT The design, construction and measurement of a medium bandwidth bandpass filter in the UHF frequency range implemented on a low dielectric constant microstrip substrate is described. A novel distributed filter layout is presented, together with a des
RECENT PROGRESS IN ACTIVE INTEGRATED ANTENNAS
RECENT PROGRESS IN ACTIVE INTEGRATED ANTENNAS Tatsuo Itoh Center for High Frequency Electronics Dept. of Electrical Engineering University of California, Los Angeles Los Angeles, CA 90095-1594 U.S.A. ABSTRACT The role of antennas is increasing and diversifying as the wireless applications proliferated. Active integrated antennas are new technology that integrates planar antennas with active solid
BIOLOGICAL EFFECTS AND MEDICAL APPLICATIONS
BIOLOGICAL EFFECTS AND MEDICAL APPLICA nONS H. D. Rosen, * A. Rosen, and A. Vander Vorst, *** ** Invited Paper ABSTRACT RF/microwaves applications in medicine, particularly in cardiology, urology and surgery are described. Several of the applications have gained worldwide acceptance and are presently used to treat human subjects, while others are currently being researched and developed. To deve
BIOLOGICALLY INSPIRED POLARIZATION-DIFFERENCE IMAGING
BIOLOGICALL Y INSPIRED POLARIZATION-DIFFERENCE IMAGING Nader Engheta1,3,t , J. Scott Tyol,4 , Mickey P. Rowel,3,S , and Edward N. Pugh, Jr.2,3 IMoore School of Electrical Engineering, 2Department of Psychology, 31nstitute of Neurological Sciences University of Pennsylvania Philadelphia, Pennsylvania 19104, U.S.A 4Current Address: Phillips Laboratory/WSQ 3550 Aberdeen SE, Kirtland AFB, NM 87117,
LARGE BANDWIDTH OF NbN PHONON-COOLED HOT-ELECTRON BOLOMETER MIXERS
LARGE BANDWIDTH P.Yagoubov, OF NbN PHONON-COOLED K.Il'in, G.Gol'tsman, HOT-ELECTRON BOLOMETER MIXERS. S.Cherednichenko, Department and E.Gershenzon of Physics. Moscow State Pedagogical University, Moscow 119435, Russia ABSTRACT The bandwidth of NbN phonon-cooled hot electron bolometer mixers has been systematically investigated with respect to the film thickness and film quality variatio