Micromachined antennas with reduced effective dielectric constants Rhonda F Drayton Linda P B Katehl and The University of Michigan Radiation Laboratory 1301 Seal Ave. Ann Arbor, MI 48109 (313) 747-1796 or Fax:(313) 747-2106 USA I Abstract The objective of this work is to illustrate the capability to develop low cost microstrip antennas that offer improved performance on high dielectric materials

Arbitrarily shaped microstrip antennas on cylinders R. C. Hall, C. H. Thng and D. I. Wu Boulder Microwave Technologies, Inc. 2336 Canyon Blvd., Suite 102 Boulder, CO, USA, Phone:+303l541-9525,Fax:+303l5419609 Abstract Conformal microstrip antennas are currently of great interest in both the military and civilian sectors. There are, however, few accurate analytical models and "cut and try" design m

A bidirectional configuration Wilfrled Grabherr* and Wolfgang Menzel dual.frequency antenna University of Ulm, Microwave Techniques, 0-89069 Ulm, Germany (*Now with Daimler-Benz Aerospace, Ulm, Germany) Abstract A compact arrangement incorporating sides of a multilayer structure two planar - - on opposite antennas or both a planar antenna and a transition from rectangular waveguide to micro

Microwave power amplifier with "envelope controlled" drain power supply* C Buoll, A Abblatl, D Riccardi Siemens Telecomunicazioni S.p.A. 20060- Cassina de'Pecchi, Italy,FAX 02 95259375 * International Patent Application N° PCT/EP 95/01698 Abstract A microwave power amplifier with -envelope controlled" drain power supply is presented in this paper. The aim of this new concept is the power consum

space borne x-band high power high efficiency hybrid amplifier M ZOYO, C GAL Y*, A DARBANDI**, L LAPIERRE*** and J.F SAUTEREAU**** -Equipe Antennes Dispositifs et Materiaux Microondes, UPS-LGET 118 route de Narbonne 31068 Toulouse, France -Alcatel Espace 26 avoJF.Champoliion 31037 Toulouse -CNES 18 avo Ed.Belin 31055 Toulouse -UPS-LAAS/CNRS 31400 Toulouse Abstract Power amplifiers with high power-

A novel MMIC power amplifier using cascode FET with unequal gate widths Hiloshl Hayashi, Masashl Nakatsugawa, and Masahlro Muraguchi NIT Wireless Systems Laboratories 1-2356 Take, Yokosuka-shi, Kanagawa, 238-03 Japan Abstract A novel MMIC power amplifierthat uses a cascode FET with unequal gate widths is presented. The amplifier uses a new concept of self phase distortion compensation. By enlargi

Trade off analysis between power-added efficiency and linearity on HBT power amplifier C Pinatel, S Vuye, M.Riet C Dubon-Chevalier* B Rojat, A Lermoyer** *FRANCE TELECOM, Centre National d'Etudes des Teh3communications, Centre Paris B Laboratoire de BAGNEUX, 196, Avenue-HenriRavera - BP 107, 92225 Bagneux cedex FRANCE **38 40 rue du General Leclerc, 92131 Issy-Les-Moulineaux FRANCE - Abstract Di

A novel design methodology for microwave true logarithmic amplifiers GianluC8 Acclarl, Franco Giannini and Ern..to Llmltl Department of Electronic Engineering, University of Roma "Tor Vergata- Via delia Ricerca Scientifica, 00133 Roma, Italy Abstract A novel design methodology for True Logarithmic Amplifiers (TLA) operating at microwave frequencies is presented. The method is based on a better ap

Ka-band 20W-class SSP A utilizing MMIC technology for satellite communications M Funada, K Selno, K Taklla, Y Iloh, Q Toyoshlma, T Takagi, M Komaru, H Mlzutamari* H Mlneno, C Ohuchl, T Nlshlgakl, M Takeuchi, M Nishida and H Sallo** *Mitsubishi Electric Corporation 325 Kamimachiya, Kamakura, Kanagawa 247, Japan **Communications Research Laboratory, MPT, Japan 4-2-1 Nukuikitamachi, Koganei, Tokyo 18

Research challenges in future wireless personal communications: microwave perspectives Ram)Prasad Telecommunications and Traffic-Control Systems Group, Delft University of Technology, P.O. Box 5031, 2600 GA Delft, The Netherlands, Tel.: +31-15-782417, Fax: +31-15-781774 E-mail: R.Prasad-ET.TUDelft.NL Abstract Microwave's role is discussed in achieving the Future Wireless Personal Communications (F