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DESIGN OF A WIDE-BAND PHASED-ARRAY ANTENNA FOR THE NEXT GENERATION RADIO TELESCOPES
DESIGN OF A WIDE-BAND PHASED-ARRAY ANTENNA FOR THE NEXT GENERATION RADIO TELESCOPES A.B. Smoldersl, M.J. Artsl, M.EJ. Jeuken2 and M.C. van Beurden2 J Netherlands Foundationfor Researchin Astronomy(NFRA) P.O. Box 2, 7990 AA Dwingeloo, The Netherlands, tel: +31 521595100, fax: +31 521 597332, E-mail: smolders@nfra.nl, Internet: www.nfra.nl 2 Eindhoven University of Technology P.O. Box 513, 5600 MB
ACTIVE ANTENNA POWER AMPLIFIER WITH PBG
ACTIVE ANTENNA POWER AMPLIFIER WITH PBG Vesna Radisic and Tatsuo ltoh Electrical Engineering Department University of California, Los Angeles 405 Hilgard Avenue, Los Angeles, CA 90095, USA ABSTRACT A high efficiency class AB power amplifier integrated with a modified microstrip patch antenna is reported. The second and third harmonics are tuned to obtain high efficiency operation The second harm
A BiCMOS Low Voltage Power Amplifier for Wireless Communications
A BiCMOS Low Voltage Power Amplifier for Wireless Communications Fernando Fortes, J. Costa Freire, Maria Joao do Rosario Instituto de Telecomunicayoes, Instituto Superior Tecnico Av. Rovisco Pais, 1096 Lisboa, Portugal fortes@torga.1x.it.pt, j cf@lx.it.pt, mrosario@a1fa.ist.utI.pt ABSTRACT This paper describes the design and test of a low voltage monolithic power amplifier for DECT specificat
Development of a Si MOS MMIC Power Amplifier with Loss Minimized Design
Development of a Si MOS MMIC Power Amplifier with Loss Minimized Design *Kunitsugu Tanaka, Noriaki Matsuno, Hitoshi Yano, Yasuyuki Suzuki, *Toshiro Watanabe, and Kazuhiko Honjo Optoelectronics and High Frequency Device Research Laboratories, NEC Corporation *Compound Semiconductor Device Division, NEC Corporation 34 Miyukigaoka, Tsukuba, lbaraki 305-8501, JAPAN Phone: +81-298-50-1522, Fax: +81-29
A 3 W X-Band Power MMIC Amplifier with Buried-Plated-Heat-Sink Transistors
A 3 W X-Band Power MMIC Amplifier with Buried-Plated-Heat-Sink Transistors Yoshihiro TSUKAHARA, Yoshinobu SASAKI, Tetsuo KUNII, Katsuya KOSAKI, Toshiaki KITANO, Kenji HOSOGI, Yasunori OKUDA*, Hajime KAWANO**, Takahide ISHIKAWA, and Yasuo MITSUI High Frequency & Optical Semiconductor Division Mitsubishi Electric Corporation 4-1 Mizuhara, Itami, Hyogo, 664-8641 Japan Tel: +81 727847384, Fax: +81 727
MINIATURISED GAAS PHEMT POWER AMPLIFIERS AT KA- AND Q-BAND USING CAPACITIVELY LOADED COPLANAR TRANSMISSION LINES
MINIATURISED GAAS PHEMT POWER AMPLIFIERS AT KA- AND Q-BAND USING CAPACITIVEL Y LOADED COPLANAR TRANSMISSION LINES. Y. Baeyens*, W. Marsetz, A. Hillsmann, H. MassIer, R. Osorio, M. Neumann, M. Demmler, M. Schlechtweg Fraunhofer-Institute for Applied Solid-State Physics, TullastraBe 72, D-79108 Freiburg, Germany *currently with Lucent Technologies, Bell Laboratories, 600 Mountain Avenue, Rm. 1C-413
CHALLENGES IN THz TECHNOLOGY: APPLICATIONS, RECEIVERS AND ANTENNA TESTING
CHALLENGES IN THz TECHNOLOGY: APPLICATIONS, RECEIVERS AND ANTENNA TESTING Antti V. Raisanen Radio Laboratory, Institute of Radio Communications Helsinki University of Technology P.O. Box 3000, FIN-02015 HUT, Finland ara@radio.hut.fi ABSTRACT THz technology is mainly motivated by need of understanding of atmospheric phenomena such as the "ozone hole" and "green house effect" on one hand, and by tha
MICROWAVE AND MILLIMETERWAVE COMMUNICATIONS: STATUS, MARKET, AND FUTURE TRENDS
MICROWAVE AND MILLIMETERWA VE COMMUNICATIONS: STATUS, MARKET, AND FUTURE TRENDS G. CACHIER Thomson-CSF Communications. 160, Bd. de Valmy. BP 82. 92704 Colombes Cedex, France. gerard.cachier@tcc.thomson.fr ABSTRACT Wireless solutions are necessary for mobility, offer competitive advantages for the local loop (transmission path between the subscriber and the network), and will be used for the emerg
RADAR IN THE DUTCH KNOWLEDGE NETWORK
RADAR IN THE DUTCH KNOWLEDGE NETWORKI C. Ie Pair Technology Foundation STW, P.O.B. 3021, 3502 GA Utrecht, The Netherlands. kees@stw.nl ABSTRACT Recently the Technology Program 'Telecommunications-Transmission and Radar' was integrated into the knowledge network of The Netherlands. We describe some features of this network, with focus on the part in which STW is involved. Radar research has a
A NEW ACTIVE BALUN REFLECTOMETER CONCEPT FOR DC TO MICROWAVE VNA APPLICATIONS
A NEW ACTIVE BALUN REFLECTOMETER CONCEPT FOR DC TO MICROWAVE VNA APPLICATIONS F. vanRaay, G. Kompa Fachgebiet Hochfrequenztechnik, University of Kassel, WilhelmshOher Allee 73, D-34121 Kassel, Germany, Tel: +49-561-804-6535, Fax: +49-561-804-6529 ABSTRACT A new reflectometer concept based on a resistive bridge and an active balun is presented. High bandwidth and performance can be achieved by res