EFFICIENT mGH POWER AMPLIFIERS WITH TRANSMISSION POWER CONTROL FUNCTION Hiroshi Okazaki, Takashi Ohira, and Katsuhiko Araki NIT Network Innovation Laboratories I-I Hikarinooka, Yokosuka, KANAGAWA, 239-0847 JAPAN E-mail: okazaki-wslab.ntt.co.jp Abstract - A new switchless scheme of transmission power control (TPC) function for high power amplifiers (HPAs) is proposed. Ku-band amplifier MMICs th

A New Practical Harmonics Tune for High Efficiency Power Amplifier T. Heima, A. Inoue, A. Ohta, N. Tanino and K. Sato High Frequency & Optical Semiconductor Division Mitsubishi Electric Corporation . Tel: +81-727-84-7375, Fax: +81-727-80-2694, E-mail: heima-lsi.melco.co.jp Abstract This paper describes a new practical harmonics tune (Tuned B), in which 2nd harmonic is open and 3rd harmonic is sho

DESIGN RULES FOR HIGHLY EFFICIENT POWER AMPLIFIERS BY LOW VOLTAGE SUPPLIES LUISRamos Gomes* and Jose Carlos Pedro** * - Network Quality - Radio Performance Group - TELECEL eMail-gomesl-telecel.pt ** - lnstituto de Telecomunica~6es - Universidade de Aveiro eMail- jcpedro-ieee.org Abstract - This paper presents a comprehensive set of design rules for highly efficient power amplifiers driven by low v

A 50% PAE K-Band Power MMIC Amplifier lunichi Udomoto, Takao Ishida, *Akira Akaishi, **TsunehikoAraki, **Naoto Kadowaki, Makio Komaru, and YasuoMitsui High Frequency & Optical Semiconductor Div., Mitsubishi Electric Corporation 4-1 Mizuhara, Itami, Hyogo, 664-8641 Japan Tel: +81 727847230, Fax: +81 727802690, E-mail:udomoto-lsi.melco.co.jp *Kamakura Works, Mitsubishi Electric Corporation 325 Kamim

Enhancement Mode PHEMT for Single Supply High Efficiency Power Amplifiers Y. Tkachenko, A. Klimashov, C. Wei, Y. Zhao and D. Bartle Alpha Industries. Inc., 20 Sylvan Rd, Woburn, MA 01801 Tel: 781-935-5150; E-mail: gtkachenko((~alphaind.com; WWW: http://www.alphaind.com Abstract - An enhancement mode power PHEMT technology is demonstrated as a viable alternative to an HBT for single supply high e

AN EFFICIENT RESONANT MICROSTRIP FEED-THROUGH FOR CERAMIC PACKAGE INTERCONNECT AT MILLIMETER WAVE FREQUENCIES Simon Damphousse Nortel Networks PO BOX 3511 Station C Ottawa ON K1Y 4H7 Canada. eMail: simond-nortelnetworks.com WWW: http://www.nortelnetworks.com A b s t T act. An efficient resonant microstrip feed. through! is presented for ceramic package design at millimeter wave frequencies. A sca

A novel right angled microwave transition A L Hume, M Dean and G J Ball DERA Malvern Room PD205, DERA, St Andrews Road, Malvern, WORCS, WR14 3PS, UK Tel 01684 895059, email ahume-dera.gov.uk Abstract - A novel microwave transition is described, comprising a microstrip line inserted through a slotline. It makes use of electromagnetic coupling between two orthogonal substrates. No metal to metal c

ENCLOSURES SHIELDING EFFECTIVENESS EV ALUA TION BY MODULATED SCATTERING MEASUREMENTS R. Azarol, S. Caorsi2 1 Department of Biophysical and Electronic Engineering University of Genoa, Via Opera Pia ll/A, 16145 Genova - ITALY Tel. +39010 3532245, Fax +39 0103532777, e-mail: azaro-dibe.unige.it 2 Department of Electronics University of Pavia, Via Ferrata 1, 27100 Pavia - ITALY Tel. +390382505661, Fax

AN INTERACTIVE PROCEDURE FOR ENVIRONMENT MONITORING OF ELECTRIC FIELD DISTRIBUTIONS D. Trincherot, R. Tasconet, I. Cerato*, I. Riccardi* (t) Dipartimento di Elettronica and CESPA (CNR), Politecnico di Torino C.so Duca degli Abruzzi 24, 10129 TORlNO (Italy) (*) Dipartimento di Cuneo, Sezione Fisica, ARPA Piemonte via Massimo d'Azeglio 4, 12100 CUNEO (Italy) Phone: +39-011-5644161, Fax: +39-011-5644

Ka BAND QUASI OPTICAL TEST BENCH USING FOCUSING HORNS M. Le Goff, J.L. Le Bras, B. Deschamps, D. Rozuel, D. Bourreau, A. Peden Laboratoire d'Electronique et des Systemes de Telecommunications (LEST) - UMR CNRS 6616 ENST de Bretagne - Technop61e Brest lroise - BP 832 - 29285 BREST CEDEX e-Mail: Alain.Peden-}enst-bretagne.fr WWW :http//www.enst-bretagne.fr Abstract - This paper presents a measureme