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VARIABLE -LOAD CONSTANT -EFFICIENCY POWER AMPLIFIER FOR MOBILE COMMUNICATIONS APPLICATIONS G.Leuzzi, C.Micheli Dept. Electrical Engineering, University of L'Aquila; Monteluco di Roio, L'Aquila 67040, Italy ­ leuzzi-ing.univaq.it - GAAS 2003 - Session G16 ABSTRACT A SiGe HBT Class-B power amplifier has been developed with a voltage-controlled variable load, for constant efficiency also at low power

Single Supply, High Linearity, High Efficient PHEMT Power Devices and Amplifier for 2 GHz & 5 GHz WLAN Applications Min Park, Hokyun Ahn, Dong Min Kang, Honggu Ji, Jaekyoung Mun, Haecheon Kim, and Kyoung Ik Cho Microwave Device Team, Wireless Communication Devices Department, Basic Research Laboratory, Electronics and Telecommunications Research Institute, 161 Gajeong-dong, Yuseong-gu, Daejeon 305

On the Load-Pull Effect in MMIC Oscillator Measurements Matthias Schott, Friedrich Lenk, and Peter Heymann Ferdinand-Braun-Institut für Höchstfrequenztechnik (FBH), Albert-Einstein-Str. 11, D-12489 Berlin / Germany, Tel.: +49-30-6392-2625, Fax: +49-30-6392-2642 Abstract -- Low phase-noise MMIC oscillators are key components for microwave and mm-wave systems. As a consequence, phase-noise measureme

Noise characterization of a phased array tile E.E.M. Woestenburg, K. F. Dijkstra ASTRON, P.O. Box 2, 7990 AA Dwingeloo, The Netherlands, Tel. +31521595100 Abstract This paper presents the results of a general analysis of phased array noise performance. It introduces an array quality factor that should be taken into account to obtain accurate noise measurement results, in case one of the calibrati

Active load pull with fourth harmonic tuning based on an IQ modulator concept Bernd Bunz (student member, IEEE) and Günter Kompa (member, IEEE) University of Kassel, Fachgebiet Hochfrequenztechnik Wilhelmshöher Allee 73, D-34121 Kassel, Germany, Tel: +49-561-804-6535, Fax: -6529 E-mail: bbunz-uni-kassel.de, http://www.uni-kassel.de/fb16/hft/bunz.html Abstract ­ This paper presents on wafermeasure

A New Method to Obtain Total Power Receiver Equivalent Noise Temperature Beatriz Aja1, Juan Pablo Pascual1, Luisa de la Fuente1, Julio Gallegos2, Eduardo Artal1 1 Universidad de Cantabria. Dpto. Ing. de Comunicaciones 39005 Santander, Spain, Phone:+34 942201391 Ext.11 2 Instituto de Fisica de Cantabria, CSIC-UC. 39005 Santander. Spain used is of the square law type and it produces an output volta

Simulation and Analytical Calculation of the Noise Figure in HEMT Gate Mixers Faiza Amrouche, Rachid Allam, and Jean-Marie Paillot Laboratoire d'Automatique et d'Informatique Industrielle (LAII), Université de Poitiers, IUT Angoulême : 4, Avenue de Varsovie- 16021 ANGOULEME CEDEX ( FRANCE ) Phone : +(33) 545 67 32 28 Abstract -- A simplified analytic expression is developed to predict the noise p

A Simple High-Accuracy Subgridding Scheme Lukasz Kulas1 , Michal Mrozowski2 Gda´ sk University of Technology, n Department of Electronics, Telecommunications and Informatics, ul. Narutowicza 11/12, 80­952, Gda´ sk, Poland, n tel. 1 (+ 48 58) 347 29 17, 2 (+ 48 58) 347 25 49, fax. (+ 48 58) 347 12 28, e-mail: 1 luke-eti.pg.gda.pl, 2 mim-pg.gda.pl Abstract-- This paper introduces a novel method of

Flexible Hybrid MM/MoM Technique for the CAD and Optimization of Arbitrarily Shaped 3D Waveguide Components F. Arndt, V. Catina and J. Brandt1 Microwave Department, University of Bremen, Otto-Hahn-Allee NW1, D-28359 Bremen, Germany, farndt-physik.uni-bremen.de 1 MiG, Microwave Inovation Group, Fahrenheitstr. 1, D-28359 Bremen, Germany Its versatility and efficiency is demonstrated at the examples