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A New Technique for the Field Analysis of Active FET Devices
A New Technique for the Fi~l~~~alysis of Active FET Devices ~ i . ~ . M. Farina*, G. Gerini*, T. Rozzi* . *Dipartimento , , . ,.!" , ;, . , " " " diElettrqJ),i~~ed Auto~atica, Universita diApcona, ViadelleBrecceBianche,60131,'Ancona,rrALY;" Abstract- We describe a new approach to the rigorous electromagnetic analysis of active FET structures. Propagation characteristics, field and curre
DESlGN of MM-WIVE POWER HEMT by a LINEAR MIC CAD SYSTEM
DESlGN of MM-WIVE POWER HEMT by a LINEAR MIC CAD SYSTEM ;\ ZubkovA.M. ABSTRACT ' Science Research Institute PULSAR, Moscow, Russia Additional analytic formulas for HEMT equivalent circuit parameters calculations and for limitations of the load and generator impedances optimization have been included in a linear microwave IC CAD system. They allow to define the maximum output power and attended
Analysis and Exact Solutions of Relaxation-Time Differential Equations Describing Non Quasi-Static Large Signal FET Models
Analysis and Exact Solutions of Relaxation-Time DitTerential Equations Describing Non Quasi-Static Large Signal FET Models David E. Root Hewlett-Packard Company, 1400 Fountaingrove Parkway, Santa Rosa, CA. 95403, USA Tel: 707577-4091 Fax:707 577-4787 ABSTRACT A relaxation-time differential equation for a non quasi-static large-signal PET model is analyzed and solved exactly in closed form for the
An Integrated Simulation Technique For the Modelling of Lumped Elements Using The TLM Method
An Integrated Simulation Technique For the Modelling of Lumped Elements Using The TLM Method Lutfi Albasha and Christopher M. Snowden Microwave and Terahertz Technology Group Department of Electronic and Electrical Engineering University of Leeds LEEDS, LS2 9JT, UK ABSTRACT A new methodology by which the integration of lumped microwave elements into the three dimensional Transmission line matrix m
EFFICIENT APPROACH TO OPTIMUM NONLINEAR CIRCUIT ANALYSIS
EFFICIENT APPROACH TO OPTIMUM NONLINEAR CIRCUIT ANALYSIS M.C.E. YAGOUB, H. BAUDRAND, Laboratoired'Electronique,ENSEEnIT, 2 RUE CAMICHEL,31071- TOULOUSE, FRANCE. Abstract: This paper describes an optimum approach to nonlinear circuit analysis. The technique consists in determining in the power space, a closed volume including all the allowed powers at terminal ports of the nonlinear device. The bo
ANALYSIS OF SPURIOUS TONES IN MICROWAVE OSCILLATORS VIA THE HOPF BIFURCATION CONCEPT
t . .' , ANALYSIS OF SPURIOUS TONES IN MICROWAVE OSCILLATORS VIA THE HOPF BIFURCATION CONCEPT ; . .~. . -' , . ..' ,,j , ..... ".< " ", .,' ;, ',"', ' ' " , ',-: ~ " , ! ' ., .. Vittorio RJU;OLI (1), Andrea NERI (2)~.andGianfrancoRIG.HI (1) ,I , ' ' -'" ~ , ' " ' ,':' t ~ ,,' . '.: -, 1. ' ' ,"" ',":, " ' (1) (2) Dipartiinento di Elettronica, Infonnatita e Sistetnistica, Un
MICROWAVE OSCILLATOR DESIGN FROM LOAD CYCLE OPTIMISATION, APPLICATION TO MMIC GaAs MESFET OSCILLATOR
MICROWAVE OSCILLATOR DESIGN FROM LOAD CYCLE OPTIMISATION, APPLICATION TO MMIC GaAs MESFETOSCILLATOR Ph. Andre, J.M. Dienot, O.Llopis, R.Plana, M.Gayral, and J.Graffeuil. LAAS-CNRS, 7, Av. Colonel Roche, 31077 ToulouseCedex (France)&. Universite Paul Sabatier, 118, Route de Narbonne, 31071 ToulouSe (France). . Tel (33) 61.33.63.71; Fax (33) 61.33.62.08. Abstract: A non linear microwave oscillator
Ka AND W BAND DIELECTRIC RESONATOR OSCILLATORS
Ka AND W BAND DIELECTRIC RESONATOR OSCILLATORS D. CROS . M. JORDAN. P. GUILLON FRANCE " I.R.C.O.M. . Faculte des Sciences. 123 Avenue Albert. Thomas 87060 ~IMOGES (:edex ABSTRACf In this work, we present results obtained in the design of both a 30 GHz FET oscillator and a 98 GHz Gunn diode oscillator using whispering gallery dielectric resonators modes. The results obtained show the interest of
HIGH EFFICIENCY FEEDFORWARD LINEARIZERS
HIGH EFFICIENCY FEEDFORWARD LINEARIZERS M. T. Hickson, D. K. Paul, P. Gardner* and K. Konstantinou Department of Electrical Engineering & Electronics The University of Manchester Institute of. Science & Teq;hnology (UMlST), UK * School of Electronic & Electrical Engineering, The University of Birmingham, UK ABSTRACT The effective feedforward linearization of a power amplifier can be achieved u
A 2 TO 8 GHz YIG PHASE-LOCKED OSCILLATOR COMBINING ANALOG AND DIGITAL TECHNOLOGY FOR LOW PHASE NOISE AND WIDE BAND OPERATION
7- ACTIVES ,DEVICES AND CIReUITS . C&ar Briso ,Fco J~ Lopez y~CodhInicacioaes De~ento detife.ri8'.4udiOVfsuat, E.U.I.T Telecom~.atioQ Universidad Politknica de Madrid .. . Abstract'.." This work describes a phase locking system using a digital phase-frecuency comparator combined with an harmonic mixer to achieve broad band operation and low phase noise. The system is low cost, easy to adjust a