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TWO TERMINAL CHARACTERIZATION OF MICROWAVE MONOLITHIC ELEMENTS
TWO TERMINAL CHARACTERIZATION OF MICROWAVE MONOLITHIC ELEMENTS Christopher M Snowden, Gary P Doades, Michael J Howes and David V Morgan ABSTRACT The characterization technique described allows microwave devices such as MESFETs and TEDs to be readily investigated providing information on the operating conditions and device-circuit interaction. Planar devices are modelled due to their role
AN INTEGRATED SCATTERING- AND NOISE PARAMETER MEASUREMENT SYSTEM
AN INTEGRATED SCATTERING- AND NOISE PARAMETER MEASUREMENT SYSTEM W.A.M. Beuwer ABSTRACT By addition of noise measuring equipment to an existing semi-automatic Network Analyser System, Scattering and Noise Parameters of linear twoports can now accurately be measured in a relative easy and fast way, over a frequency band from 1,8 - 18 GHz. To reach this goal an HP9845B desktop comp
A SIMPLE MULTIPORT REFLECTOMETER USING FIXED PROBES AND AN ADJUSTABLE ATTENUATOR
A SIMPLE ATTENUATOR MULTIPORT REFLECTOMETER USING FIXED PROBES AND AN ADJUSTABLE Ulrich Stumper ABSTRACT A simple microwave multiport network for the determination of complex reflection coefficients is described. It is characterized by the detection of the standing wave pattern generated by the unknown load through an adjustable attenuator, by means of a number of fixed probes. With this
A HOMODYNE NETWORK ANALYZER WITH IMAGE ERROR CORRECTION
A HOMODYNE NETWORK ANALYZER WITH IMAGE ERROR CORRECTION OLAF OSTWALD and BURKHARD SCHIEK ABSTRACT: In homodyne network analyzer systems the most important errors are caused by an inadequate suppression of the image sideband. A procedure is described which determines the complex magnitude of the image sideband via calibration measurements and eliminates the corresponding image errors. T
LANGE-COUPLER USING MICROSTRIPS ON ANISOTROPIC SUBSTRATES
LANGE-COUPLER USING MICROSTRIPS ON ANISOTROPIC SUBSTRATES Adaildo Gomes d'Assun~ao* and Attilio Jose Giarola+ ABSTRACT An analysis of the effect of the substrate's dielectric anisotropy on the characteristics of the Lange-coupler is reported. The geometry and phase velocities of the 3 dB and 50 ~ Lange-coupler are presented for the 'Epsilam-lO' (anisotropic substrate) and for other dielectric
A VERY BROADBAND MICROWAVE DISTRIBUTED AMPLIFIER USING FETs
A VERY BROADBANDMICROWAVEDISTRIBUTED AMPLIFIER USING FETs G. Nwa.£gt1 and C.S. Aitchison ABSTRACT This paper describes the design and performance of a single ampl~fier which uses artificial transmission line techniques. 5dB IdB over the band 2 GHz to 7! GHz has been obtained agrees with prediction. - - MESFET A gain of a result which stage
Ku-BAND TUNNEL DIODE AMPLIFIER FOR THE INTELSAT-V COMMUNICATION SATELLITES
Ku-BAND TUNNEL DIODE AMPLIFIER FOR THE INTELSAT-V COMMUNICATION SATELLITES Dr. P. T. Ho FORD AEROSPACE& COMMUNICATIONS ORPORATION C Western Palo Development Alto, California Laboratories 94303 Telephone (415) Ext. 494-7400 5803 ABSTRACT A space noise qualified receiver noise Ku-Band amplifier, figure tunnel which diode provides amplifier 14 presently is described. used in the This low
BROADBAND DESIGN OF MICROWAVE POWER MESFET AMPLIFIERS USING NEGATIVE FEEDBACK TECHNIQUES
BROADBAND DESIGN OF MICROWAVE NEGATIVE POWER MESFET AMPLIFIERS USING FEEDBACK TECHNIQUES (*) F. PEREZ, V. ORTEGA ABSTRACT A new method universal is presented network. which - allows the design of a medium avalaible power MESFET amplifier stage in the 3.7 feedback 4.2 GHz communication band using a simple and Using a commercially Nippon Electric - Co. NE-464194 MESFET, an amplifi
MICROWAVE BALANCED AMPLIFIERS
MICROWAVE BALANCED AMPLIFIERS G.V. Petrov x ABSTRACT Characteristics of two-strip and tandem directional couplers and one-stage microwave balanced amplifiers are presented if input VSWR and isolation of directional couplers are not equal unity and infinity. Influence of Q-factor of microstrip lines of directional couplers and reflection coefficients of terminations on characteristics of directio
NEW MODULAR CONCEPT FOR PHASE-LOCKED RF OSCILLATORS
NEW MODULAR H. Bernhard, CONCEPT G. OrtkraB, FOR PHASE-LOCKED K. Vogel RF OSCILLATORS ABSTRACT This paper deals with carrier supplies for radio relay systems which are performed using a frequency modular design that offers a high degree of flexibility. Each carrier supply contains two modules, a synchronization module and various voltage controlled oscillator modules for different frequency ra