Achievements Amplifiers and Prospects of Microwave Distributed Hans L. Hartnagel * Abstract A very successful example of Microwave Monolithic Integrated Circuits is the Distributed Amplifier (D.A.). It employs a number of amplifying elements positioned periodically between input and output transmission lines. The device parasi tics, normally matched using conventional filter techniques, become t

REVIEW OF MIILLIMETER STANDARDS AND NEW TRENDS IN PROCEDURES OF SIX-PORT REFLECTOMETER L. ERARD* ABSTRACT First, noise brief a review of the millimeter standards, power-attenuationin use in the main national labora- and reflectIon coefficient, tories is made. Then a description of the six port reflectometers realized or under realization is performed. The main calibration procedures fro

MIMIC--AN OPPORTUNITY THAT MUST NOT BE MISSED Eliot D. Cohen* ABSTRACT The Microwave and Millimeter Wave Monolithic Integrated Circuits (MIMIC) program, sponsored by the United States Department of Defense (DoD), provides the resources and structure that will make it possible to transition the results of many years of productive research and development in gallium arsenide technology into a manuf

SYSTEM DESIGN, APPLICATIONS AND DEVELOPMENT TRENDS IN THE MILLIMETER-WAVE RANGE Holqer H. Meinel Abstract * The advent of reliable and efficient solid-state sources as well as the proqress in low-cost inteqration procedures, i.e. Hybrid- and Monolithic-Inteqration Techniques, respectively, has made millimeter-wave technology mature and available today. Two major types of applications have to be

ANALYSIS AND OPTIMIZATION OF A CLASS OF TWO-DIODE MICROWAVE OF THEI R EQUI VALENT SI NGLE-DI ODE MI XER MODELS MI XERS BY MEANS Miroslaw E. Adamski * and Marek T. Faber * ABSTRACT A class of two-diode microwave mixers (called "magic T") is defined and its equi valent single-diode models are developed. The models are used at nonlinear. linear and noise steps of the analysis to predict mixers

OPTIMIZING VTO-MESFET AT MICROWAVE FREQUENCIES A. Tazon ABSTRACT *, A. Mediavilla *, J. L. Garcia * This paper present a method of multiharmonic optimization to varactor tuned oscillators (VTO). For this purpose we have developed a formulation in matrix form based on an analytical gradient algorithm. After this study, we have made a small signal analysis of a VTO and, with this starting p

CALCULATION OF THE RESPONSE OF A NONLINEAR MICROWAVE SYSTEM TO MULTITONE INPUT SIGNALS: A CAE APPROACH Niranjan Kanaglekar and John Baprawski* ABSTRACT A new technique for calculating the output intermodulation spectrum of a cascaded nonlinear microwave system for a given multitone input signal is described. Data requirements for nonlinear two-ports in the system, calculation and characterizati

A Time-Domain Large-Signal Analysis of GaAs MESFET Devices Incorporating for Termination Voltages (Voltage Substitution Method) Frequency-Domain Expression Masami Akaike * [ABS1RACT] A nonlinear large-signal analysis is proposed, in which different impedances are connected to the external circuits for different frequencies. Analysis of the performance characteristics of frequency doublers, hi

SIMULATION OF MICOOWAVEDIODE MIXER IN'l'ERMJDULATION DISTORTION Zhang Xiang-dong *, Hong Xing-nan *, Gao Bao-xin * ABSTACT To simulate intermodulation distortion of diode mixers, a new analysis method is used, which combines the modified Volterra series representation method with large signal numerical technique, and a new kind of junction capacitance model is also used. The method is simple a

TWO-VIMENSIONAL ANALYSIS OF SLOW-WAVE PROPAGATION IN SUBMICRONIC MESFET. * * A. BENGHALIA , V.BAJON* , H. BAUVRANV. ABSTRACT: An accurate two-dimensional analysis for the determination of depletion layer profile using Green's functions in MESFET has been done. Then a small-signal approach to obtain the inter-electrode impedance is presented whichermits the p study of the slow-wave propagation