PLANAR QUASI-OPTICAL CIRCUIT TECHNOLOGY (INVITED PAPER) Tatsuo Itoh* ABSTRACT Recent advances in planar integrated circuit configurations implementing the quasioptical concepts and functions accompanied by several groups in the U. S. are summarized. As the frequency of operation is increased toward millimeter-waves and beyond, new circuit configurations are needed to meet a specific challen

MONOLITHIC MICROWAVE INTEGRATED CIRCUITS FOR TELECOMMUNICATIONS Christian RUMELHARD ABSTRACT In a first part, a review of basic monolithic circuits which are used in telecommunications under 20 GHz is done: low noise amplifiers, voltage controlled oscillators, phase shifters and mainly the mixers which are specific to this application. Then, some examples of circuits working at higher frequencie

RECENT RESULTS IN NON-LINEAR MICROWAVE CIRCUIT ANALYSIS M.I. Sobhy, E.A Hosny, Y A.R EI-Sawy, A.A. Nasser, AK. Jastrzebskit ABS1RACT: This paper is a review of the available methods of microwave circuit analysis and will concentrate on non-linear networks as linear networks are considered a subclass of general non-linear networks. Recent developments include the analysis of chaotic circuits

u Advanced CAD-Procedure Systems rer the Deslc.amt AppUcated SllDulatten of Autonomic to an Intearated Microwave 0Jmted by Oscillator Paper) B. Roth; A. Beyer, Seld.or Member IEEE o. Abatnct This paper adresses a numerical simulation method containing field theoretical results for passive structures which, is able to analyze a technical usable microwave and millimeterwave oscillator in

TWO- TERMINAL DEVICES IN MILLIMETER-WAVE RANGE: PHYSICAL ANALYSIS AND FUTURE TRENDS. P. A. Rolland, M. R. Friscourt, C. Daile, D. Lippens, N. Haese. ABSTRACT This paper reviews the advance made in the performance of millimeter-wave two-terminal devices. mainly Gunn. IMPATT and resonant-tunneling diodes. on the basis of the semiconductor material systems used (Si. GaAs. InP). 

MERGENCE OF MICROWAVE AND OPTICAL TECHNOLOGIES IN COMMUNICATIONS A KUCHAR ABSTRACT In this paper, 'we examine the trend to symbiosis and convergence of microwave, optoelectronic and lightwave technologies in communication and other closely related systems, such as radars. We outline the bandwidth limitations of optical fibre links employing semiconductor optical sources and detectors and review



NEW HORIZONS STRUCTURES IN NUMERICAL TIME DOMAIN MODELLING OF MICROWAVE Wolfgang J.R. Hoefer* ABSTRACT In this paper, a number of new developments in time domain modelling of electromagnetic fields and their potential impact on computer-aided design of microwave circuits will be described. After a brief discussion of general field modelling issues, and a brief summary of Transmission Line Mo

ADVANCES IN MICROWAVE MEASUREMENTS Dr. Stephen ABSTRACT Historically there has been four distinct architectural developmental phases of electronics measurement instruments. First we had purely analog types, then the read-out indicator was upgraded to a digital meters during the seventies, the mi croprocessor was running all aspects of an instrument, through the use of digital processing. Finally,

NOISE CHARACTERISTICS OF MILLIMETER-VAVE HEMT AMPLIFIERS Madhu S. Gupta*, John R. Grebliunas**, and D. Narayanadas** ABSTRACT Extensive measurements of the noise properties of a low-noise mm-wave HEMT amplifier are carried out, as a function of the dc operating point of the active devices. These are used to determine the bias-dependence of the noise characteristics, and the relationsh