CASCADE SYNTHESIS OF LUMPED AND DISTRIBUTED NETWORKS BY MEANS OF THE MINKOWSKI MODEL OF LORENTZ SPACE E Folke Bol inder ABSTRACT The Minkowski model of three-dimensional Lorentz space with its submodels of two-dimensional hyperbolic space, namely the Cayley-Klein model, the polar Poincare model (the Smith Chart), and the rectangular Poincare model (the Z-plane), can be used both constructivel

PHASED ARRAYS - CURRENT TECHNOLOGY AND FUTURE PROSPECTS J.R. FORREST The paper reviews the basic techniques of electronic scanning in phased arrays and identifies current implementations of those techniques. The applications most suited to phased arrays are discussed for both radar and satellite communications. The role of microwave semiconductor devices in future active arrays and the import

RF SYSTEMS FOR IARGE PARI'ICLE ACCELERA'IORS G. DOrre * ABSTRACI' General trends of RF systems for energy are reviewed, with special particle accelerators of ever-increasing emphasis on the CERN accelerators. 

RECENT ADVANCES IN MUL TIBEAM ANTENNAS ¥ P. FOLDES ABSTRACT An overall survey of the multibeam spacecraft antenna technology is given on the basis of recent theoretical and experimental work at GE's Space Systems Division. Results are included for a 3.53 m diameter, offset fed paraboloid illuminated by a 16 reconfigurable feed in the 5.925-6.725 GHz frequency band. The paper is based in part on

ADVANCES IN MICROWAVE GaAs POWER FET DEVICE AND CIRCUIT TECHNOLOGIES Hua Quen Tserng ABSTRACT The latest advances in microwave GaAs power FET device and circuit technologies are discussed. Optimum device structures and design parameters for operating frequencies up to K-band are covered. Broadband matching networks for hybrid power GaAs FET amplifiers are described. These matching networks

20/30 MENTS GHZ COMMUNICATION IN THE NEAR TERM, SYSTEMS: MICROWAVE HARDWARE REQUIRE- AND PRESENT ACHIEVEMENTS. Giorgio PE RROTT A ~: ABSTRACT This paper reviews some of the planned 20/30 GHz Satellite Communication Systems. Recent achievements are presented and correlated to System Designer's requirements, highlighting critical areas needing effort for near term applications. Some specu

GaAS DIGITAL ICs FOR HIGH-SPEED SIGNAL PROCESSING Gerard NUZILLAT Abstract: ing, the This paper reviews the basic concepts of digital signal processprincipal functions needed by special-purpose hardware implementation, and the main features and present status of high-speed digital GaAs ICs technology, with some illustrations of potential applications in future radar and telecommunication sys

HIGH SPEED LOW POWER CIRCUITS WITH JOSEPHSON JUNCTIONS Wilhelm Jutzi Abstract: After a phenomenologic description of the Josephson effect, performance data of oscillators, detectors, mixers and parametric amplifiers as well as of integrated memory and logic circuits with Josephson junctions are presented. 



TECHNIQUES FOR OPTICAL FIBRE TRANSMISSION J.H.C. van Heuven ABSTRACT A review is presented of the most significant characteristics of devices for optical fibre transmission. Some fundamental limitations in optical transmission are mentioned and the performance of digital and analog systems is discussed.