HARMONICALLY PUMPED STRIPLINE DOWNCONVERTER M. V. Schneider and W. W. Snell, Jr. ABSTRACT A novel thin film downconverter which is pumped at a submultiple of the local oscillator frequency has given a conversion loss which is comparable to the performance of conventional balanced mixers. The converter consists of two stripline filters and two Schottky barrier diodes which are shunt mounted i

A PLASTIC ENCAPSULATED MIC 17 GHz MIXER G.H. Swallow, J.G. Mathews and T.H. Oxley ABSTRACT This paper describes some work on MIC plastic encapsulation using transfer moulding techniques. After the establishment of a suitable coaxial to microstrip transition the studies progressed through the encapsulation of a series of hybrid microstrip circuits for use at J(Ku) band frequencies. The fin

~ TUNABLE MICROWAVE FILTERS USING YIG GROWN BY LIQUID PHASE EPITAXY" I.T. Simpson, I.F. Morton, J.M. Owens, R.D. Pringle+ ABSTRACT Original work is described on the application of refinements in Liquid Phase Epitaxy (LPE) of yttrium iron garnet (YIG) to the fabrication of tunable microwave filters. The advantages in cost and performance of this approach over the conventional YIG s

A LIGHT WEIGHT GRAPHITE FIBER EPOXY FOR SATELLITE COMPOSITE APPLICATION (GFEC) WAVEGUIDE MULTIPLEXER C. M. Kudsia* and ABSTRACT M. V. O'Donovan** This paper describes the synthesis, optimization and realization of a noncontiguous six-channel multiplexer composed of filters fabricated" using GFEC as the basic waveguide material. This material is much lighter than Invar but possesses a sim

PERFORMANCE OF A TWIN-CHANNEL OPTICAL COMMUNICATION SYSTEM B. Daino*, M. Galeotti* and D. Sette" ABSTRACT The results of an investigation on the performance of an optical communication link in the area of Rome are described. Binary pulse polarization modulation at 76 Mbit/sec has been used, with a helium neon laser working at 6328 achieving Å and a propagation path 3.6 km long. The po



THE 14/12 GHz COMMUNICATIONS TECHNOLOGY SATELLITE L.D. M.V. Braun* O'Donovan** TRANSPONDER OF THE COMMUNICATIONS ABSTRACT The Communications Transponder of the Communications Technology Satellite incorporates a number of advanced-technology units designed to provide a reliable, high-power, microwave communications capability at 14/12 GHz for experimental purposes. The advanced-technology units

13 GHZ PCM Per Fremstad LINK. ABSTRACT. An all solid state 13 GHz link for transmission of 32 and 120 channel PCM signals has been developed at NERA AS, Division Bergen. The latest developments in solid state design has been utilized in the design. The transmitter power is generated oscillator followed by a microstrip by a phase broadband locked 2 GHz microstrip multiplier. The receiver local o