A NEW LOW NOISE FRONT END FOR MILLIMETER WAVE TRANSPONDERS . A. D'Ambros~o ~ ABSTRACT Theoretical converters ders The results are also premises and specific and their respect design possible to other considerations solutions. between 14 and 11 GHz , of parametric wave down are analyzed with use on millimeter transpon is considered given of a laboratory and discussed. prototype, operatin

A PROTOTYPE OSCILLATOR CIRCUIT UTILIZING EVANESCENT MODE RESONATORS by R. Knochel and K. SchUnemann ABSTRACT: A prototype oscillator circuit is described which uses evanescent mode resonators as housing for active devices. The circuit is applied to voltage controlled oscillators, injection locked oscillators as FM-amplifiers and frequency dividers, and cavity stabilized oscillators. Desig

BIOLOGICAL EFFECTS BY MICROWAVES Andre-Jean BERTEAUD and Michele DARDALHON ABSTRACT Domestic and industrial applications of microwaves are everyday extended implying protection conditions and safety standards which require a better knowledge of biological effects associated with microwave radiations. Interactions of microwaves with living systems are reviewed on the basis of levels of organi

STATUS AND TRENDS IN MICROWAVE ACOUSTIC DEVICE DEVELOPMENTS Kjell A. Ingebrigtsen* ABSTRACT The implementation of the surface acoustic wave technology has transferred microwave acoustic devices from "one of each kind" to a mass production oriented technology. This has provided a new class of devices which are cost competitive with alternative technology in a variety of applications. The prese

Characterisation of a non-1inear Satellite Transistor in a Single-Channel-Per-Carrier Link W.Kriedte, A.Woode *) ABSTPl\CI' Amplifier The paper describes the testset and the test methods to assess performance of a satellite power amplifier designed for multicarrier .operation. The following specific characteristics are measured: the -1. -2. -3. -4. Single carrier characteristic carrier to Int

GENERATION FROM Harry AND USE OF COMPOSITE SUBNANOSECOND WAVEFORMS FOR MEASUREMENTS 0.4 TO l8 GHZ M. Cronson ABSTRACT A new generator is described which supplies a single subnanosecond waveform for measurements over the entire 0.4 to l8 GHz range. The very large instantaneous bandwidth is obtained from a composite waveform made up of quasi-impulse and RF burst. A 20 dB attenuation measuremen



CRYOGENIC CHARACTERISTICS OF MILLIMETRE WAVELENGTH SCHOTTKY BARRIER DIODES D.R. Vizard ABSTRACT High quality millimetre various doping levels were The temperature dependence theory. Factors relevant a cryogenic mixer utilizing wave measurements of mixer compared with the theoretical wavelength GaAs Schottky barrier diodes of measured over the temperature range 12°-300 K. of various diode parame

DIELECTRIC LOSS MEASUREMENTS MICROWAVE BELOW 15 KELVIN BY USING SUPERCONDUCTING RESONATORS by W. Meyer ABSTRACT: The paper deals with the theoretical and practical investigation of superconducting Nb3Sn-helical-resonators with quality factors greater than 10^8 which allow the determination of dielectric loss tangents in the range of 0.1 to 10GHz and below 15KHz with an absolute accuracy