A DIELECI'RIC ROD WAVEGUIDE FOR HYPERTHERMIA APPLICATION Ryoji Tanakal, Yoshio Nikawa2, Fumiaki Okada2, and Shinsaku Moril ABSTRACT In this paper, an applicator of dielectric rod waveguide for the microwave heating is described. The applicator consists of acrylic cylinder filled with deionized water as dielectric. By circulating the deionized water, the dielectric rod applicator acts as the surfa

MICROWAVE INTERSTITIAL HYPERTHERMIA SYSTEM MONITORED BY MICROWAVE RADIOMElRY (HIMCAR) AND DOSIMETRY BY HEATING PATIERN REMOTE SENSING J.J. FABRE(1), J.C. CAMART(l), L. DUBOIS(l), M. CHIVE(1,2), J.P. SOZANSKI(2), B.PREVOST(3) ABSTRACT A complete microwave iotersitial hyperthermia system with temperature control by microwave radiometry is described. The designed antennas and all their characterist

DETERMINATION OF THE SUPERCONDUCTOR PENETRATION DEPTH FROM MICROWAVE SCREENING MEASUREMENTS ON TIlIN FllMS V. Miihlhaus* and B. Schiek* ABSTRACT Experiments on the screening attenuationof YBa2Cu3O7-d thin films on different substrates have been performed in the frequency range 28-33 GHz. From these measurements, the superconductor penetration depth can be deduced, which indicates the quality of a

2 - 40GHZ DISPERSION MEASUREMENTSON COPLANAR WAVEGUIDE LINES ON ALUMINA A K Rayit* , N J MCEwan* ABSTRACT Dispersion measurements on Coplanar Waveguide(CPW) lines, using Alumina as the substrate material, are described, covering the frequency range 2-40GHz. CPW effective dielectric constants were calculated from the resonant frequencies of both ring resonators and straight resonators using a t

ACCURATE METHOD OF MEASURING THE TEMPERATURE OF DIELECTRIC RESONATOR MATERIALS Adam Abramowicz. * ABSTRACT JOzef Modelski COEFFICIENTS + This paper presents a method of measuring the temperature coefficient of the material permittivity and the coefficient of thermal expansion of dielectric resonators in a purely electrical way. The radial mode matching method has been succesfully applied to the

MERIT FIGURES OF LOW NOISE HEMTs FROM COMPLETE CHARACTERIZATION G. capponi, B. Di Maio, P. Livreri, G.Martines * ABSTRACT A number of HEMT from different manufacturers have been completely characterized by means of a noise figure automatic test set. A thorough performance evaluation of the HEMT families has been carried out and the results are reported as distributions of compact figures of mer

ON-WAFER LOAD-PULL CHARACTERIZATION GaAs POWER MESFETs OF SELF-ALIGNED J.-E. Muller. ABSTRACT , M. Laudien., H. Muller" A measurement system for on-wafer load-pull characterization of GaAs power MESFETs is described. High accuracy is obtained by using vector error-correction techniques. The usefulness and the limitations of the system are discussed. Ion implanted GaAs power MESFET cells with

.4.Method for the On Wafer Vharacterlsatlon Microwave Oscillators by Bemd Roth. aDd AdaIbert .,..', of SeDlor Member IEEE o. Ah8tnct In recent developments microwave components and subsystems are mostly integrated monolithically, for instance on a GaAs wafer. For easy and reliable description of such circuits on wafer probing techniques must be applied. In the following characterization of inte

A COMPARISON BE1WEEN 1WO MONOLITHIC DEMODULATORS FOR DIGITAL RADIO LINKS C.BAND 64-QAM I. Telliez*, A.M. Couturier*, C. Rumelhard*, P. Champion**, D. Fayol** ABSTRACT A comparison is done between two different realizations of fully monolithic 64 QAM demodulators working over the 5.9GHz . 8.5GHz range. These circuits include amplitude and phase trimming circuits, two single balanced mixers, cou

FULLY IRTBGRA"l'BD 18-20GRZ PIlASRLOCltBD SYS"l'BIIS USIIIG CHIP. 1I1:RB "l'BCIDIOLOGY DRO SIGItAL SOURCR POR DIGI"l'AL RADIO W.Konrath * ABSTRACT A very compact 20GHz band local oscillator for digital radio link systems has been developed. The RF assemblies in the system consist of an 18-20GHz voltage controlled oscillator with dielectric resonator (DR-VCO), a balanced amplifier, a ferrite i