A METHOD METERS FOR MEASURING THE COMPLEX MAGNETIC AND DIELECTRIC MATERIAL PARA- OF MICROWAVE FERRITS and I. Wolff * A. Beyer, W. Muller-Gronau ABSTRACT The described method allows the simultaneous determination of the permittivity and the elements of the permeability tensor employing a single, easily produced ferrite sample, which is situated in a cylindrical cavity. It is shown how th

ACCURATE NOISE TEMPERATURE MEASUREMENTS ON MISMATCHED SEMICONDUCTOR DEVI CES MANFRED SPAUDE AND BURKHARD SCHIEK ABSTRACT A measurement system has been developed, which allows the direct determination of the noise temperature of a mismatched one-port network without the use of passive nonreciprocal components. Furthermore this radiometer has been extended to measure "cold" noise temperatures wi

MEASUREMENT OF THE SURFACE RESISTANCE IN THE MM-WAVE REGION Gunter Fuchs ABSTRACT A test set for measurements of the surface resistance in the 8 mm wave region is described. Using a cavity resonator with transmission coupling the Q-factor TE013 measurement is replaced by the measurement of the transmission coefficient in the case of resonance. To lock the oscillator frequency to the resonant fr

ANTENNA FAR FIELD RECONSTRUCTION BY A MINIMUM NEAR FIELD MEASUREMENTS G. D'Elia **,G. Leone, * R. Pierri *,G. Schirinzi *. Abstract. proved required Moreover a pseudo structed ment effective for The the field sampling approach to a minimum series, for radiated the number represents in a prescribed fields has been range. both in reducing sampling near of information angular

CONCEPT AND EXPERIMENTAL VERIFICATION OF A NEW ELECTRONIC TACAN-ANTENNA G. Greving, R. Zeitz ABSTRACT The existing mechanically rotating radio navigational TACAN-antennaswill be replaced by electronic ones. The historical technical background and some related antenna basics are treated. Applying the extended phase mode theory for circular arrays a new concept is presented which uses sequential

SOME MILLIMETER-WAVE SLOTTERD ARRAY ANTENNAS Klaus Solbach * ABSTRACT The design and performance slotted waveguide arrays is of 39- and presented 65 GHz one- and two dimensional 

THE SINGLE RIDGE WAVEGUIDE CAVITY BACKED SLOT ANTENNA JH CLOETE ABSTRACT A highly compact cavity backed slot antenna is described. The antenna consists of a transverse slot in the flat broadwall of a deep single ridge waveguide cavity. Without dielectric loading radiation occurs when the slot length is approximately 0,3 compared to 0,5 or greater for conventional cavity backed slots. By placing

THE OVERLAPPED MICROSTRIP FOR MICs AND MMICs Wojciech Marczewski 1 and Wac£aw Niemyjski 2 -The overlapped microstrip-like lines and their applica tions feasible by means of MIC and MMIC technology have been pre sented.Several 3dB coupler designs and a microstrip representa-tion of the Marchand balun are suggested as good alternatives to the well known devices. The coupler results are used to prove

ANALYTICAL MODEL OF THE SCHOTTKY CONTACT COPLANAR LINE Ch. SEGUINOT, P. KENNIS, P. PRIBETICH, J.F. LEGlER ABSTRACT. The purpose of this paper is to present an original model of the Schottky contact coplanar line. Determination of the propagation characteristics of this structure is obtained with a good accuracy in a determined range of conductivity and of geometrical parameters. The com

FREQUENCY AND TIME DOMAIN ANALYSIS OF INTERCONNECTIONS IN FAST LOGIC INTEGRA TED SILICON CIRCUITS. * J. Chilo, H. Abiri-Jahromi * , C. Monllor* . ABSTRACT By an electromagnetic analysis in the frequency domain, we characterize the microstrip interconnecting lines in integrated silicon circuits. The propagation constant and characteristic impedance are given for several substrate conductivi