RESONANT FREQUENCY OF SUPERPOSED DIELECTRIC RESONATORS: APPLICATION TO THE DETERMINATION M. CLAPEAU, OF THE LOCAL P. GUILLON, DIELECTRIC ~ PERMITTIVITY OF M.I.C. SUBSTRATES. Y. GARAULT ABSTRACT Several methods have been described to measure the permittivity of dielectric substrate, and all used the complete area of the sample and so give an average value of this parameter. But in the

THEORETICAL TO PARALLEL AND EXPERIMENTAL AND PARALLEL RESULTS OF A DISTRIBUTED SERIAL RATES TO SERIAL CONVERTER FOR GIGABIT R. Schwarte, B. Brinkmeier, Narzinski, R. Sinning~ ABSTRACT J. Fischer, H. Koppenhofer, K. H. This paper presents experimental and theoretical results of an application of the SSL-principle (Series-gate Sampling Line) to the regeneration of fast digital signals.

CIRCUIT TECHNIQUES FOR GIGABIT/S DIGITAL COMMUNICATION SYSTEMS J.B. Coughl~n . (1) , R.G. Harbott (1) , J.B. Hughes, (1). F.W. S~egert (2) ABSTRACT This paper describes how mono1ithical1y integrated transistor pairs are used as hybrid circuit components to produce Gbit/s performance in digital communications equipment. The transistor technology results in a peak fT of 5GHz and inc

DEMULTIPLEXER USING FAST HYBRID INTEGRATED ECL-GATES FOR 1 GBIT/S PCM SIGNALS Reinhard Petschacher and Peter Russer ABSTRACT This paper describes a demultiplexer combined with a clock regenerator for 1 Gbit/s PCM signals. The demultiplexer divides the incoming signal into four parallel 250 Mbit/s channels using fast hybrid integrated ECL-gates with rise time of less than 400 ps. All clock signals

SUBNANOSECOND OPERATION OF A MICROSTRIP OPTOELECTRONIC SWITCH . R. Castagne, R. Laval, S. Laval, A. Meriau Abstract.Experimental results and a theoretical model concerning optoelectronic switches are reported. These devices mainly consists in a microstrip line, deposited on a high resistivity semiconductor. The upper strip has a break which can be illuminated by a laser pulse. The latter



PRECISION APPROACH MONITORING AND GUIDANCE USING INTERFEROMETER TECHNIQUES A.J. Lambell * and R.P. Vlncent . + ABSTRACT The PAIR (Precision Approach measures the position of aircraft Interferometer Radar) system accurately in the airfield approach sector. A ground-based interrogator transmits a conventional SSR code. Aircraft transponder replies are received by an azimuth and elev

DOPPLER DIRECTION SENSE MODULE John C. W1ll1ams. '* . . ABSTRACT A novel method of incorporating direction sense into a Doppler radar module, integrated with a circulator, is described. It uses the properties of the isolation signal in microstrip circulators and is accomplished without any increase in substrate size or addition of any complicated circuitr~ Although the technique is demonst

A 3 GHz RADAR BEACON ("RACON") USING A MICROWAVE ACOUSTIC DELAY LINE D. ABADIEx - M. DE VECCHIS - J. PUYHAUBERT+ ABSTRACT The design criteria for a S band Radar Beacon responding at the sole frequency of the interrogating radar are given. A microwave acoustic delay line is used to create the response of the beacon and the capability of encoding this response by a proper design of the delay lin

SIMPLE, EFFICIENT, SELF-STARTING TRAPATT OSCILLATORS P.A. Blakey ABSTRACT A simple new TRAPATT oscillator circuit is proposed. Large signal computer simulation is used to establish typical performance characteristics The simulation results enable areas of potential systems applications to be identified.