SYNCHRONIZATION AND NOISE PERFORMANCE OF TWO-FREQUENCY OSCILLATORS K. Schtinemann X and P. Plumeyer xx ABSTRACT: A nonlinear theory of multiple-frequency oscillators of the negative resistance type is developed and applied to two-frequency Gunn- and Impattdiode oscillators. The following results which were confirmed by measurements are obtained: By a high-Q loading of the second circuit a c

DESIGN IMPATT AND CONSTRUCTION OF AN INEXPENSIVE TECHNIQUE. Iperen*) 20 GHz STABILIZED OSCILLATOR IN MICROSTRIP B.B. van ABSTRACT. Possible systems for stabilization of a solid state microwave oscillator using a high Q-resonator, as the reaction and the transmission systems (including the Kurokawa system) are considered from a common theoretical point of view. This is achieved by using the

DESIGN AND APPLICATIONS OF SOLID STATE MICROWAVE AMPLIFIERS John MAGARSHACK ABSTRACT The design procedure will be analysed for a reflection type amplifier and a transistor amplifier from a circuit engineer's point of view. That is to say after an appropriate choice of the active device for the required application, the method of characterization for computer assisted design procedure will b



A NEW METHOD FOR ULTRA FAST SIGNAL PROCESSING AND PULSE GENERATION IN THE GBIT/S RANGE. Rudolf Schwarte ABSTRACT A new sampling line with series gates is suited for both fast signal recording and fast pulse generation up to 10 Gbit/s as found in experimental results. It consists of a delay line with equidistantly inserted switches (in practice Schottky diodes). The spatial lay line when voltage d

PIN-DIODE TRANSIENTS IN HIGH SPEED SWITCHING APPLICATIONS L. Szabo x, K. Schunemann x, F. Sporleder xx ABSTRACT: In guided millimeter-wave communication systems with high bit-rate the PCM is done in a reflection-type phase modulator with pin-diode. In this contribution the influence of the pin-diode switching transients on the modulator behaviour is studied both, experimentally and theoreti

A KU-BAND HYBRID-COUPLED 4-PHASE M.I.C.TECHNOLOGY H. Junghans MODULATOR IN ABSTRACT A hybrid-coupled 4-phase P.I.N. diode modulator can operate at frequencies as high as the upper Ku-band even on 25 mil alumina. Investigated are the theoretical constraints under which hybrid-coupled phase modulators, may be connected in series. It is shown, that large output reflexion coefficients are admissible

WIDEBAND PLANAR TRANSMISSION LINE PIN-DIODE ATTENUATOR/MODULATOR Stig Rehnmark * ABSTRACT A new principle for wideband attenuators is presented: The attenuator con-sists of power dividers, 90-degree phase shifters, and PIN-diodes. The power reflected at the diodes is absorbed by the isolation resistors of one of the power dividers. A new technique for phase shifters is presented: Allpass m

EXPERIM~ITAT. AND THEORETICAL STUDIES OF AVALANCHE TRANSISTORS * J.E. Carroll, ABSTRACT A.M. Winstanley +and P.J. Horsburgh + . A three terminal avalanche device is considered operating in a Trapatt type of circuit. A simplified theory is presented which suggests that good efficiencies over 30% can be obtained with bandwidths in excess of 50% and power gains around 10 dB. Experiments on a low f

PLANE FITTED EQUIANGULAR 4-ARM SPIRAL ANTENNA WITH CONICAL REFLECTOR ISOLATED OR INTO A STRUCTURE. . G. GREKOU, G. DUBOST, A. MADANI. ABSTRACT. We present an experimental study of the radiation characteristics of a plane equiangular 4-arm spiral antenna with a conical reflector, isolated in the first case. The centre of the spiral is confused with the apex of the cone (with varying a