MICROWAVE NEURAL NET-ANTENNA ARRAY FOR ELECTRONIC WARFARE SYSTEMS A. D. Macedo Filho*, ABSTRACT L. A. L. S. Cardoso* Microwave Neural Networks are introduced. These are microwave subsystems, designed on basis of the emerging Artificial Neural Network Theory, that together with inhomogeneous antenna arrays, are able to perform identification tasks of radar emitters, in real time. A model is presen

A NEW DESIGN OF A BROADBAND MICROWAVE TEST FIXTURE FOR ODD MODE EXOTATION IN MONOLITHIC COPLANAR COUPLED STRIPS M.MABROUK* & S.TEDJINI*. ABSTRACT In this paper, we present the design and performances of a precision microwave test fixture suitable for odd mode excitation in both monolithic and coplanar coupled strips (CPS). The proposed test fixture is based on a new type of a broadband coaxial-to

ON WAFER AUTOMATIC THREE PORTS MEASUREMENT SYSTEM FOR MMIC CIRCUITS AND DUAL GATE FETs N. BOULANGER, C. RUMELHARD, B. CARNEZ, L. BOULANGER, C. SENTUBERY ABSTRACf Recent advances in monolithic design point out the need for accurate and repeatible "S" parameters measurements of three ports RF circuits such as dual gate FETs. This paper presents an automatic on wafer three ports system for frequencie

TRL CALIBRATION APPLIED TO THE MEASUREMENT S-PARAMETERS UP TO 40 GHz L. Pradell, ABSTRACT C. Sabater, E. Artal, A. Comer6n, OF CHIP TRANSISTOR J. Bani, I. Corbella, J. Fortuny. (*) The design of a Microstrip Test Fixture for TRL calibration, based on mobile, precisely positioned coax-to-microstrip transitions, is described. Experimental results for the measurement of GaAs FET and HEMT chips

Vector Network-Analyzer for 130 - 150 GHz 1) T. Geist 1), H.-U. Nickel 2), G. Hochschild 2), W. Wiesbeck Abstract A vector network-analyzer is described, which is in use for waveguide component tests over the 130 - 150 GHz frequency range. The set up consists mainly of standard laboratory equipment, only a few components are custom designed for the 2 mm wavelength range. Measurement examples ar

NETWORK ANALYZER CALIBRATION WITHOUT IMPEDANCE STANDARDS A. Jostingmeier*, G. Faby*, M. Jenett*, K. Schtinemann* ABSTRACT This which paper presents shows it three an alternative advantages: It method avoids an for network de-embedding analyzer calibration the device under test, does not need any impedance behind applicable standard, arbitrary to planar and it allows charac

REAL-TIME SIMULATION OF NON-LINEAR USING SWITCHED-CAPACITOR CIRCUITS MICROWAVE NE1WORKS M. I. Sobhy. ABSTRACT and G. E. Hamad t A new powerful technique has been developed for simulating non-linear microwave networks. Switched capacitor (SC) circuits are used to simulate linear and non-linear elements and the method gives a considerable advantage over digital computer simulation. Once the si

INTERMODULATION ANALYSIS OF MICROWAVE WITH MIXERS BY A THE PIECEWISE SPARSE-MATRIX METHOD COUPLED HARMONIC-BALANCE TECHNIQUE Vittorio RIZZOLI (1), Alessandro LIPPARINI (1), Franco MASTRI (2), Andrea NERI (3), Fiorella SGALLARI (4), Valeria FRONTINI (5) ABSTRACT The analysis of intermodulation distorsion in microwave mixers by the Newton-iteration based hannonic-balance technique may lead to

CAD OF SUPERCONDUCTING NONLINEAR CIRCUITS S. Withington and P. R. Kennedy Abstract. The paper summarises preliminary simulator. work After on the contrasting, development from of a general-purpose a CAD perspective, time superconducting nonlinear-circuit and frequency domain descriptions tunnel junctions, it is reported that circuit can be completely decomposed sulting system of coup

NOISE ANALYSIS OF NONLINEAR MICROWAVE s. Heinen*, R. Stahlmannt, N. Haensel*, S. Kosslowski*, N .H.L. Koster* and I. Wo1ff* CIRCUITS J. Kunisch*, ABSTRACT This paper introduces a new noise analysis algorithm, which is perfectly suited for linear and nonlinear applications. The adjoint system method is extended to compute the noise correlation matrix of multiport networks with arbitrary topolog