APPLICATION OF THE MODIFIED WIENER-HOPF STRUCTURES 1ft t: I and Elhilaly M. Eid TECHNIQUE TO OPEN MICROSTRIP Esaam. El.diwany ABSTRAC,]~ The modified Wiener-Hopf technique is applied to the solution of the problem of the guided modes along an open microstrip.The same. technique is also used for the problem of exciting the open microstrip by a slit delta function series voltage generator. The

FERROMAGNETIC FILM CONVOLVER WAVES BASED ON RESONANCE CONFLUENCE OF BACKWARD SPIN N.G.Kovshikov, P.A.Kolodin and M.P.Kostylev ABSTRACT The results of theoretical and experimental investigations of three magnon confluence of two backward volume waves in a surface one in a tangentially magnetized ferromagnetic film are presented. These investigations have shown that this process is very

ON THE DEFINITION OF QUASI LUMPED ELEMENTS IN PLANAR MICROWAVE CIRCUITS Andreas Janhsen~ Burkhard Schiek and Volkert Hansen1 1. Abstract Planar microwave circuits generally contain resistors, capacitors, diodes etc.. These elements are interpreted as lumped elements in common simulation tools in spite of their finite geometric dimensions. Establishing a spectral domain analysis, by which lumped e

A VERY LOW POWER DISSIPATION FRONT-END MMIC FOR L-BAND RECEIVERS Masami Tokumitsu*, Masahiro Muraguchi** Abstract A new MMIC front-end circuit configuration is proposed for very low power dissipation. The L band front-end MMIC with this configuration consumes only 11.5 mW power consumption. To minimize current dissipation, low noise amplifier and intermediate frequency (IF) amplifier bias lines

A 30 GHz, HEMT, ACTIVE ANTENNA STRUCTURE IN MMIC TECHNOLOGY L. Roy", M. G. Stubbs", J. S. Wight"" ABSTRACT A novel MMIC active antenna structure has been demonstrated by closely integrating a HEMT device and a slot antenna on opposite sides of a GaAs substrate. To our knowledge, this is the first time that such components have been integrated on the same MMIC. It is also the first time that circui

DIGITALLY CONTROLLED GaAs MMIC ATTENUATOR ACTIVE PHASE ARRAYS J.C. Clifton], J. Arnold2 ABSTRACT FOR Multi element arrays with active transmit-receive modules have resulted in the ability to reconfigure beam patterns and steer beams through the use of multibit phase shifters and amplitude control The advantages of the GaAs MMIC in size, mass and reproducibility, together with negligible power co

DIGIT ALL Y CONTROLLED, APPLICA TIONS L M Devlin t 6 BIT, MMIC PHASE SHIFTER FOR SAR ABSTRACT A 6-bit, digitally controlled phase shifter is described. Details of the design, manufacture and measured results are presented. The single chip Monolithic Microwave Integrated Circuit (MMIC) covers the 4.9 - 5.70Hz band with an rms phase error of 5.5°. If instead of assuming ideal binary weighted

HIGH PERFORMANCE MMIC ANALOGUE OCTAVE BANDWIDTH PHASE SHIFTER S Lucyszyn, I D Robertson ABSTRACT * The Cascaded-Match Reflection-Type Phase Shifter (CMRTPS) was recently introduced to significantly widen the bandwidth of traditionally narrow band high performance analogue phase shifters. For the first time, a monolithic CMRTPS is realised. A 6.5-13.0GHz phase shifter, with dimensions of 3.0

PERTURBATION RESONATOR THEORY FOR A BIISOTROPIC SAMPLE IN A CAVITY WITH APPLICATIONS TO MEASUREMENT TECHNIQUES Sergei A. Tretyakovl and Ari J. Viitanen2 ABSTRACT Resonator measurement techniques for exploring electromagnetic parameters of of biisotropic (non-reciprocal chiral) materials are discussed. The biisotropic materials are the most general linear isotropic materials and the correspondi

OPTIMIZATION OF HIGH TC SUPERCONDUCTING MICROWAVE PLANAR STRUCTURES Samir M. El-Ghazaly* and Stephen Strazdust ABSTRACT: This paper compares the characteristics of superconducting microstrip lines to those of inverted microstrip line with the aim of obtaining the optimal structure that suits certain applications. Characteristics of two high Tc superconducting planar structures on LaA103 a