RIGOROUS THEORY OF RESONANCES IN CIRCULATORS WAVEGUIDE V-JUNCTION . J Krupka ABSRTACT *, W Glogier **, J Modelski *** Rigorous theory of resonances in ferrite loaded waveguide V-junction is presented. This theory corresponds very well with experiments for any Ferrite dimensions. It is demonstrated that circulators can operate either separately on quasi EH or HE modes or as the result 0f

PLANAR TUNABLE MICROWAVE FERRITE RESONATORS B.A.Gribnikov, V.A.Kuznetsov, A.G.SchuchinskY* ~~~!g~~! The electrodynamic theory of single and multielement tunable planar resonant structures with tangentially magnetized ferrite-dielectric substrate in the waveguide coating is presented. The efficient numerical technique was developed and applied to computer aided design of some structure perfor

MICROWAVE SIGNALS PROCESSING AND FORMING USING DYNAMIC MAGNETOSTATIC WAVES DEVICES YU.K.Fetisov ABSTRACT The possibilities of microwave signals processing and forming using magnetostatic waves (MSW) propagating in ferrite films are discussed. The principal characteristics of MSW controlled transmission line were studied experimentally. The methods of serrodyne shift and linear frequency modulation

DIELECTRIC DUAL RING RESONATOR FOR MILLIMETER THROUGH WAVE INTEGRATED CIRCUIT OPTICAL K. Matsumura*, N. Ohki* ABSTRACT Frequency responses of an open type resonator constructed by coupled two dielectric rings which have different diameters (the diameters are relatively large compare to handling wavelength) are investigated theoretically and experimentally. It is found that the resonance freque

L-BAND POWER CAnONS S. Vigneron*, ABSTRACT DIELECTRIC RESONATORS FILTERS FOR SPACE APPLI- B. Theron*, C. Boschet**, V. Madrangeas***, P. Guillon*** In order to minimize the mass and the volume of the equipments of satellites payloads, a high power bandpass filter using square cross dielectric resonators excited on the TM110 mode has been developped and tuned. The resonator has a high unlo

EXACT MODEL OF COUPLED DIELECTRIC RESONATORS Adam Abramowicz . ABSTRACT An exact model of coupled dielectric resonators is presented which allows accurate calculations of coupling coefficient. Contrary to previous models this one includes magnetic as well as electric type of coupling. The model is discussed on the basis of the results computed by the mode matching method. Experimental measurement

THE TUNING RESONATORS A. Laurinavicius OF ~eHE WHISPERING-GALLERY BY THE MAG1lliTIC FIELD t TYPE DIELECTRIC * P .1,'Talakauskas, * R.I\Ial~kevicius-\' ABS'I'HACT A new method of tuning. the whispering-gallery type dielectric resonators is reported in this paper. It is based on the dependence of the permittivity of the semiconductor disc placed in the dielectric disc on the magnetic field;

OR ~HE STUDY OF RESONANCE RESONATORS SPLIT~IRG IN MICROS~RIP RI8G ** S.B. Al-Charchafchi * , C.P. Dawson, 3.Boulkos* E. Vassilikos * , ABSTRACT An equivalent circuit model based on transmission line theory has been analysed to investigate the resonant behaviour of an asymmetrically coupled microstrip ring resonator. Resonance splitting is theoretically predicted and experimental work carried

OR THE RHOMBIC EFFECTS OF RESORATOR DISTURBIRG THE SYMMETRY OF A MICROSTRIP S.B. AI-Charchafchi ., 3. Boulkos . ABSTRACT The introduction of a narrow transverse slit or a notch in one of the arms of a symmetrically coupled microstrip rhombic resonator disturbs its symmetry and results in frequency splitting. The latter occurs at odd and even resonant frequencies of the resonator. Howe

STUDY OF A LOW-PASS THE SPECTRAL DOMAIN A. Casanueva*, ABSTRACT FILTER IN MICROSTRIP LINE APPLYING MODAL ANALYSIS IN J.L. Garcfa*, A. Taz6n* An abrupt change in microstrip linewidth, commonly called a microstrip impedance step, is a discontinuity that appears frequently in MMICs, such as, stepped impedance transformers and matching networks for example. Therefore. the accurate descriptio