SIMPLE AND ACCURATE ALGORITHMS TO INCLUDE LANG!::- AND ASYMMETRIC MICROSTRIP COUPLERS IN CAD-PACKAGES Florian Sellberg * ABSTRACT Given equations for two equal coupled for the more general cases of asymmetric with an even number of conductors. The and finite conductor thickness is included. microstrip lines, simple but accurate formulas are presented coupled lines and Lange-strapped lines, both

ON THE DESIGN OF FINLINE COUPLERS E. IMBERT*, S. TEDJINI*, P. SAGUET*. ABSTRACT. This paper presents how hybrid ring and hybrid couplers in finline technology can easily be designed Accurate analytical expressions for the effective permittivity and impedance are given. These expressions concern unilateral finlines with one or two slots. By the use of these relations. the analysis and the synthesis

DESKTOP COMPUTER MODELS FOR COPLANAR LINES LAID ON SEMICONDUCTOR LAYERS FOR C.A.D. C. SEGUINOT, P. PRIBETICH, P. KENNIS R. DELRUE, Universite CENTRE HYPERFREQUENCES ET SEMICONDUCTEURS des Sciences et Techniques de Lille-Flandres-Artois U.A. CNRS nO 287 - Bat. p4 59655 - VILLENEUVE D'ASCQ CEDEX ABSTRACT For CAD simulation, it is necessary to determine the frequency behaviour of coplanar lin

COMPUTER ORIENTED ANALYTIC FORMULAS FOR THE QUASI-TEM PARAMETERS OF BROADSIDE-COUPLED COPLANAR WAVEGUIDES WITH A GENERAL DIELECTRIC FOR MMICS. S. S. lWIalr. an d 1Dgo Wolff * ABSTRACT: Fast and exact analytic formulas for calcultaing the quasi-static-TEM parameters coplanar waveguide (GBSC-CPW) are presented. of a general broadside-coupled Simplicity , high speed of computation and exactness

PLANE WAVE DIFFRACTION BY A RESISTIVE SLAB RECESSED IN AN IMPEDANCE SURFACE A.H.Serbest * , G.Uzgoren ** and A.Bliylikaksoy *** ABSTRACT The analysis of the radiation from dielectric covered slot arrays is an interesting topic for practical applications. In this paper, the diffraction of a plane wave by a dielectric covered slot in an infinite impedance plane is considered as a canonical

PROPAGATION LINES G. Boeck ABSTRACT PHENOMENA IN MULTILAYERED, FERRITE LOADED SLOT AND FIN By this work the most important propagation phenomena like field displacement, nonreciprocity, backward wave propagation and cut-off behaviour of ferrite loadet slot and finlines are illustrated. For that purpose Field and Poynting-vector charts as well as spatial fieldline diagrams of the fundament

ANALYSIS OF RADIAL-RESONATOR DIODE MOUNTS WITH OFF-CENTRED DIODES M.E. Bialkowski' and R.D.Stewart2 ABSTRACT Waveguide diode mounts that incorporate thick posts or caps to form radial resonators are investigated both experimentally and theoretically. Particular attention is paid to the resonances of the azimuthal radial modes which may be excited by diodes in off-centred positions. 

EXACT IMAGE METHOD FOR FIELD CALCULATION IN THE SUBSTRATE OF THE MICROSTRIP Esko Alanen* ABSTRACT The well-known technique of computing the electromagnetics fields above the substrate of a microstrip antenna is extended for the field calculation in the substrate medium. These fields are needed especially in determing the input impedance of a patch antenna fed through the ground plane. One image

PLANAR MICROWAVE FERRITE STRUCTURES - FINLINES AND RESONATORS B.A. Gribnikov, V.N. Ivanov, A.M.Lerer, G.N. Shelamov* A.G. Schuchinsky, ABSTRACT The accurate electrodynamic theory of finlines and rectangular planar resonators with magnetized ferrite-dielectric substrate is presented. The performances of fundamental and higher order eigen modes in planar microwave ferrite structures compu

THE RIGOROUS ELECTRO-OPTIC AND COMPUT A TIONALL MODULATOR Y EFFICIENT ANALYSIS OF AN Dr. C.J. Railton and Prof. J.P. McGeehan. ABSTRACT Much interest has been shown in the literature concerning the direct modulation of an optical signal by a microwave signal making use of a microstrip-like structure with the addition of a diffused optical waveguide. Due to the particular geometry of t