SHADOWING OF AN INHOMOGENEOUSPLANE WAVE BY AN EDGE Henry L. Bertoni, Arthur C. Green and Leopold B. Felsen Abstract - When an inhomogeneous plane wave or other type of evanescent field in a lossless medium strikes a large opaque object, the boundary of the shadow zone is displaced from the familiar geometric optical location for non-evanescent fields. This change is attributable to the co

PROPAGATION IN SHIELDED HELICAL LI~~ CONTAINING ~~GNETISED LATCHING FERRITE AZIMUTHALLY K.F. Ivanov+) ABSTRACT The propagation in an infinitely long thin-wire cylindrical helix, surrounded by a latching ferrite tube, magnetised azimuthally to remanence and perfectly conducting metallic shield is studied theoretically. The characteristic equation of the system for circularly symmetrical mode, i

A MULTI OCTAVE EDGE MODE NON RECIPROCAL PHASE SHIFTER L. COURTOIS + - G. FORTERRE - J. MARCOUXx ABSTRACT A non reciprocal phase shifter using an electromagnetic surface wave (OSEL) in a ferrite strip line is presented. The characteristic equation of a strip line using a composite medium (fetrite - dielectric or ferrite - ferrite) is established for the forward and reverse TE modes. Three

APERTURED FERRITE SLAB SUBSIDIARY RESONANCE POWER LIMITERS L.K. Brundle, M.D. Coleman, S.R. Longley* ABSTRACT New geometrical structures of ferrite and dielectric, in standard rectangular waveguide, have been employed as subsidiary resonance power limiters for X-band receiver protection. The structures consist of monolithic ferrite slabs containing circular or rectangular apertures some of whi

THE MODAL SPECTRUM OF FERRITE-LOADED STRIPLINES, II Donald M. Bolle * ABSTRACT: This paper expands upon earlier results obtained for the dispersion characteristics and modal structure of a waveguiding geometry which models the inhomogeneously ferrite load stripline. These results strongly indicate that components presumed to employ the edge-guided peripheral mode to obtain isolation in fact

NEW THEORETICAL WAVE JUNCTION MODELS AND COMPUTER PROGRAMS FOR ACCURATE DESIGN OF MICRO- CIRCULATORS and B. Hansson G. Fil ipsson ABSTRACT This paper presents some of the results zation and design of microwave junction microstrip applications. obtained in a project for optimicirculators for stripline and A new set of expressions for the ferrite permeability parameters has been developed

HIGH POWER STATIC INDUCTION TRANSISTOR FOR MICROWAVE OPERATION Y. Kajiwara, Y. Yukimoto and K. Shirahata A new type of transistor called Static Induction Transistor (SIT) ", by operation of majority carrier injection, " has been successfully microwave a process obtained; watts MHz. high power technique, (1) f verified operation. as a promising By using remarkable device results for a

DYNAMIC TWO-DIMENSIONAL COMPUTER SIMULATION OF THREE-TERMINAL SEMICONDUCTOR DEVICES S. P. Yu + and W. Tantraporn + Abstract Special schemes for treating device geometry permit the use of the very fast Hockney technique for solving the two dimensional Poisson equation so that dynamics of three-terminal semiconductor devices can be computer simulated economically. Successful simulations of bi

SMALL-SIGNAL PROPERTIES OF CONTROLLED AVALANCHE MICROWAVE SILICON TRANSIS- TORS . Y. CROSNIER, M. LEFEBVRE, H. GERARD and G. SALMER ~ ABSTRACT: This paper presents a study of the behaviour and capabilities of avalanching microwave transistor amplifiers through measurements carried out on transistors in small signal conditions and with common-base configuration operation. Interesting result

A NEW NOISE SUREMENT GENERATOR: FOR MICROWAVE COMMUNICATION SYSTEMS ERROR RATE MEA- Ph. DUPUIS+- M. FACHE - M. ROBINx ABSTRACT For many digital communication function of the noise level is developed for the 1.2 - 1.7 GHz circular waveguide transmission to any microwave communication systems, the measure of the error rate as a fundamental. A new noise generator has been range. Originally