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A RAPID PROBABILISTIC POTENTIAL SOLVER AND ITS IMPLICATIONS FOR FAST ELECTROMAGNETIC FIELD SOLUTIONS
A RAPID PROBABILISTIC FAST ELECTROMAGNETIC V F Fusco POTENTIAL SOLVER FIELD SOLUTIONS AND ITS IMPLICATIONS FOR Abstract This paper shows how the Monte Carlo method can be used to solve probabilistic potential problems in a fraction of the time required until now. Previous methods have relied on fast sequential processing using mainframe computers. The method presented here exploits the natura
FINITE ELEMENT ANALYSIS OF MICROVAVE TRANSMISSION-LINES EMPLOYING A SELF ADAPTIVE HBSB TECHNIQUE WITH AN EFFICIENT ELEMENT SUBDIVISION ALGORITHM
FINITE ELEMENT ANALYSIS OF HICROVAVE TRANSMISSION-LINES EMPLOYING A SELl ADAPTIVE HBSB TECHNIQUE VITO AN EFFICIENT ELEMENT SUBDIVISION ALGORITHM Hagdalena Salazar-Palma*, Felix Hernandez-Gil** ABSTRACT A self-adaptive mesh scheme for the Finite Element (FEM) analysis microwave transmission-lines, is presented. It provides an accurate and efficient FEM program, with automatic mesh generation, we
STRONGLY COUPLED DIELECTRIC RIB WAVEGUIDES, USE OF THE "TRANSITION FUNCTION" AND OF EDGE DISCONTINUITIES
STRONGLY FUNCTION" COUPLED DIELECTRIC RIB WAVEGUIDES, AND OF EDGE DISCONTINUITIES USE OF THE "TRANSITION T. Rozzi*#, G. Cerri*, M.N. Husain# and L. Zappelli* ABSTRACT The problem of two or more closely coupled rib waveguides, where energy is leaked from one guide to the other via the substrate and radiation mode, is of great practical and theoretical importance. Rigorous results including
HYBRID MODE DIELECTRIC RESONATORS ON SUSPENDED SUBSTRATE
HYBRID SUBSTRATE Xiao-Peng MODE DIELECTRIC RESONATORS ON SUSPENDED Liang, Hsin-Chin Chang and Kawther A. Zaki* ABSTRACT A rigorous method for analyzing hybrid mode dielectric resonators on suspended substrate and for evaluating the quality factors of the resonators, by using mode matching, is presented. Measured and numerical results showing excellent agreement are presented for a sample
DESIGN OF A PHASED ARRAY ANTENNA USING SOLID STATE TRANSMIT/RECEIVE MODULES
DESIGN (F A PHASFD ARRAY ANrENNo\ USINJ P A Claridg~ P Hazeldine, SCLID S'D\TE "mANSMIT/ROCEIVE MDULES * W G Gates", ' M D R Tench, * W J M Grfham R Young . +, ABSIRACr The trade offs and design decisions to implement an active solid state phased array antenna result in a S-Band radar with 2500 T/R modules per face. Each module incorporates a 6 bit phase shifter, a 6 bit attenuator, 10 wa
Performance Enhancement of TEM Power Dividers
Performance Enhancement of TEM Power Dividers Mr D.K. Grindrod+. Dr R.S. Orton+, Mr G.P. Steele+, and Mr A.J. Scammell* + GEC-Marconi Research Centre * Marconi Radar Systems Limited 1 ABSTRACT This paper presents a technique for improving the amplitude and phase characteristics of TEM power dividers over a frequency band. Use is made of gradient optimisation algorithms which place equal emphas
NOVEL BLADE ANTENNA USING MICROSTRIP PATCH ELEMENTS
NOVEL BLADE ANTENNA USING MICROSTRIP PATCH ELEMENTS H. JAIRAM* ABSTRACT A novel Blade Antenna using microstrip patch elements is described. This antenna is capable of producing a horizontally polarised beam with omnidirectional coverage in the horizontal plane when mounted vertically on an aircraft. A scaled experimental model designed to operate at 2.8GHz with 4% bandwidth capability (VSWR 2
DEVELOPMENT OF A MULTI-SHAPED BEAM ANTENNA IN C-BAND
DEVELOPMENT OF A MULTI-SHAPED BEAM ANTENNA IN C-BAND E. Dudok, N. Nathrath, E. Sommer, H. Wolf * G. Crone ** ABSTRACT This paper describes the development of a 4 GHz transmit antenna generating six shaped beams for covering main areas of Africa. Design and optimisation, hardware activities and performance data are presented. Two polarisation sensitive gridded single offset reflectors (diameter
ELECTRICAL DESIGN AND CHARACTERISTICS OF ETS-VI MULTIBEAM ANTENNA FEEDERS USING Ka/C/S FREQUENCY BANDS
ELECTRICAL DESIGN AND CHARACTERISTICS OF ETS-VI MULTIBEAM ANTENNA FEEDERS USING Ka/C/S FREQUENCY BANDS Akira KONDO* and Hiroyuki KUMAZA W A * ABSTRACT This paper describes the electrical design and measured characteristics of a flight model for ETS-VI (Engineering Test Satellite-VI) multibeam antenna feeder components using Ka/C/S frequency bands. Key technologies are low loss and low cross-pola
A MM WAVE ANTENNA FOR INTERSATELLITE AND INTERORBIT LINKS IMPLEMENTING A NOVEL MECHANICAL SCANNING AND POINTING SYSTEM
A MM WAVE ANTENNA FOR INTERSA TELLITE AND INTERORBIT LINKS IMPLEMENTING A NOVEL MECHANICAL SCANNING AND POINTING SYSTEM G.PERROTT A If ABSTRACT The paper overviews the system and mission requirements of the millimeter wave communication payload antenna for ESA's PSDE SAT-2. The description of a re-pointing and tracking system applying, unconventionally, a mechanical conical scan concept,follow