HIGH FREQUENCY PART OF A REAL TIME TEST MOBILE STATION FOR UMTS SYSTEM EVALUATIONS . Karl Lehtinen, Mikko Pesola, Karl Koskela Nokia Mobile Phones, R&D, P.O.Box 86, FIN-24101 Salo~Finland ABSTRACT The work presented in this paper is a part of the pan-European RACE II/ATDMA project which aims to study the features planned' to be implemented in the next generation mobile telecommunication systems

Development of an Integrated RF Front End By Morten Hultin and HAvard Stavrand. Normarc AS ABSTRACT . .,. An Integrated RF Front End in Ku band designed for low cost and 'mass production is described. The main design goals were: small size, to be within the satellite operators specifications and to have potential for mass production at low cost. In order to have a compact unit, a small Ortho Mod

High power efficiency AIGaAs.GaAs HBT for mobile communications C.Pinatel, S.Vuye, A.Konczykowska, H.Wang FRANCE-TELECOM Centre National d'Etudes des Telecommunications Laboratoire de BAGNEUX 196, Avenue Henri Ravera - BP 107 92225 Bagneux cedex FRANCE ABSTRACT Different HBTs operating classes have been compared using a simulated multiharmonic load-pull type optimization taking into account the s

PHASB'COMPBNSATED QPSK DEMODULATOR WITH A C-BAND I.F. FOR VSAT SYSTEK APPLICATIONS. B.D. Brewster Geelen 1, I.D. Robertson 2. ABSTRACT A microstrip hybrid based QPSK demodulator operating with a 4GHz I.F., for simplified VSAT receive terminals, is presented. The design features independent inphase and quadrature RF arm phase trimming. Implementation is based onvaractor tuned phase shifters and si

TITLE Low-Profile Mobile DBS Receiving System using a Single-Layer Slotted Leaky Waveguide Array AUTHORS Jiro Hirokawa*, Makoto Ando*, Naohisa Goto* and Masahiro Uematsu** AFFILIATIONS * Department of Electrical and Electronic Engineering, Faculty. of Engineering, Tokyo Institute of Technology ** Broadcasting Satellite Systems, Information Devices Development Division, Electronics and Information

GEOMETRY REARRANGEMENT TECHNIQUE - A NEW METHOD TO MINIMIZE REFLECTION FROM ABSORBING BOUNDARIES IN THE FDTD ANALYSIS OF PLANAR TRANSMISSION LINE COMPONENTS Krishna Naishadham and Xing Ping Lin Department of Electrical Engineering Wright State University Dayton,OH 45435, USA Tel. (513) 873-5057 Fax: (513) 873-5009 Email: knaish-matrix.wright.edu ABSTRACT Residual reflection from absorbing boundari

~h~ Simple Rigorous and Effective Treatment of Thin . Wires 'and Slots in the FDTD Method c. J. Railton Centre for Communications Research, Faculty of Engineering University of Bristol, Bristol BS8 1TR ABSTRACT The necessity of using analytical additions to the basic Yee algorithm when treating wires and slow whose dimensions are much smaller than a unit cell size in the FDTD method has been lo

A NOVEL FINITE-DIFFERENCE TIME-DoMAIN ALGORITHM INCORPORATING COEFFICIENTS FOR CURVED BOUNDARIES. CORRECTION ,; I.J. Craddock and 9,J lJailton Centre for Communication~ Research, Fa<;ulty of Engineering, University of Bristol, Bristol. BS8 1TR. England.. Tel: 0272 303727 fax: 0272 255265 \. Abstract This contribution, describes research undertaken into a new finite-difference implementation o

HIGHER-ORDER MODELLING OF MEDIA INTERFACES FOR ENHANCEDFDTD ANALYSIS OF MICROWAVECIRCUITS M.Celuch - Marcysiak, Wojciech K. Gwarek Institute of Radioelectronics, Warsaw University of Technology, Nowowiejska 15/19, 00-665 Warsaw, Poland. tel.: (22)2~3929, fax: (22)255248, e-mail: gwarek-ire.pw.edu.pl ABSTRACT The 1st and 2nd order accurate models of media interfaces are originally developed and i

A general methodology of modelling 3D discontinuities using the TLM method Chokri BOUSSETI A, Fabien NDAGIJlMANA, Jean CHILO and Pierre SAGUET LEMO-INPG CNRS URA 833 BP.257 38016 GRENOBLE Cedex France Tel.: (33) 76.85.60.13, Fax: (33) 76.85.60.80 ABSTRACT In this paper, we present a methodology for analysing interconnections in high speed logic devices using a full wave 3D technique. The 3D TLM me