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An Active Cuber Circuit for Power Amplifier Analog Predistortion
An Active Cuber Circuit for Power Amplifier Analog Predistortion L. Roselli1 , V. Borgioni2 , V. Palazzari1 , F. Alimenti1 Dept. of Electronic and Information Engineering, University of Perugia. via G. Duranti 93, 06125 Perugia, Italy. Tel: +39-75-585.3633, Fax: +39-75-585.3654, e-mail: roselli@diei.unipg.it 2 WiS S.r.l., via Vici 14, I-06034 Foligno, Italy. Tel: +39-(0)742-320074, Fax: +39-(0)742
RF Self-Identification and Triggering of Fast Moving Objects
RF Self-Identification and Triggering of Fast Moving Objects L. Roselli, F. Alimenti, G. Stopponi, N. Porzi Department of Electronic and Information Engineering - University of Perugia via G. Duranti 93, Perugia, Italy. Tel. +39-075-5853633; Fax +39-075-5853654; e-mail: roselli@diei.unipg.it Abstract This paper deals with a RF self-identification and triggering system suited for the detection of
Beam Steering by Means of Harmonic Injection Locking
Beam Steering by Means of Harmonic Injection Locking Mark R. Kühn, Magnus O. Olbrich, Erwin M. Biebl Technische Universität München, Fachgebiet Höchstfrequenztechnik, Arcisstr. 21, 80333 München, Phone +49 89/289 23930 Abstract - Electrically controlled beam steering requires mutually phase-locked oscillators. In this work, a free running first harmonic oscillator with a 12 GHz fundamental oscill
Application of the fractional synthesizers to SFCW radars
Application of the fractional synthesizers to SFCW radars Manuel Sanchez1, Miguel A. del Casar1, Cesar Briso1, Jose I. Alonso2 1 2 Universidad Politecnica de Madrid, DIAC-EUITT, Spain Universidad Politecnica de Madrid, SSR-ETSIT, Spain Abstract -- An alternative method to generate chirp signals in SFCW-radars based on sigma-delta fractional synthesizers which allow to get high resolutions in a g
Influence of Systematic Frequency-Sweep Non-Linearity on Object Distance Estimation in FMCW/FSCW Radar Systems
Influence of Systematic Frequency-Sweep Non-Linearity on Object Distance Estimation in FMCW/FSCW Radar Systems Markus Pichler1, Andreas Stelzer2, Peter Gulden3, and Martin Vossiek3 Linz Center of Competence in Mechatronics, Altenbergerstr. 69, 4040 Linz, Austria, +43 (70) 2468-9784 2 Johannes Kepler University, Institute for Communications and Information Engineering, Linz, Austria 3 Siemens AG CT
Generation of Precise Frequency Ramps for FSCW Applications with a Fractional-N-PLL at 24 GHz
Generation of Precise Frequency Ramps for FSCW Applications with a Fractional-N-PLL at 24 GHz Andreas Stelzer1, Josef Höftberger2, Klaus Ettinger1,3, and Robert Weigel3,4 Johannes Kepler University, Institute for Communications and Information Engineering Altenberger Str. 69, A-4040 Linz, Austria, E-mail: a.stelzer@ieee.org 2 Linz Center of Competence in Mechatronics, Altenberger Str. 69, A-4040 L
A European Low Cost MMIC based Millimetre-Wave Radar Module for Automotive Applications
A European Low Cost MMIC based Millimetre-Wave Radar Module for Automotive Applications Mark Walden1, Adrian Garrod1 1 Roke Manor Research Ltd, Roke Manor, Old Salisbury Lane, ROMSEY Hampshire, SO51 0ZN, United Kingdom, mark.walden@roke.co.uk, +44 (0)1794 833133 Abstract -- The development of a low cost MMIC based millimetre-wave radar module is presented. The paper concentrates on the design of
Hybrid Planar/NRD-Guide Millimeter-Wave Balanced Sub-Harmonic Mixer
Hybrid Planar/NRD-Guide Millimeter-Wave Balanced Sub-Harmonic Mixer Yves Cassivi and Ke Wu Poly-Grames Research Center, Department of Electrical Engineering, École Polytechnique de Montréal, 3333 Queen Mary, suite R222, Montréal, Quebec, Canada, H3V 1A2 (cassivy@grmes.polymtl.ca, wuke@grmes.polymtl.ca ) Abstract -- A new balanced subharmonic mixer based on our hybrid planar/NRD guide technology i
Millimetre wave VCOs with wide Electronic Tuning Range for Synthesised Radios
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Symmetric and Asymmetric Two-Hemidisk Quasi-Optical Dielectric Resonators
Symmetric and Asymmetric Two-Hemidisk Quasi-Optical Dielectric Resonators Nickolay T. Cherpak, Alexander A. Lavrinovich, and Elena N. Shaforost A.Usikov Institute of Radiophysics and Electronics, National Academy of Sciences 12, Acad. Proskura str., 61085 Kharkiv, Ukraine Abstract -- Quasi-optical dielectric resonators in the form of two hemidisks with a diametric slot between them are proposed. S