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Front-End Processing with Lens Antenna Arrays for Direction-of-Arrival Estimation
Front-End Processing with Lens Antenna Arrays for Direction-of-Arrival Estimation Tuan Do-Hong£, Joseph A. Hagerty ££, Zoya Popovic ££ , Peter Russer£ £ Munich University of Technology. Arcisstrasse 21, D-80333 Munich, Germany. E-mail: do-hong@ei.tum.de ££ University of Colorado, USA. E-mail: Zoya.Popovic@colorado.edu ABSTRACT Spectral estimation and direction-of-arrival (DOA) estimation is cons
Retro-directive Antenna Array with Phase Conjugation Circuit Using Subharmonically Injection-locked Self-oscillating Mixers
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Active antenna Receivers with Calibration Circuit for Digital Beamforming at 8.45GHz
Active antenna Receivers with Calibration Circuit for Digital Beamforming at 8.45GHz Kohei Mori, Takashi Mizoroki and Hiroyuki Arai Electrical and Computer Engineering, Yokohama National University E-mail: koheimori@ieee.org 79-5 Tokiwadai, Hodogaya, Yokohama, Kanagawa, 240-8501 Japan Tel: +81-45-339-4270, Fax: +81-45-338-1157 Abstract -- Active antenna receiver for digital beamforming (DBF) array
Horn Antenna Beam Scanning using Electronically Tunable Aperture Loading
Horn Antenna Beam Scanning using Electronically Tunable Aperture Loading B. Subbarao, V.F. Fusco High Frequency Electronics Laboratories School of Electrical and Electronic Engineering Queens University Belfast BT9 5AH N. Ireland Ph: 44 2890274087 Fax: 44 2890667023 Email: v.fusco@ee.qub.ac.uk Abstract In this paper we demonstrate antenna beam steering from a single X-band horn antenna whose aper
Single-Chip 19 and 24-GHz VCO and Frequency Divider Fabricated in a Commercial SiGe Bipolar Technology
Single-Chip 19 and 24-GHz VCO and Frequency Divider Fabricated in a Commercial SiGe Bipolar Technology K. Ettinger 1 , A. Stelzer 1 , J. H¨ ftberger 1 , C. G. Diskus 2 , J. Fenk 3 , R. Weigel 1 o 1 Institute for Communications and Information Engineering, University of Linz, Austria 2 Institute for Microelectronics, University of Linz, Austria 3 Infineon Technologies, Munich, Germany Abstract--
MICROWAVE ACTIVE FILTER USING FINITE GAIN AMPLIFIER
MICROWAVE ACTIVE FILTER USING FINITE GAIN AMPLIFIER H. DIAB, F. TEMCAMANI, and J.L. GAUTIER ENSEA, 6, avenue du Ponceau, 95014 Cergy-Pontoise Cedex diab@ensea.fr, temcamani@ensea.fr, gautier@ensea.fr Tlf: (0033). 1.30.73.62.70, Fax: (0033). 1.30.73.66.27 This paper deals with the design of microwave analog biquadratic filters using voltage amplifiers. A prototype bandpass filter is monolithically
Monolithic Ka-band VCO with wide tuning range
Monolithic Ka-band VCO with wide tuning range Seonghan Ryu, Huijung Kim, Joonyoul Lim, Jounghyun Yim, Woosung Kwon, and Bumman Kim Kyounghoon Im* , Youngwoong Kim* , Seogtae Han** Department of Electronic and Electrical Engineering and Microwave Application Research Center Pohang University of Science and Technology, Pohang, Korea * Future Communications IC, Sungnam, Korea ** Taeduk Radio Observat
Active Impedance Profile Technique for Size Reduction, Loss Compensation and Selectivity Improvement of Planar Passive Filters
Active Impedance Profile Technique for Size Reduction, Loss Compensation and Selectivity Improvement of Planar Passive Filters F. Biron, D. Denis, J.Ph. Plaze, L. Billonnet, B. Jarry, G. Tanné*, E. Rius* I.R.C.O.M.- UMR CNRS n°6615 87060 LIMOGES Cedex, France gary@ircom.unilim.fr *L.E.S.T.- UMR CNRS n°6165 BP 809, 29285 BREST Cedex, France Gerard.Tanne@univ-brest.fr A novel general design
A 2-18GHz ESM Receiver Front-End
A 2-18GHz ESM Receiver Front-End L.M.Devlin*, G.A.Pearson*, A.W.Dearn*, P.D.L.Beasley, G.D.Morgan * Plextek Ltd, London Road, Great Chesterford, Essex, CB10 1NY, UK, lmd@plextek.co.uk QinetiQ, St. Andrews Road, Great Malvern, Worcs, WR14 3PS, UK This paper describes the design and evaluation of a dual channel 2-18GHz front-end module for Electronic Support Measures (ESM) applications. The module
Reflection ellipsometry for in-situ measurements of complex permittivity and thickness of a single-layer material at microwave frequencies : theory and experiments
Reflection ellipsometry for in-situ measurements of complex permittivity and thickness of a single-layer material at microwave frequencies : theory and experiments F. Sagnard, D. Seetharamdoo, C. Vignat Laboratoire Systèmes de Communication, Université de Marne-La-Vallée, 5, Bd Descartes, Champs-sur-Marne, 77454 Marne-La-Vallée Cedex 02, France email : sagnard@univ- mlv.fr For in-situ measurement