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

Active Phased Array Antenna with Self-Oscillating Harmonic Mixers Minoru Sanagi, Joji Fujiwara, and Shigeji Nogi Department of Electrical and Electronic Engineering, Okayama University 3­1­1, Tsushima­Naka, Okayama 700­0082, Japan sanagi-elec.okayama-u.ac.jp nogi-elec.okayama-u.ac.jp The active phased array antenna with self-oscillating harmonic mixers has been investigated. The active antenna is

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

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

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 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

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

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

Millimeter wave measurements of some low-loss dielectric plates by a novel cut-off circular waveguide method Takashi Shimizu Yoshio Kobayashi Dept. Electrical and Electronic Systems, Saitama University Shimo-ookubo 255, Saitama 338-8570, Japan Phone: +81-48-858-3477, Fax: +81-48-857-2529 E-mail: yoshio-reso.ees.saitama-u.ac.jp ABSTRACT An easy-to-treatment technique is proposed to measure low-los

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