A New Permittivity Model for the Microwave Moisture Measurement of Wet Sand Elisa Fratticcioli, Marco Dionigi, Roberto Sorrentino University of Perugia, DIEI, via G.Duranti 93, 06125 Perugia ITALY Abstract -- A new mixing model for the dielectric constant of wet powdered materials is presented. By an accurate calibration the model allows the computation of the moisture content of wet powdered mate

On Line EM Wave Sand Monitoring Sensor for Oil Industry A.I. Al-Shamma'a1, R. Tanner2, A. Shaw1, J. Lucas1 1 The University of Liverpool, Dept. of Electrical Engineering and Electronics, Brownlow Hill, Liverpool L69 3GJ, UK. Tel: +44 151 794 4516, Fax: +44 151 794 4540. 2 The Industry Technology Facilitator (ITF), Exploration House, Offshore Technology Park, Bridge of Don, Aberdeen AB23 8GX, DDI:

Active MMW Imaging Technique for Contraband Detection Leonid V. Volkov1, Alexander I. Voronko1, Natalie L. Volkova2, Aram R. Karapetyan1 1 Institute for Radioengineering & Electronics of Russian Academy of Sciences, Fryazino, Moscow Region (phone: (096) 564-49-07, e-mail: leon_volkov-mail.ru) 2 M.V. Lomonosov Moscow State University, Moscow, Russia object-scattered radiation which are quite succe

T/RX Channel Design of X-band Shipboard APAA System for Mobile Communications via Satellite Young-Bae Jung1, Soon-Young Eom1, Soon-Ik Jeon1, Chang-Joo Kim1 and Seong-Ook Park2 Electronics and Telecommunications Research Institute(ETRI) 161 Gajeong-dong, Yuseong-gu, Daejeon, 305-350, R.O.KOREA, +82-42-860-1684 2 Information and Communications University(ICU) 119 Munji-dong, Yuseong-gu, Daejeon, 305

Analysis and Performance Comparison of Printed Reflectarrays Simone Germani, Maurizio Bozzi, and Luca Perregrini University of Pavia, Department of Electronics Via Ferrata 1, I-27100 Pavia, Italy e­mail: germani-ele.unipv.it, maurizio.bozzi-unipv.it, luca.perregrini-unipv.it Abstract-- This paper presents a novel technique for the analysis of printed reflectarrays with arbitrarily shaped patches.

Simple Electronically-steered On-board Stacked-type Dual-band Patch Array Antenna for Engineering Test Satellite VIII Applications David DELAUNE 1, Josaphat Tetuko SRI SUMANTYO 2&3, Toshimitsu TANAKA 1, Teruo ONISHI 1, and Koichi ITO 2 Chiba University, Graduate School of Science and Technology, 2 Chiba University, Faculty of Engineering, 3 Chiba University, Center for Frontier Electronics and Pho

Shared Aperture Sparse Array Antenna for Wide Band Applications C.I. Coman, I.E. Lager, L.P. Ligthart Delft University of Technology, International Research Centre for Telecommunications-Transmission and Radar (IRCTR), Mekelweg 4, P.O. Box 5031, 2600 GA, Delft, The Netherlands, Phone: +31 15 2785591 Abstract -- A proposal for the use of array antennas in wide band applications is formulated. An ap

A WIDEBAND PHASED ARRAY ANTENNA FOR SAR APPLICATION Matthias Weiß, Olaf Saalmann and Joachim H.G. Ender Forschungsgesellschaft f¨ r Angewandte Naturwissenschaften (FGAN) e.V. u Neuenahrer Str. 20, D-53343 Wachtberg, Germany Tel: [+49] 228 / 9435-267, Fax: [+49] 228 / 9435-618, E-mail: weiss-fgan.de 1 ABSTRACT A high resolution synthetic aperture radar (SAR) experimental system called phased arr

Reduced spurious signals in an injection-locked oscillator by using combining technique Nipapon Siripon1, Mike Underhill and Ian D Robertson2 1 Chiang Mai University, Electrical Engineering Department, Hauy Kaew Street, 50200 Chiang Mai, Thailand, +66 (0) 53 944135 ext.142 2 University of Surrey, Advanced Technology Institute, School of Electronics and Physic Science, GU2 7XH Guildford, United Ki

An Ultra Low Phase Noise W-Band GaAs-Based PHEMT MMIC CPW VCO Ping-Yu Chen, Zou-Min Tsai, Shey-Shi Lu, and Huei Wang Dept. of Electrical Engineering and Graduate Institute of Communication Engineering National Taiwan University, Taipei, Taiwan, ROC Phone: +886-2-23635251 ext.317 Fax:+886-2-23638247 E-mail: hueiwang-ew.ee.ntu.edu.tw Abstract -- A W-band voltage control oscillator (VCO) using 0.1- m