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W-CDMA Uplink Capacity and Interference Statistics of a Long Groove-Shaped Road Microcells Using A Hybrid Propagation Model.
W-CDMA Uplink Capacity and Interference Statistics of a Long Groove-Shaped Road Microcells Using A Hybrid Propagation Model. Bazil Taha Ahmed, Miguel Calvo Ramón and Leandro de Haro Ariet Departamento Sistemas, Señales y Radiocomunicaciones, ETSI Telecomunicación, Universidad Politécnica de Madrid Ciudad Universitaria, Madrid, 28040, Spain. bazil@gr.ssr.upm.es Abstract The uplink capacity and the
Smart Antennas and their impact on the capacity in UMTS
argent_fa@tin.it giovanni.donofrio@siemens.com In the next years with the introduction of the 3rd generation mobile networks new problems will arise to evaluate the capacity of the system. Unlike GSM where the capacity is easily determined a priori by the number of time slots, in UMTS it is interference based and then dependent on the current situation of the system. In this paper several strategi
Performance Optimization of DSP Driven and Dynamically Biased Power Amplifiers for 3G Handset Applications
Performance Optimization of DSP Driven and Dynamically Biased Power Amplifiers for 3G Handset Applications Sylvain Reed1, Yide Wang2, Serge Toutain2, Hervé Cam1, Francis Huin1 and Fadhel M. Ghannouchi3. ACCO, 21 bis rue d'Hennemont 78100 Saint Germain en Laye France, phone : 33 1 39 10 12 06 IRCCyN/SETRA UMR CNRS 6597 Ecole Polytechnique de l'Université de Nantes BP 50609 44306 Nantes France 3
Microwave Circuits Based on Negative Refractive Index Material Structures
Microwave Circuits Based on Negative Refractive Index Material Structures Christophe Caloz, Atsushi Sanada, and Tatsuo Itoh University of California, Los Angeles, Department of Electrical Engineering, 405 Hilgard Avenue, CA 90095, Los Angeles, USA, 310-206-1710, caloz@ee.ucla.edu Abstract -- The paper presents the fundamentals of composite right/left-handed (CRLH) transmission lines and materials,
Spaceborne Synthetic Aperture Radar (SAR) Systems: State of the Art and Future Developments
Spaceborne Synthetic Aperture Radar (SAR) Systems: State of the Art and Future Developments Alberto Moreira and Gerhard Krieger German Aerospace Center (DLR) Microwaves and Radar Institute, D-82230 Wessling, Germany Email: alberto.moreira@dlr.de ABSTRACT -- This paper first summarizes the state of the art in spaceborne SAR systems and applications. The second part of this paper gives an overview o
Experimental Results of Testing Interferences in 2.4 GHz ISM Band
Experimental Results of Testing Interferences in 2.4 GHz ISM Band Tomasz Keller, Józef Modelski1 1 Warsaw University of Technology, Institute of Radioelectronics, Nowowiejska 15/19, 00-665 Warsaw, Poland, Phone: (+4822)6605016, e-mail: T.Keller@ire.pw.edu.pl, J.Modelski@ire.pw.edu.pl Abstract -- In the paper some experimental results of interference measurements between Bluetooth and IEEE 802.11
Electromagnetic Modeling of Aircraft Air Inlet Scoop
Electromagnetic Modeling of Aircraft Air Inlet Scoop Simon Rea1, David Linton1, Eddie Orr2, Jonathan McConnell2 1 School of Electrical and Electronic Engineering, Queens University, Ashby Institute, 125 Stranmillis Road, Belfast, UK, Tel: +44 (0)28 9027 4089 2 Bombardier Aerospace, Shorts, Airport Road, Belfast, UK, Tel: +44 (0)28 9046 2624 In order to provide a good understanding of the NACA Sco
On the Validation of Simulated Fields in a Reverberation Chamber
On the Validation of Simulated Fields in a Reverberation Chamber Pascal Leuchtmann, Christian Bruns, R¨ diger Vahldieck u ETH Z¨ rich, Laboratory for Electromagnetic Fields and Microwave Electronics (IFH), CH-8092 Z¨ rich, Switzerland u u leuchtmann@ifh.ee.ethz.ch, bruns@ifh.ee.ethz.ch, vahldieck@ifh.ee.ethz.ch Abstract-- The field inside a well working reverberation chamber is commonly considered
Mode Stirring Chambers for full size Aircraft tests: Concept- and Design-studies
Mode Stirring Chambers for full size Aircraft tests: Concept- and Design-studies Markus Rothenhäusler1, Jan Ritter2 EADS-Germany GmbH, Military Aircraft, EMC and Antennas, Rechlinerstrasse, 85077 Manching, Germany, Phone +49 (0) 8459 81 64547 2 EADS-Germany GmbH, Military Aircraft, Signature Technology, Hünefeldstrasse 1-5, 28199 Bremen, Germany Phone +49 (0) 421 538 4406 Abstract -- Mode Stirring
A novel Digital Quasi-Peak Detector for Time-Domain Measurements
A novel Digital Quasi-Peak Detector for Time-Domain Measurements Florian Krug, Stephan Braun, Yuta Kishida, Peter Russer Technische Universit¨ t M¨ nchen, Institute for High-Frequency Engineering a u Arcisstrasse 21, 80333 Munich, Germany, +49 89 289 23375, fkrug@ieee.org Abstract-- In this paper, an advanced ultra-fast, broadband time domain EMI measurement system is described. Measurements were