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The Antennas for Mobile Radio Communications
The Antennas for Mobile Radio Communications A. Krjukov, V. Ovsyanikov Radiophysics Department, Dniepropetrovsk National University, build. 12, Naukovy 9 str., Dniepropetrovsk, Ukraine, 49050, e-mail: root@ap1.net-rff.dsu.dp.ua Abstract The results of new two-frequency two-vibrator radiators researches are presented. It is shown that under certain ratios of operational frequencies there is a cur
Wave Propagation Phenomena for Wireless Incar Communication
WAVE PROPAGATION PHENOMENA FOR WIRELESS INCAR COMMUNICATION Jürgen v. Hagen, Werner Sörgel, Werner Wiesbeck Institut für Höchstfrequenztechnik und Elektronik, Universität Karlsruhe Kaiserstr. 12, 76199 Karlsruhe, Tel +49 721 608 76 76, Fax +49 721 69 18 65 Juergen.vonHagen@etec.uni-karlsruhe.de, Werner.Soergel@etec.uni-karlsruhe.de INTRODUCTION Wireless communication in buildings is a quickly grow
60 GHz Wireless Access System Concept
60 GHz Wireless Access System Concept Veselin Brankovic1, Kenichi Kawasaki2, Kazuji Sasaki3, Keiji Fukuzawa3 Yasuhiro Okada3, Dragan Krupezevic1, Mohamed Ratni1, Hamid Alikhani1 Telecommunication Research & Development Europe (TRDE); SONY International GmbH, Stuttgart, Germany1 Advanced Technology Center, Sony Electronics Inc., San Diego, USA2 RF Systems Lab., Home Network Company, Tokyo, Japan3 E
Design of Millimeterwave Micro-Machined Patch Antennas for WLAN Applications using a Computationally Efficient Method
DESIGN OF MILLIMETERWAVE MICRO-MACHINED PATCH ANTENNAS FOR WLAN APPLICATIONS USING A COMPUTATIONALLY EFFICIENT METHOD Dhanesh G-Kurup, Anders Rydberg and Erik Öjefors Signals and Systems Group, Uppsala University, Box 528, SE-75120, Uppsala, Sweden e-mail: dg@signal.uu.se ABSTRACT This paper presents a computationally efficient method for the design of millimeter wave H-slot coupled silicon mi
Millimetre Wave Transmit / Receive Subsystem for Broadband Mesh Networks
Millimetre Wave Transmit / Receive Subsystem for Broadband Mesh Networks. Author: E. Bayar Radiant Networks PLC The Mansion Little Chesterford Essex CB10 1XL United Kingdom Tel. +44 1799 533600 Fax. +44 1799 533601 e-mail: esen.bayar@radiantnetworks.co.uk Abstract A completely new approach to broadband wireless access has been developed by Radiant Networks Plc. This radical approach relies on rem
Compact Dielectric Resonator Filter for Mobile Communications
COMPACT DIELECTRIC RESONATOR FILTER FOR MOBILE COMMUNICATIONS K. Mamasis+ and D. Mirshekar-Syahkal* + Siemens Tele Industrie S. A., Georgikis Sholis 89 Ave., Thessaloniki, Greece mamassis@otenet.gr * Dept. of Electronic Systems Eng., University of Essex, Colchester, Essex CO4 3SQ, UK daiush@essex.ac.uk ABSTRACT Using very low-loss ceramic resonators with dielectric constant of 100, design of a
A Design of Predistortive High Power Amplifier using Carrier Complex Power Series Analysis
A Design of Predistortive High Power Amplifier using Carrier Complex Power Series Analysis o Sang-Young Yun* , Se-Woong Jeong** , Yong-Chae Jeong** , Chul-Dong Kim* * Sewon Teletech, Anyang-Si, Kyounggi-Do, Korea **Division of Electronics and Information Engineering, Chonbuk Nat'l Univ., Chonju-Si, Korea Email: ycjeong@moak.chonbuk.ac.kr Abstract In this paper, a new carrier complex power seri
Broadband Predistortion Linearisers
BROADBAND PREDISTORTION LINEARISERS P. Kangaslahti, L. Ruokokoski, J. Pohjalainen and P. Jukkala Ylinen Electronics Ltd., Kauniainen, Finland, tel: +358-9-5055211, fax: +358-9-5055547, email:pekka.kangaslahti@ylinen.fi ABSTRACT Digital communications place ever-increasing demands on the linearity of power amplifiers. To meet these challenges, the system engineer needs to either increase the maxim
A Feedforward Power Amplifier with Loops that can Reduce RX Band Noise Signals as well as Intermodulation Signals
A Feedforward Power Amplifier with Loops that can reduce RX Band Noises Signals as well as Intermodulation Signals Si-Gyun Jeong*, Seong-Hoon Jeong*, Jeong-Hyeon Cha*, Yong-Chae Jeong*, Chul-Dong Kim** *Division of Electronic & Information Engineering , Chonbuk Nat'l Univ. , R. O. Korea **Sewon Teletech, Anyang-Si, Kyunggi-Do, Korea E-mail : ycjeong@moak.chonbuk.ac.kr Abstract - In this paper, a n
Low Quiescent Current SiGe HBT Driver Amplifier