Experimental results of power amplifiers linearization using adaptive baseband digital predistortion E. Cottais, Y. Wang, S. Toutain IREENA Polytech'Nantes ­ Rue C. Pauc, BP 50609, 44306 Nantes cedex 3 ­ France Email: emmanuel.cottais-polytech.univ-nantes.fr Filter Fig. 1. Baseband temporal Hammerstein model for the amplifier. I. I NTRODUCTION In modern mobile telecommunications systems, the l

High Coupling Achieved by Unequal and Non-Uniform Characteristic Impedances within Three-Line Couplers Heinz Schmiedel University of Applied Sciences FH Darmstadt, Department of Electrical Engineering/Telecommunications, Haardtring 100, D-64295 Darmstadt, Germany, schmiedel-ieee.org, +49.6151.16.8263 Abstract -- Different from well known conventional designs of parallel-multi-line directional cou

Characterization of near-field patterns of a novel UC-PBG FW-CBCPW by using an electrooptic fieldmapping technique Kyoung-Hwan Oh1, Ho-Jin Song1, SucBei Moon1, Tae-Young Kim1, Gopinath Mudhana1, Dug-Young Kim1, and Jong-In Song1 1 Gwangju Institute of Science and Technology, Department of Information and Communications, 1 Oryong-Dong, Buk-Gu, Gwangju 500-712, South Korea, +82-62-970-2208, jisong-

Compact Ultra-Wideband Bandpass Filter with Defected Ground Plane Ya.A. Kolmakov, I.B. Vendik St.-Petersburg Electrotechnical University, Dept. of Microelectronics & Radio Engineering, Microwave Microelectronics Lab., 5 Prof. Popov Str. 197376 St.-Petersburg, Russia, Fax: +7 (812) 346-08-67, E-mail: MWLab-eltech.ru Abstract -- An original design of a defected ground microwave wideband filter is p

Very low complexity RF-MEMS technology for wide range tunable microwave filters C. Siegel1, V. Ziegler1, U. Prechtel1, B. Schönlinner1, H. Schumacher2 1 2 EADS Deutschland GmbH, Corporate Research Centre, LG-ME, 81663 Munich, Germany, +498960724203 University of Ulm, Dept. of Electron Devices and Circuits, Albert Einstein Allee 45, 89081 Ulm, Germany photolithographic steps are necessary for the

Low Profile S-Band Dual-Polarized Antenna for SDARS Application Young-Pyo Hong1, Jung-Min Kim1, Soon-Chul Jeong2, Dong-Hyun Kim2, Jong-Gwan Yook1 1 Department of Electrical and Electronic Engineering, Yonsei University, 134 Seodaemoon-Gu, Shinchon-Dong, Seoul, 120-749, Korea 2 Actipass Co. Ltd, 451, Hagal-Ri, Giheung-Eup, Yongin-Si, Kyunggi-Do, 449-906, Korea Tel: +82-2-2123-4618, E-mail: jgyook

Multiple Frequency Notched Planar Monopole Antenna for Multi-band Wireless Systems W.S.Lee, D.Z.Kim,K.J.Kim, K.S.Son,W.G.Lim and J.W.Yu Department of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 373-1 Guseong-Dong, Yuseong-Gu, Teajon, 305-701, Korea, e-mail:drjwyu-ee.kaist.ac.kr Abstract -- A multiple band-notched planar monopole antenna for multi-band wirel

Frequency-Tunable PIN Diode Switch for Software Defined Radio Shingo Tanaka1, Noritaka Taguchi1, Tsuneto Kimura2 and Yasunori Atsumi1 1 Otowave Laboratory Inc., 3-1 Hikari-no-oka, Yokosuka, Kanagawa, 239-0847, Japan, Phone : +81-46-840-1837 2 Yazaki Corporation, 1500 Mishuku, Susono, Shizuoka, 410-1194, Japan, Phone : +81-55-965-3208 performance of the switch is presented from the viewpoints of i

An Analog Mismatch Calibration System for Image-Reject Receivers Bo Shi and Michael, Yan Wah Chia Institute for Infocomm Research 20 Science Park Road, #02-21/25, TeleTech Park Singapore Science Park II Singapore 117674 Abstract -- The image-reject receiver is an architecture that ideally passes the desired signal and rejects its image. However, due to mismatches in the signal path, the imagerejec

Plane-Wave Diffraction at a Grating Composed of Left-Handed Materials Mehrnoosh Vahidpour1 , Mahmoud Shahabadi2 Department of Electrical and Computer Engineering, University of Tehran Kargar Ave. North, P. O. Box 14395-515 Tehran, Iran, Phone: +98 (21) 61114314 1 m.vahidpour-ece.ut.ac.ir, 2 shahabad-ut.ac.ir Abstract-- Binary gratings made of left-handed materials may be considered as novel tools