Abstract
Welcome to the Special Issue on Selected Papers from the ELECO-2011 Conference!, the seventh International Conference on Electrical and Electronics Engineering, held 1–4 December 2011, in Bursa-Turkey. ELECO conferences are organized at international level in odd numbered years and as national conferences in even numbered years. As such ELECO-2011 is the seventh international conference, with participants coming from various countries, presenting papers from the rich spectrum of electrical and electronics engineering discipline. ELECO-2011 is jointly organized by Uludag University, Bursa; Istanbul Technical University (ITU) and the Chamber of Turkish Electrical Engineers (EMO), Bursa Section. The IEEE-Turkey Section and The Scientific and Technological Research Council of Turkey (TUBITAK) are co-sponsors of ELECO-2011. We are grateful to them for their contributions. Considering the broad scope of the technical program, it was probably the largest electrical and electronics engineering conference ever held in Turkey. The scope of the conference covers topics ranging over electric power systems, electrical machines and drives, power electronics, high voltage techniques, electrical materials, electronics, circuits and systems, signal processing, electromagnetics, antennas and propagation, microwave theory, communication systems, mechatronics, control theory, control applications, automation systems, robotics and intelligent control systems. This year 288 papers have been submitted for presentation and 166 papers have been accepted. If we look at the contributions with respect to geographical point of view, it is seen that ELECO’2011 contributions are coming from 19 different countries. Selected papers from previous international ELECO Conferences were invited to be published in extended form in special ELECO issues of international journals, under peer review. Two special ELECO issues appeared in the journal Analog Integrated Circuits and Signal Processing containing selected papers from ELECO’2001 and ELECO’2007. Furthermore, four special ELECO issues appeared in the journal TJEECS: Turkish Journal of Electrical Engineering and Computer Sciences where selected papers from ELECO’2003, 2005, 2007 and 2009 were published in extended form, respectively. This Special Issue on Selected Papers from ELECO’2011 contains extended versions of ten papers presented at the conference. Two papers are selected from invited talks given by world-known scientists during the conference. The other eight are chosen from regular submitted manuscripts. The paper by Yahya Lakys and Alain Fabre entitled ‘‘Multistandard Transceivers: State of the Art and a New Versatile Implementation for Fully Active Frequency Agile Filters’’ was presented at ELECO-2011 as an invited paper. In this paper various architectures of transceivers for current standards are firstly compared, different possibilities to achieve multi-standard transceivers are also recalled and compared. It is demonstrated that the second generation current controlled conveyor operating in current mode is perfectly suitable for the realization of frequency-agile filters. A S. Ozoguz (&) H. H. Kuntman Faculty of Electrical Electronics Engineering, Istanbul Technical University, Maslak, 34469 Istanbul, Turkey e-mail: ozoguz@itu.edu.tr
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