FACTA UNIVERSITATIS
SERIES: ELECTRONICS AND ENERGETICS

Editor-in-Chief: V.S.STOJANOVIC,   email: vitko@elfak.ni.ac.yu
University of Nis,
Serbia and Montenegro

Corresponding address: Faculty of Electronic Engineering, Department of Electronics,
                       Beogradska 14, P.O. Box 73, 18000 Nis, 
                       Serbia and Montenegro
                       Phone: +381-18-588-399
                       Fax:   +381-18-588-442

Editorial Board:


G.DIMIROVSKI, Istanbul, Turkey       V.SHMERKO, Szczecin, Poland
B.HARRISON, Brisbane, Australia      N.STOJADINOVIC, Nis, Yugoslavia
J.M.KONTOLEON, Thessaloniki, Greece  I.STOJANOVIC, Belgrade, Yugoslavia
M.LUTOVAC, Belgrade, Yugoslavia      M.STOJIC, Belgrade, Yugosl
B.MILOVANOVIC, Nis, Yugoslavia       Z.TANG, Miyazaki-shi, Japan
V.MILOSEVIC, Novi Sad, Yugoslavia    K.TRONDLE, Neubi
T.MURESAN, Timisoara, Romania        J.TSOUKALAS, Thessaloniki, Greece
J.NAHMAN, Belgrade, Yugoslavia       H.WONG, Hong Kong 
G.SCARBATA, Ilmenau, Germany         W.WEBER
                                     I.YATCHEV, Sofia, Bulgaria


Secretary: S.V.NIKOLIC, University of Nis.

 This publication was in part supported by the Serbian Scientific Fondation

Tehnical support: Z.A.Ilic, University of Nis, Serbia and Montenegro

Published by University of Nis, Univerzitetski trg 2, P.O. Box 123,18000 Nis, Serbia and Montenegro

© 2003 by University of Nis, Serbia and Montenegro.
Enquiries concerning sale and distribution are to be addressed to the Publisher.
Printed by -Xcopy- 18000 Nis, Serbia and Montenegro