Aperture Coupled Microstrip Antenna With QuasiPlanner Surface Mounted Horn A. Abdel-Rahman1, A. K. Verma2, G. S. Kirov3 and A. S. Omar1 1 Chair of Microwave and Communication Engineering University of Magdeburg, Magdeburg, Germany Email: adel-iesk.et.uni-magdeburg.de , a.omar-ieee.org 2 Department of Electronic Science, University of Delhi, South Campus, N. Delhi-110021, India Email: anand48-bol

A circuit prototype for the design of side and in-line coupled cavity filters in waveguide Antonio Morini, Giuseppe Venanzoni, Nickolay Iliev, Tullio Rozzi, Giuseppe Cereda* and Barbara Gabbrielli* Dipartimento di Elettronica e Automatica, Università di Ancona, Ancona, antonio.morini-unian.it * Alcatel Italia S.p.A., Vimercate (MI), giuseppe.cereda-alcatel.it ABSTRACT This paper presents a new c

Multimode, Multiparametric Surrogate Models for Fast Design of Waveguide Components Adam Lamecki, Piotr Kozakowski and Michal Mrozowski Gda´ sk University of Technology n Faculty of Electronics, Telecommunications and Informatics (ETI) Narutowicza 11/12, 80-952 Gda´ sk, Poland n E-mail : adlam-eti.pg.gda.pl, mim-pg.gda.pl, fax : +48 58 3471228 Abstract-- An efficient technique of the multiparamet

Yield-Driven Design of Direct-Coupled Waveguide Filters with Minimum Use of Full Wave EM Solvers Kjetil Folgerø and Jan Kocbach Nera ASA, Nera Research, Kokstadveien 23, P.O. Box 7090, N-5020 Bergen, NORWAY Tel +47 55225100, Fax +47 55225299. Email: kfo-nera.no, jko-nera.no Abstract -- To reduce costly prototyping and allow for short design cycles in the design of tuningfree waveguide filters, it

Fast direct electromagnetic optimization of a microwave filter without diagonal cross-couplings through model extraction Alejandro Garc´a­Lamp´ rez1 , Sergio Llorente­Romano1 , i e Magdalena Salazar­Palma1 and Tapan K. Sarkar2 Dpto. Se~ ales, Sistemas y Radiocomunicaciones, ETSI Telecomunicaci´ n, n o Universidad Polit´ cnica de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain e Tel: 34-91-33

Simplified design of microwave filters with asymmetric transfer functions S.Bila1, D.Baillargeat1, S.Verdeyme1, F.Seyfert2, L.Baratchart2, C.Zanchi3, J.Sombrin3 Phone: (+33) 555 45 77 40; Fax: (+33) 555 45 76 49; Email: bila-ircom.unilim.fr 1 : IRCOM, 123 avenue Albert Thomas, 87060 Limoges, France; 2 : INRIA, 2004 route des Lucioles, 06902 Sophia Antipolis, France; 3 : CNES, 18 avenue Edouard Bel

The IMD Sweet Spots Varied with Gate Bias Voltages and Input Powers in RF LDMOS Power Amplifiers Seung-Yup Lee1, Kye-Ik Jeon2, Yong-Sub Lee1, Kang-Seung Lee1, and Yoon-Ha Jeong1 1 Department of Electronic and Electrical Engineering, Pohang University of Science and Technology, Pohang, Kyungbuk, 790-784, Republic of Korea, +82-54-279-2897 hunter73-postech.ac.kr 2 RFcore Ltd., Bundang, Sungnam, Kyu

BIAS CIRCUIT TOPOLOGIES FOR MINIMIZATION OF RF AMPLIFIER MEMORY EFFECTS Ahmad Khanifar, Nikolai Maslennikov and Bill Vassilakis Powerwave Technologies Inc, 1801 E. St. Andrew Place, Santa Ana, CA 92705, USA Abstract -- Memory effects in amplifiers can be described as the dependence of the output signal not only to the instantaneous input, but also to previous inputs. In a system where these effect

A Dynamic Bias Control Technique of PHEMT SSPA for Optimised PAE and EVM applied to MQAM Satellite Communication Systems S. Forestier1, P. Bouysse1, R. Quere1, A. Mallet2, J.M. Nebus1, L. Lapierre21 1 University of Limoges, IRCOM, CNRS, 7 rue Jules Valles, 19100 Brive, France. 2 CNES Toulouse, 18 Av. Edouard Belin, 31055 Toulouse, France. amplifier at a fixed power gain closed to gain compression

A New Design Method for Performance Improvement of High Power Amplifier by Using the Matching Circuit of Defected Ground Structure Yong-Sung Cha, Byeong-Gwon Kang, Young-Tae Kim, Sun-Hyeong Kim, Jun-Seok Park and Jae-Bong Lim Kookmin Univ., School of Electronic Engineering, 861-1 Chongnung-dong, Songbuk-gu, Seoul, 136-702, Korea Soonchunhyang Univ., School of Information Technology Engineering,