45 GHz Distributed Amplifier with On Chip Drain Resistor Termination Manuel Violas1,2, Paulo M. P. Monteiro1,2, Maurice Gloanec3, Eric Leclerc3, Benoit Lefebvre3 1 Instituto de Telecomunicações, 2Departamento de Electrónica e Telecomunicações da Universidade de Aveiro Campus Universitário de Santiago, 3810-193 AVEIRO ­ PORTUGAL 3 UMS S.A.S, United Monolithic Semiconductors,Route Départementale 12

Novel Active Load for 40 Gbps Optical Modulator Drivers Régis Claveau1, 2, Robert Soares2, Mhamed Drissi1 1 IETR­ INSA, 20 avenue des Buttes des Coësmes, 35043 Rennes Cedex, France, +33 (0)2 23 23 82 00 2 DA-LightCom, 4 rue Galilée, 22300 Lannion, France, +33 (0)2 96 48 70 80 voltage supply decoupling capacitors, dc blocking capacitors (>150nF), very broadband bias supply circuitry (100 kHz - 40

A GaAs PHEMT Distributed Amplifier with Low Group Delay Time Variation for 40 GBit/s Optical Systems M. H¨ fele, C. Schw¨ rer1 , K. Beilenhoff2 and H. Schumacher a o Dept. of Electron Devices and Circuits, University of Ulm, D-89069 Ulm, Germany Phone: + 49 731 5036189, Fax: +49 731 5026155, e-mail: mhaefe-ebs.e-technik.uni-ulm.de 1 Formerly with United Monolithic Semiconductors (UMS), S.A.S., Ors

SiGe broadband amplifiers with up to 80 GHz bandwidth for optical applications at 43 Gbit/s and beyond O. Wohlgemuth, P. Paschke, and Y. Baeyens* Lucent Technologies, Optical Networking Group, Thurn und Taxis Str. 10, 90411 Nuremberg, Germany, Phone: ++49 911 5263814, Fax: ++49 911 5264823, e-mail: ow2-lucent.com *Lucent Technologies, Bell Laboratories, 600 Mountain Ave., Murray Hill, NJ 07974, US

Abstract -- Cost effective and simple solution is proposed to a large linear array element failure problem depending on array thinning method. Genetic algorithm is used to optimise the state of the remained antenna elements. The obtained results indicate that the performance of the proposed method is very good even in the case of large number of elements are defected due to external conditions. E

A Multimode Equivalent Network Approach for the Analysis of a "Realistic" Finite Array of Open Ended Waveguides A. Neto(1), R. Bolt(1), G. Gerini(1), D. Schmitt(2) TNO-Physics and Electronics Laboratory (TNO-FEL), P.O. Box 96864, 2509 JG The Hague, The Netherlands, phone: +31(0)703740297 (2) European Space and Technology Centre (ESTEC) , P.O. Box 299, 2200 AG Noordwijk, The Netherlands (1) Abstra

Development of a dual band circularly polarized microstrip reflectarray M. R. Chaharmir, J. Shaker, M. Cuhaci Communications Research Centre Canada, 3701 Carling Avenue, Ottawa, Ontario K2H 8S2 ABSTRACT -- The development of a dual-band circularly polarized microstrip reflectarray in Ka-band is presented. This reflectarray is composed of a set of cross dipole cell elements for each band that are

A Novel Leaky-Wave Retrodirective Reflector Using Short/Matched Terminations Christophe Caloz, Sungjoon Lim and Tatsuo Itoh 1 University of California, Los Angeles, CA 90095, 310-206-11710, caloz-ee.ucla.edu Abstract -- A novel leaky-wave retrodirective reflector using short and matched terminations is presented. The principle of this reflector consists of terminating a backfire-to-endfire leaky

Beam-steerable Planar Array Antennas Using Varactor Diodes for 60-GHz-band Applications Hiroki Tanaka and Takashi Ohira ATR Adaptive Communications Research Laboratories 2-2-2 Keihanna Science City, Kyoto, 619-0288 Japan Phone: +81-774-95-1549, Fax: +81-774-95-1508, E-mail: h-tanaka-atr.co.jp Abstract -- In this paper we present low-cost and compact beam-steerable planar microstrip antennas for 60

Scattering Parameter Pole-Zero Optimization of Microwave Filters Klaus Krohne and R¨ diger Vahldieck u Swiss Federal Institute of Technology (ETH), Laboratory for Electromagnetic Fields and Microwave Electronics (IFH) Gloriastrasse 35, CH-8092 Zurich, Switzerland, Tel. +41 1 632 7396, Email: kkrohne-ifh.ee.ethz.ch Abstract-- This paper presents a filter optimization technique that directly optimiz