Bandwidth and Efficiency Improvements in Cascaded Single-Stage Distributed Amplifier Bal S.Virdee, Avtar S.Virdee, Ben Banyamin* University of North London, School of Communications Technology & Mathematical Sciences, 166-220 Holloway Road, London N7 8DB, U.K., Email: b.virdee-unl.ac.uk Filtronic Components Limited, 8 Vincent Avenue, Crownhill, Milton Keynes, U.K.,Email: a.virdee-fcl.com *Now at N

1 Power amplifier with integrated power control loop. D. Prikhodko, R. Burdenski, P. Lok, F. van Straten, U. Maurer, J. Cairo Introduction The GSM standard, as well as other digital wireless communications standards, requires accurate control of a mobile unit's transmitted power in a wide dynamic range. In such a way transmitted power from mobile station (MS) to base station (BS) has to be transm

Effect of Input Harmonic Termination on High Efficiency HBT Amplifiers for Mobile Communications Akira Ohta, Shingo Matsuda, Seiki Goto, Akira Inoue, Kenichiro Choumei, Satoshi Suzuki, Ryo Hattori, and Yoshio Matsuda High Frequency & Optical Semiconductor Division, Mitsubishi Electric Corporation 4-1 Mizuhara, Itami, Hyogo 664-8641, Japan Phone: +81-727-84-7375, Fax: +81-727-80-2694, Email: aohta-

A High Efficiency Power Amplifier System for CDMA Cynthia Y. Hang, Yuanxun Wang, Tatsuo Itoh University of California Los Angeles, 405 Hilgard Ave., Los Angeles, CA 90095, cynthiah-ee.ucla.edu In this paper, the study of a new power combining scheme which has either one or four amplifiers on depending upon the levels of input signal, is extended to a system with its RF carrier modulated by a IS-95

Bandpass Filter Design Using a Novel Compact Planar Resonator Massimiliano Simeoni, Serge Verdeyme, Pierre Guillon IRCOM ­ CNRS/University of Limoges, 123 Av. Albert Thomas, 87060 Limoges ­ France. E-mail: msimeoni-ieee.org Abstract. ­ A three­pole Chebyscheff bandpass filter is realized using a novel compact planar resonator: the wired­patch resonator. The structure that results from the design p

Novel Half-Ring Microstrip Resonator C.Grassopoulos, B.Virdee Astrium Ltd, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2AS, U.K., Email: christos.grassopoulos-astrium-space.com University of North London, School of Communications Technology & Mathematical Sciences, 166-220 Holloway Road, London N7 8DB, U.K., Email: b.virdee-unl.ac.uk This paper presents the results of a novel half-ring micro

Low-Cost and High-Q Millimeter-Wave Resonator Using Substrate Integrated Waveguide Technique Y. Cassivi, L. Perregrini*, K. Wu and G. Conciauro* Poly-Grames Research Center, École Polytechnique de Montréal, 3333 Queen Mary, suite R222, Montréal (Qc), Canada, H3V 1A2 (cassivy-grmes.polymtl.ca) * Department of Electronics, University of Pavia, Pavia, via Ferrata 1, I-27100 Pavia (Italy) Abstract --

Full-Wave Investigation on The Coupling Between Odd and Even Modes in CPW Two-poles Resonators. H. Baudrand*, S. Wane*, L. Cohen* and D. Bajon** *ENSEEIHT 2 rue Camichel 31071 Toulouse-France wane-len7.enseeiht.fr , **SUPAERO 10 av. Ed. Belin, 31055 Toulouse-France Abstract -- This paper presents a full-wave investigation on the coupling between odd and even modes in CPW twopoles resonators from a

Adaptive Bow-Tie Antenna with Increased Bandwidth A.G. Yarovoy, Y. Erbas, L. P. Ligthart International Research Centre for Telecommunications-transmission and Radar (IRCTR) Delft University of Technology Mekelweg 4, 2628 CD Delft, The Netherlands; E-mail: a.yarovoy-its.tudelft.nl The paper describes a conceptual approach to develop an ultra-wideband antenna, which can be adapted to the properties

Digital Ultra-Wideband-Sensor Electronics integrated in SiGe-Technology J. Sachs*; P. Peyerl**; M. Kmec*; F. Tkac* * Technische Universität Ilmenau, PF 100565, D-98684 Ilmenau; juergen.sachs-tu-ilmenau.de **MEODAT GmbH Ilmenau, Ehrenbergstraße 11, D-98693 Ilmenau; pey-meodat.de Ultra-Wideband (UWB) sensors are of great interest for a vast number of different applications. Due to their bandwidth th