5-GHz High Temperature Superconducting Filter Using Coplanar Waveguide Quarter Wavelength Resonator Kunihiro Kawai1, Kei Satoh1, Shoichi Narahashi1, Zhewang Ma2, Yoshio Kobayashi 2 2 NTT DoCoMo, Inc., Wireless Laboratories, 3-5 Hikarino-oka, 239-8536 Yokosuka, Japan, +81-46-840-3500 Saitama University, Faculty of Engineering, 255 Shimo-Okubo, Sakura-ku, 338-8570 Saitama City, Japan, +81-48858-347

Digital Predistortion Linearizer for Compensating Frequency-Dependent IM Distortion Shinji MIZUTA1, Yasunori SUZUKI1, Tetsuo HIROTA2 and Yasushi YAMAO1 NTT DoCoMo, Inc., 3-5 Hikari-no-oka, Yokosuka, Kanagawa, 239-8536, Japan Phone : +81-46-840-3500 Fax : +81-46-840-3787 Email : mizuta-mlab.yrp.nttdocomo.co.jp 2 Kanazawa Institute of Technology, 7-1 Ohgigaoka, Nonoichi, Ishikawa, 921-8501, Japan Ph

On the Feasibility of Single-Chip SiGe Microwave Radiometric Sensors F. Alimenti, S. Bonafoni, V. Palazzari, L. Roselli, A. Scorzoni, P. Basili Dipartimento di Ingegneria Elettronica e dell'Informazione (DIEI), via G. Duranti 93, 06125 Perugia, Italy. Tel: +39-75-585.3642, Fax: +39-75-585.3654, E-mail: alimenti-diei.unipg.it Abstract-- In this work the main performances of the commercial Silicon-G

A Novel Equivalent Circuit Expression for Electromagnetic Coupling between Distributed Line Resonators Tamio Kawaguchi Yoshio Kobayashi Dept. of Electrical and Electronic Systems, Saitama University Shimo-ookubo 255, Sakura-ku, Saitama-shi, Saitama 338-8570, Japan Phone: +81-48-858-3477, Fax: +81-48-857-2529 E-mail: kawaguti-reso.ees.saitama-u.ac.jp Abstract -- A novel equivalent circuit expressio

Small Beam-Switched Antenna with RF Switch for Wireless LAN Kohei Mori Semiconductor Solutions Network Company, Sony Corporation 4-14-1 Asahi-cho, Atsugi-shi, Kanagawa, 243-0014 Japan Abstract -- We propose a small beam-switched antenna using slot Yagi-Uda antenna design with an RF switch for wireless LAN (802.11a). The beam of this antenna is given quad-orthogonal directivity by using an RF swit

Low distortion and compact RF switch circuitry with the combination of PIN-diode and GaAs-FET for GSM quartet-band cellular phone Takahiro Yamashita, Keisuke Fukamachi and Shigeru Kemmochi Advanced Electronics Research Lab. Hitachi Metals, Ltd. 5200 Mikajiri, Kumagaya, 360-0843 Saitama, Japan Phone: +81-48-531-1671, Fax: +81-48-533-7102 Abstract -- We have newly developed the antenna switch module

Development of High Power Microwave Amplifiers with Low Noise and High Linearity Ji Han Joo, Sung Min Jang, Gil Wong Choi and Jin Joo Choi High Power Microwave Engineering Laboratory Kwangwoon University, Department of Radio Science and Engineering, 447-1 Welgye-dong, Nowon-gu, Seoul 139-701, Korea Email: jinchoi-daisy.kw.ac.kr TEL: 82-2-940-5298 Abstract -- High power microwave power amplifiers w

Chireix Power Combining with Saturated Class-B Power Amplifiers Ilkka Hakala1, Leila Gharavi2, Risto Kaunisto3 Nokia Research Center, P.O.Box 407, FIN-00045 NOKIA GROUP, Finland, Phone: +358504821553 Nokia Research Center, P.O.Box 407, FIN-00045 NOKIA GROUP, Finland, Phone: +358504837588 3 Nokia Research Center, P.O.Box 407, FIN-00045 NOKIA GROUP, Finland, Phone: +358504836772 2 1 Abstract -- Thi

An implementation of a broad annular cathode with ceramic substrates for the utilization in the development of a new type of microwave tube Shi-Bok Ryu1,2, Jung-Tae Kim1,2, Tae-Yune Lee1, Hyeck-Hee Lee1, Helmut Bley2 1 KIST Europe Forschungs GmbH, Stuhlsatzenhausweg 97, 66123, Saarbruecken, Germany, 49-681-9382 0 2 LFT, University of Saarland, Department of Production Engineering, Saarbruecken, G

Baseband Adaptive Predistorter to Linearize Power Amplifiers With Memory E. COTTAIS , S. NOMM , Y. WANG , S. TOUTAIN , C. MOOG IREENA Polytech'Nantes, Rue C. Pauc, BP 50609, 44306 Nantes cedex 3, France Ecole Centrale de Nantes, 1 rue de la No¨ , BP 92101, 44321 Nantes cedex 3, France e Email: emmanuel.cottais-polytech.univ-nantes.fr £ ¢ ¡ ¡ 9 Filter Fig. 1. Hammerstein behavioral model