NDLI: Reconfigurable wideband LNAs using ohmic contact and capacitive RF-MEMS switching circuits

Content Provider	IEEE Xplore Digital Library
Author	Malmqvist, R. Samuelsson, C. Simon, W. Smith, D. Rantakari, P. Vaha-Heikkila, T. Reyaz, S. Varis, J. Baggen, R.
Copyright Year	2011
Description	Author affiliation: Swedish Defence Research Agency (FOI), Olaus Magnus väg 42, SE-58330 Linköping, Sweden (Malmqvist, R.; Samuelsson, C.) \|\| VTT Technical Research Centre of Finland, Tietotie 3, P.O. Box 1000, 02044 VTT, Espoo, Finland (Rantakari, P.; Vaha-Heikkila, T.; Varis, J.) \|\| IMST GmbH, Carl-Friedrich-Gauss-Str.2, D-47475 Kamp-Lintfort, Germany (Simon, W.; Baggen, R.) \|\| OMMIC, 22 Avenue Descartes-B.P. 11, 94453 Limeil-Brevannes, Cedex, France (Smith, D.) \|\| Uppsala University, Ångströmlaboratoriet, Lägerhyddsvägen 1, Box 337, 751 05 Uppsala, Sweden (Reyaz, S.)
Abstract	We present two wideband reconfigurable LNA hybrid circuits realized using ohmic contact and capacitive RF-MEMS SPDT switch networks made on GaAs and quartz substrates, respectively. The wideband GaAs MEMS SPDT switch circuit used presents a loss of less than 1.0 dB and isolation higher than 15 dB from DC up to 34 GHz and the capacitive MEMS SPDT switch circuit has 0.9 dB of in-band loss and 8 dB of isolation at 18 GHz. The ohmic contact and capacitive RF-MEMS low-power switched LNAs maintain a high gain and linearity together with NF=3–5 dB at 5–26 GHz and 12–26 GHz, respectively. The two reconfigurable wideband LNAs further present 18 dB and 11 dB of switched (ON and OFF state) isolation at 18 GHz.
Starting Page	160
Ending Page	163
File Size	743912
Page Count	4
File Format	PDF
ISBN	9781612842363
e-ISBN	9782874870231
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-10-10
Publisher Place	United Kingdom
Access Restriction	Subscribed
Rights Holder	EUROPEAN MICROWAVE ASSOC
Subject Keyword	Micromechanical devices Radio frequency Gallium arsenide Switches MMICs switches Low noise amplifiers Wideband MMIC radio frequency microelectromechanical systems Switching circuits
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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