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A W-band RF-MEMS switched LNA in a 70 nm mHEMT process
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Electronics.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Electronics.
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2015 (English)In: International Journal of RF and Microwave Computer-Aided Engineering, ISSN 1096-4290, E-ISSN 1099-047X, Vol. 25, no 7, 639-646 p.Article in journal (Refereed) Published
Abstract [en]

This work presents a monolithic integrated reconfigurable active circuit consisting of a W-band RF micro-electro-mechanical-systems (MEMS) Dicke switch network and a wideband low-noise amplifier (LNA) realized in a 70 nm gallium arsenide (GaAs) metamorphic high electron mobility transistor process technology. The RF-MEMS LNA has a measured gain of 10.2-15.6 dB and 1.3-8.2 dB at 79-96 GHz when the Dicke switch is switched ON and OFF, respectively. Compared with the three-stage LNA used in this design the measured in-band noise figure (NF) of MEMS switched LNA is minimum 1.6 dB higher. To the authors' knowledge, the experimental results represent a first time demonstration of a W-band MEMS switched LNA monolithic microwave integrated circuit (MMIC) in a GaAs foundry process with a minimum NF of 5 dB. The proposed novel integration of such MEMS switched MMICs can enable more cost-effective ways to realize high-performance single-chip mm-wave reconfigurable radiometer front-ends for space and security applications, for example. (c) 2015 Wiley Periodicals, Inc. Int J RF and Microwave CAE 25:639-646, 2015.

Place, publisher, year, edition, pages
2015. Vol. 25, no 7, 639-646 p.
Keyword [en]
low-noise amplifier, millimeter wave, monolithic microwave integrated circuits, radiometer, RF micro-electro-mechanical-systems, W-band
National Category
Other Engineering and Technologies
Identifiers
URN: urn:nbn:se:uu:diva-262412DOI: 10.1002/mmce.20902ISI: 000359862600010OAI: oai:DiVA.org:uu-262412DiVA: diva2:855302
Funder
EU, FP7, Seventh Framework Programme, 288531
Available from: 2015-09-21 Created: 2015-09-15 Last updated: 2017-12-04Bibliographically approved

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Reyaz, ShakilaMalmqvist, Robert

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