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

R. Malmqvist, C. Samuelsson, W. Simon, D. Smith, Pekka Rantakari, Tauno Vähä-Heikkilä, S. Reyaz, Jussi Varis, R. Baggen

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

5 Citations (Scopus)

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
Original languageEnglish
Title of host publicationProceedings of the 6th European Microwave Integrated Circuits Conference
Pages160-163
ISBN (Electronic)978-2-8748-7023-1
Publication statusPublished - 2011
MoE publication typeA4 Article in a conference publication
Event6th European Microwave Conference, EuMC 2011 - Manchester, United Kingdom
Duration: 10 Oct 201111 Oct 2011

Conference

Conference6th European Microwave Conference, EuMC 2011
Abbreviated titleEuMC 2011
CountryUnited Kingdom
CityManchester
Period10/10/1111/10/11

Keywords

  • Low noise amplifiers
  • MMIC
  • radio frequency microelectromechanical systems
  • switches

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    Malmqvist, R., Samuelsson, C., Simon, W., Smith, D., Rantakari, P., Vähä-Heikkilä, T., Reyaz, S., Varis, J., & Baggen, R. (2011). Reconfigurable wideband LNAs using ohmic contact and capacitive RF-MEMS switching circuits. In Proceedings of the 6th European Microwave Integrated Circuits Conference (pp. 160-163) https://ieeexplore.ieee.org/document/6102835