A 1.2-2.8 GHz tunable low-noise amplifier with 0.8-1.6 dB noise figure

Hao Gao, Zhe Song, Zhe Chen, Domine Leenaerts, Peter Baltus

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

1 Citation (Scopus)
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This paper presents a tunable wideband low-noise amplifier (LNA) covering 1.2 to 2.8 GHz and is realized in a 0.25 μm SiGe:C BiCMOS technology. The LNA covers 80% fractional bandwidth in 16 states using a dual-LC tanks input broadband noise matching technique and a switch capacitor output frequency selection network. The measured minimal noise figure (NF) is 0.8 dB at 1.4 and 1.8 GHz, and the average NF is 1.2 (± 0.4) dB from 1.2 to 2.8 GHz. The best gain is 14 dB at 2 GHz and with ±0.5 dB flatness bandwidth covers from 1.4 GHz to 2.6 GHz. The measured input 1-dB compression point and input IP3 are better than -8 dBm and 3.5 dBm, respectively.
Original languageEnglish
Title of host publication2019 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2019
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Number of pages4
ISBN (Electronic)978-1-7281-1701-0
Publication statusPublished - Jun 2019
EventIEEE Radio Frequency Integrated Circuits Symposium (RFIC) - Boston, United States
Duration: 2 Jun 20194 Jun 2019


ConferenceIEEE Radio Frequency Integrated Circuits Symposium (RFIC)
Abbreviated titleRFIC2019
Country/TerritoryUnited States


  • LNA
  • SiGe
  • Switch capacitor network
  • dual-LC tanks
  • tunable


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