Compact 141-GHz differential amplifier with 20-dB peak gain and 22-GHz 3-dB bandwidth

Shinsuke Hara, Kosuke Katayama, Kyoya Takano, Issei Watanabe, Norihiko Sekine, Akifumi Kasamatsu, Takeshi Yoshida, Shuhei Amakawa, Minoru Fujishima

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


This paper presents a wideband differential amplifier operating at 141 GHz in 40-nm CMOS. It is composed of five differential common source stages with cross-coupled capacitors. A small-signal gain of 20dB and a 3-dB bandwidth of 22 GHz are achieved. It consumes 75mW from a 0.94-V voltage supply. The die area with balun and pads is 945 ×842 μm2 and the size of the core not including input/output matching networks is 201 × 284 μm2. The small core area is made possible by using a refined "fishbone" layout technique.

Original languageEnglish
Pages (from-to)1156-1163
Number of pages8
JournalIEICE Transactions on Electronics
Issue number10
Publication statusPublished - 2016 Oct
Externally publishedYes


  • Amplifiers
  • CMOS process
  • Frequency estimation
  • Millimeter wave circuits

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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