CMOS sources and detectors for sub-millimeter wave applications

Dongha Shim, Yaming Zhang, Ruonan Han, Dae Yeon Kim, Youngwan Kim, Shinwoong Park, Zeshan Ahmad, Eun Young Seok, K. O. Kenneth

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

1 Scopus citations

Abstract

An integrated chain composed of an 195-GHz oscillator with frequency doubled output at ∼390 GHz followed by two cascaded ÷2 injection locked frequency dividers with output frequency of ∼49 GHz is demonstrated in 45-nm CMOS. The peak power radiated at ∼390 GHz by an on-chip antenna is ∼2 μW. This work indicates it is possible to phase-lock submillimeter wave signals in CMOS. Polysilicon Gate separated Schottky diodes that can be fabricated without any process modifications in a foundry 130-nm CMOS process are utilized to implement 280-GHz and 860-GHz detectors for imaging. A fully-integrated 280-GHz 4×4 imager array exhibits measured NEP of 29pW/Hz1/2 and responsivity of 5.1kV/W (323V/W without the amplifier). The 860-GHz detector without an amplifier achieves responsivity of 273V/W and NEP of 42pW/Hz1/2.

Original languageEnglish
Title of host publication2013 Asia-Pacific Microwave Conference Proceedings, APMC 2013
Pages512-514
Number of pages3
DOIs
StatePublished - 2013
Event2013 3rd Asia-Pacific Microwave Conference, APMC 2013 - Seoul, Korea, Republic of
Duration: 5 Nov 20138 Nov 2013

Publication series

NameAsia-Pacific Microwave Conference Proceedings, APMC

Conference

Conference2013 3rd Asia-Pacific Microwave Conference, APMC 2013
Country/TerritoryKorea, Republic of
CitySeoul
Period5/11/138/11/13

Keywords

  • CMOS
  • Schottky diode
  • detector
  • imager
  • on-chip antenna
  • phase-lock
  • source
  • sub-millimeter wave

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