A Wideband CMOS On-Chip Terahertz Frequency Detector with Slow Wave Structure

Doyoon Kim, Kiryong Song, Richard Al Hadi, Heekang Son, Jungsoo Kim, Yan Zhao, Jae Sung Rieh

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


This letter presents a wideband on-chip frequency detector implemented in a 65-nm CMOS technology. The frequency detector is composed of a fish bone like transmission line and a series of distributed power detectors with a parallel-to-serial readout circuit. A slow wave structure is employed in the transmission line for improved area efficiency. The frequency is extracted from the waveform profile of the standing wave formed along the transmission line, which is obtained by the local power levels of the wave measured by the detectors. The extracted frequencies showed a good agreement with the injected signal frequency for a measured frequency range of 120-360 GHz. The chip size is $400\times 180\,\,\mu \text{m}^{2}$ excluding probing pads.

Original languageEnglish
Article number9393381
Pages (from-to)600-603
Number of pages4
JournalIEEE Microwave and Wireless Components Letters
Issue number6
Publication statusPublished - 2021 Jun

Bibliographical note

Funding Information:
Manuscript received March 10, 2021; accepted March 29, 2021. Date of publication April 1, 2021; date of current version June 7, 2021. This work was supported in part by the Institute of Information and Communications Technology Planning and Evaluation (IITP) funded by the Korea Government (MSIT) under Grant 2016-0-00185 and in part by the Samsung Research Funding and Incubation Center of Samsung Electronics under Project SRFC-MA1702-02. (Corresponding author: Jae-Sung Rieh.) Doyoon Kim, Kiryong Song, Heekang Son, Jungsoo Kim, and Jae-Sung Rieh are with the School of Electrical Engineering, Korea University, Seoul 02841, South Korea (e-mail: jsrieh@korea.ac.kr).

Publisher Copyright:
© 2001-2012 IEEE.


  • CMOS integrated circuits
  • frequency detection
  • signal reconstruction
  • system-on-chip

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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