A 0.54-0.55 THz 2×4 coherent source array with EIRP of 24.4 dBm in 65nm CMOS technology

Yan Zhao, Hsin Chia Lu, Hong Pei Chen, Yu Teng Chang, Rulin Huang, Huan Neng Chen, Chewnpu Jou, Fu Lung Hsueh, Mau-Chung Chang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

17 Scopus citations

Abstract

This paper presents a monolithically integrated 2×4 coherent source array operating at 0.54-0.55 Tera-Hertz (THz) in 65nm digital CMOS technology. The source array contains 20 oscillating elements which can radiate in-phase THz signal via each of their own differential slot ring antennas. Each of the oscillating elements is made of a triple-pushed Colpitts voltage controlled oscillator (TPCVCO). Among these oscillating elements, 16 are used for radiation source cores and 4 are used for synchronization bridges. The source array is tested to radiate 61 and 126 μW peak power near 0.55 THz by consuming 0.5 and 1.3W DC power, respectively. According to measured antenna directivity of 36.4dBi and simulated radiation efficiency of 50%, source array's Equivalent Isotropically Radiated Power (EIRP) can be estimated as 21.2 and 24.4 dBm, respectively. The output spectrum can also be tuned from 0.54 to 0.55 THz by varying the transistor bulk voltage. The measured phase noise is -79dBc/Hz at 1 MHz offset. To the best of our knowledge, this is the 1st coherent THz source made of monolithically integrated silicon IC technology beyond 0.5 THz.

Original languageEnglish
Title of host publication2015 IEEE MTT-S International Microwave Symposium, IMS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479982752
DOIs
StatePublished - 24 Jul 2015
EventIEEE MTT-S International Microwave Symposium, IMS 2015 - Phoenix, United States
Duration: 17 May 201522 May 2015

Publication series

Name2015 IEEE MTT-S International Microwave Symposium, IMS 2015

Conference

ConferenceIEEE MTT-S International Microwave Symposium, IMS 2015
CountryUnited States
CityPhoenix
Period17/05/1522/05/15

Keywords

  • Tera-Hertz (THz)
  • coherent radiation source
  • on-chip antenna
  • oscillator array
  • power combination

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    Zhao, Y., Lu, H. C., Chen, H. P., Chang, Y. T., Huang, R., Chen, H. N., Jou, C., Hsueh, F. L., & Chang, M-C. (2015). A 0.54-0.55 THz 2×4 coherent source array with EIRP of 24.4 dBm in 65nm CMOS technology. In 2015 IEEE MTT-S International Microwave Symposium, IMS 2015 [7166806] (2015 IEEE MTT-S International Microwave Symposium, IMS 2015). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/MWSYM.2015.7166806