A 253-280 GHz Wide Tuning Range VCO with -3.5 dBm Peak Output Power in 40-nm CMOS

Surajit Kumar Nath; Junghwan Yoo; Jae Sung Rieh; Daekeun Yoon

doi:10.1109/ESSCIRC53450.2021.9567849

A 253-280 GHz Wide Tuning Range VCO with -3.5 dBm Peak Output Power in 40-nm CMOS

Surajit Kumar Nath, Junghwan Yoo, Jae Sung Rieh, Daekeun Yoon

School of Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This paper presents a wide tuning range push-push voltage-controlled oscillator (VCO) at the sub-THz frequency bands. With the introduction of a novel capacitive splitting feedback (CSF) technique and tunable source degeneration (TSD) network, the proposed VCO can simultaneously archive a wide tuning range while maintaining a high output power. The CSF technique improves the oscillation frequency by reducing the effective transistor capacitances, and a wide tuning range is achieved through the TSD network without employing varactors. The proposed VCO is fabricated in a 40-nm digital CMOS process. It shows a -3.5 dBm peak output power with 1.35% DC-to-RF efficiency and a wide tuning range of 10.16% at a center frequency of 267.2 GHz.

Original language	English
Title of host publication	ESSCIRC 2021 - IEEE 47th European Solid State Circuits Conference, Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	299-302
Number of pages	4
ISBN (Electronic)	9781665437479
DOIs	https://doi.org/10.1109/ESSCIRC53450.2021.9567849
Publication status	Published - 2021 Sep 13
Event	47th IEEE European Solid State Circuits Conference, ESSCIRC 2021 - Virtual, Online, France Duration: 2021 Sep 6 → 2021 Sep 9

Publication series

Name	ESSCIRC 2021 - IEEE 47th European Solid State Circuits Conference, Proceedings

Conference

Conference	47th IEEE European Solid State Circuits Conference, ESSCIRC 2021
Country/Territory	France
City	Virtual, Online
Period	21/9/6 → 21/9/9

Keywords

CMOS
VCO
push-push oscillator
source degeneration
sub-THz

ASJC Scopus subject areas

Artificial Intelligence
Hardware and Architecture
Electrical and Electronic Engineering
Electronic, Optical and Magnetic Materials

Access to Document

10.1109/ESSCIRC53450.2021.9567849

Cite this

Nath, S. K., Yoo, J., Rieh, J. S., & Yoon, D. (2021). A 253-280 GHz Wide Tuning Range VCO with -3.5 dBm Peak Output Power in 40-nm CMOS. In ESSCIRC 2021 - IEEE 47th European Solid State Circuits Conference, Proceedings (pp. 299-302). (ESSCIRC 2021 - IEEE 47th European Solid State Circuits Conference, Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ESSCIRC53450.2021.9567849

A 253-280 GHz Wide Tuning Range VCO with -3.5 dBm Peak Output Power in 40-nm CMOS. / Nath, Surajit Kumar; Yoo, Junghwan; Rieh, Jae Sung et al.

ESSCIRC 2021 - IEEE 47th European Solid State Circuits Conference, Proceedings. Institute of Electrical and Electronics Engineers Inc., 2021. p. 299-302 (ESSCIRC 2021 - IEEE 47th European Solid State Circuits Conference, Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Nath, SK, Yoo, J, Rieh, JS & Yoon, D 2021, A 253-280 GHz Wide Tuning Range VCO with -3.5 dBm Peak Output Power in 40-nm CMOS. in ESSCIRC 2021 - IEEE 47th European Solid State Circuits Conference, Proceedings. ESSCIRC 2021 - IEEE 47th European Solid State Circuits Conference, Proceedings, Institute of Electrical and Electronics Engineers Inc., pp. 299-302, 47th IEEE European Solid State Circuits Conference, ESSCIRC 2021, Virtual, Online, France, 21/9/6. https://doi.org/10.1109/ESSCIRC53450.2021.9567849

Nath SK, Yoo J, Rieh JS, Yoon D. A 253-280 GHz Wide Tuning Range VCO with -3.5 dBm Peak Output Power in 40-nm CMOS. In ESSCIRC 2021 - IEEE 47th European Solid State Circuits Conference, Proceedings. Institute of Electrical and Electronics Engineers Inc. 2021. p. 299-302. (ESSCIRC 2021 - IEEE 47th European Solid State Circuits Conference, Proceedings). https://doi.org/10.1109/ESSCIRC53450.2021.9567849

Nath, Surajit Kumar ; Yoo, Junghwan ; Rieh, Jae Sung et al. / A 253-280 GHz Wide Tuning Range VCO with -3.5 dBm Peak Output Power in 40-nm CMOS. ESSCIRC 2021 - IEEE 47th European Solid State Circuits Conference, Proceedings. Institute of Electrical and Electronics Engineers Inc., 2021. pp. 299-302 (ESSCIRC 2021 - IEEE 47th European Solid State Circuits Conference, Proceedings).

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abstract = "This paper presents a wide tuning range push-push voltage-controlled oscillator (VCO) at the sub-THz frequency bands. With the introduction of a novel capacitive splitting feedback (CSF) technique and tunable source degeneration (TSD) network, the proposed VCO can simultaneously archive a wide tuning range while maintaining a high output power. The CSF technique improves the oscillation frequency by reducing the effective transistor capacitances, and a wide tuning range is achieved through the TSD network without employing varactors. The proposed VCO is fabricated in a 40-nm digital CMOS process. It shows a -3.5 dBm peak output power with 1.35% DC-to-RF efficiency and a wide tuning range of 10.16% at a center frequency of 267.2 GHz. ",

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N1 - Funding Information: The authors would like to thank Taiwan Semiconductor Research Institute (TSRI), Taiwan, R.O.C for the chip fabrication. This work is financially supported by the Ministry of Science and Technology (MOST), Taiwan, R.O.C (MOST 109-2221-E-009-140-). Publisher Copyright: © 2021 IEEE.

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N2 - This paper presents a wide tuning range push-push voltage-controlled oscillator (VCO) at the sub-THz frequency bands. With the introduction of a novel capacitive splitting feedback (CSF) technique and tunable source degeneration (TSD) network, the proposed VCO can simultaneously archive a wide tuning range while maintaining a high output power. The CSF technique improves the oscillation frequency by reducing the effective transistor capacitances, and a wide tuning range is achieved through the TSD network without employing varactors. The proposed VCO is fabricated in a 40-nm digital CMOS process. It shows a -3.5 dBm peak output power with 1.35% DC-to-RF efficiency and a wide tuning range of 10.16% at a center frequency of 267.2 GHz.

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A 253-280 GHz Wide Tuning Range VCO with -3.5 dBm Peak Output Power in 40-nm CMOS

Abstract

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Keywords

ASJC Scopus subject areas

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