An active guarding technique for substrate noise suppression on LC-tank oscillators

Hao Ming Chao; Kuei-Ann Wen; Michiel Steyaert

doi:10.1109/ASSCC.2011.6123596

An active guarding technique for substrate noise suppression on LC-tank oscillators

Hao Ming Chao^*, Kuei-Ann Wen, Michiel Steyaert

^*Corresponding author for this work

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

Abstract

An active guarding technique is demonstrated for substrate immunity improvement on LC-tank oscillators. Active components in the oscillator, which are sensitive to substrate noise and contribute to the output most, are guarded from the substrate perturbation by applying the active guarding circuit to decouple and also compensate the noise current. To evaluate the effectiveness of the proposed technique, noise signals of both single and multiple tones of various frequencies are injected to the substrate close to the guarded transistors and measure the sideband spurs by switching the active guarding circuit on/off respectively. Experimental results showed more than 11 dB noise suppression performances can be achieved in a wide frequency range from DC to 10 GHz. By applying the active guarding circuit to a LC-tank oscillator, more than 17 dB spur suppression performance is obtained in the frequency range of interest.

Original language	English
Title of host publication	2011 Proceedings of Technical Papers
Subtitle of host publication	IEEE Asian Solid-State Circuits Conference 2011, A-SSCC 2011
Pages	385-388
Number of pages	4
DOIs	https://doi.org/10.1109/ASSCC.2011.6123596
State	Published - 2011
Event	7th IEEE Asian Solid-State Circuits Conference, A-SSCC 2011 - Jeju, Korea, Republic of Duration: 14 Nov 2011 → 16 Nov 2011

Publication series

Name	2011 Proceedings of Technical Papers: IEEE Asian Solid-State Circuits Conference 2011, A-SSCC 2011

Conference

Conference	7th IEEE Asian Solid-State Circuits Conference, A-SSCC 2011
Country/Territory	Korea, Republic of
City	Jeju
Period	14/11/11 → 16/11/11

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10.1109/ASSCC.2011.6123596

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Chao, H. M., Wen, K.-A., & Steyaert, M. (2011). An active guarding technique for substrate noise suppression on LC-tank oscillators. In 2011 Proceedings of Technical Papers: IEEE Asian Solid-State Circuits Conference 2011, A-SSCC 2011 (pp. 385-388). Article 6123596 (2011 Proceedings of Technical Papers: IEEE Asian Solid-State Circuits Conference 2011, A-SSCC 2011). https://doi.org/10.1109/ASSCC.2011.6123596

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title = "An active guarding technique for substrate noise suppression on LC-tank oscillators",

abstract = "An active guarding technique is demonstrated for substrate immunity improvement on LC-tank oscillators. Active components in the oscillator, which are sensitive to substrate noise and contribute to the output most, are guarded from the substrate perturbation by applying the active guarding circuit to decouple and also compensate the noise current. To evaluate the effectiveness of the proposed technique, noise signals of both single and multiple tones of various frequencies are injected to the substrate close to the guarded transistors and measure the sideband spurs by switching the active guarding circuit on/off respectively. Experimental results showed more than 11 dB noise suppression performances can be achieved in a wide frequency range from DC to 10 GHz. By applying the active guarding circuit to a LC-tank oscillator, more than 17 dB spur suppression performance is obtained in the frequency range of interest.",

author = "Chao, {Hao Ming} and Kuei-Ann Wen and Michiel Steyaert",

year = "2011",

doi = "10.1109/ASSCC.2011.6123596",

language = "English",

isbn = "9781467303989",

series = "2011 Proceedings of Technical Papers: IEEE Asian Solid-State Circuits Conference 2011, A-SSCC 2011",

pages = "385--388",

booktitle = "2011 Proceedings of Technical Papers",

note = "7th IEEE Asian Solid-State Circuits Conference, A-SSCC 2011 ; Conference date: 14-11-2011 Through 16-11-2011",

}

Chao, HM, Wen, K-A & Steyaert, M 2011, An active guarding technique for substrate noise suppression on LC-tank oscillators. in 2011 Proceedings of Technical Papers: IEEE Asian Solid-State Circuits Conference 2011, A-SSCC 2011., 6123596, 2011 Proceedings of Technical Papers: IEEE Asian Solid-State Circuits Conference 2011, A-SSCC 2011, pp. 385-388, 7th IEEE Asian Solid-State Circuits Conference, A-SSCC 2011, Jeju, Korea, Republic of, 14/11/11. https://doi.org/10.1109/ASSCC.2011.6123596

An active guarding technique for substrate noise suppression on LC-tank oscillators. / Chao, Hao Ming; Wen, Kuei-Ann; Steyaert, Michiel.
2011 Proceedings of Technical Papers: IEEE Asian Solid-State Circuits Conference 2011, A-SSCC 2011. 2011. p. 385-388 6123596 (2011 Proceedings of Technical Papers: IEEE Asian Solid-State Circuits Conference 2011, A-SSCC 2011).

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

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T1 - An active guarding technique for substrate noise suppression on LC-tank oscillators

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AU - Wen, Kuei-Ann

AU - Steyaert, Michiel

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N2 - An active guarding technique is demonstrated for substrate immunity improvement on LC-tank oscillators. Active components in the oscillator, which are sensitive to substrate noise and contribute to the output most, are guarded from the substrate perturbation by applying the active guarding circuit to decouple and also compensate the noise current. To evaluate the effectiveness of the proposed technique, noise signals of both single and multiple tones of various frequencies are injected to the substrate close to the guarded transistors and measure the sideband spurs by switching the active guarding circuit on/off respectively. Experimental results showed more than 11 dB noise suppression performances can be achieved in a wide frequency range from DC to 10 GHz. By applying the active guarding circuit to a LC-tank oscillator, more than 17 dB spur suppression performance is obtained in the frequency range of interest.

AB - An active guarding technique is demonstrated for substrate immunity improvement on LC-tank oscillators. Active components in the oscillator, which are sensitive to substrate noise and contribute to the output most, are guarded from the substrate perturbation by applying the active guarding circuit to decouple and also compensate the noise current. To evaluate the effectiveness of the proposed technique, noise signals of both single and multiple tones of various frequencies are injected to the substrate close to the guarded transistors and measure the sideband spurs by switching the active guarding circuit on/off respectively. Experimental results showed more than 11 dB noise suppression performances can be achieved in a wide frequency range from DC to 10 GHz. By applying the active guarding circuit to a LC-tank oscillator, more than 17 dB spur suppression performance is obtained in the frequency range of interest.

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Chao HM, Wen KA, Steyaert M. An active guarding technique for substrate noise suppression on LC-tank oscillators. In 2011 Proceedings of Technical Papers: IEEE Asian Solid-State Circuits Conference 2011, A-SSCC 2011. 2011. p. 385-388. 6123596. (2011 Proceedings of Technical Papers: IEEE Asian Solid-State Circuits Conference 2011, A-SSCC 2011). doi: 10.1109/ASSCC.2011.6123596

An active guarding technique for substrate noise suppression on LC-tank oscillators

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