An active guarding circuit for giga-hertz substrate noise suppression

Hao Ming Chao*, Chien Lung Wang, Wen Shen Wuen, Kuei-Ann Wen

*Corresponding author for this work

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

1 Scopus citations

Abstract

This paper presents an active guarding circuit employing noise decoupling and inversion feedback for substrate noise suppression in high frequency up to GHz. Proposed inversion feedback circuit can efficiently suppress substrate noise up to GHz range by introducing a zero within an amplitude controller. The noise decoupling circuit not only provides a decoupling path, but also senses the noise level for the amplitude controller to perform noise cancellation. By applying the proposed active guarding circuit, the noise suppression of passive guard ring can be improved more than 14dB in the frequency range from DC to lGHz and 7.2dB up to 5GHz. For ldB degradation of noise suppression performance, the input noise level can be up to 90mV at 1MHz and 86mV at lGHz, respectively.

Original languageEnglish
Title of host publicationEuropean Microwave Week 2007 Conference Proceedings, EuMW 2007 - 2nd European Microwave Integrated Circuits Conference, EuMIC 2007
Pages119-122
Number of pages4
DOIs
StatePublished - 1 Dec 2007
EventEuropean Microwave Week 2007, EuMW 2007 - 2nd European Microwave Integrated Circuits Conference, EuMIC 2007 - Munich, Germany
Duration: 8 Oct 200712 Oct 2007

Publication series

NameEuropean Microwave Week 2007 Conference Proceedings, EuMW 2007 - 2nd European Microwave Integrated Circuits Conference, EuMIC 2007

Conference

ConferenceEuropean Microwave Week 2007, EuMW 2007 - 2nd European Microwave Integrated Circuits Conference, EuMIC 2007
Country/TerritoryGermany
CityMunich
Period8/10/0712/10/07

Fingerprint

Dive into the research topics of 'An active guarding circuit for giga-hertz substrate noise suppression'. Together they form a unique fingerprint.

Cite this