A 6.5/11/17.5/30-GHz high throughput interferometer-based reactance sensors using injection-locked oscillators and ping-pong nested chopping

Jun Chau Chien, Mekhail Anwar, Erh Chia Yeh, Luke P. Lee, Ali M. Niknejad

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

14 Scopus citations

Abstract

A series of high-sensitivity reactance sensors at 6.5/11/17.5/30-GHz is demonstrated for dielectric spectroscopy sensing on a single micron-size biological specimen. SNR is enhanced with the combination of interferometry and injection-locked oscillator sensors while the offset incurred by chopping-ripple is reduced through ping-pong nested chopping. The sensors achieve a sensitivity of less than 1.25 aF at 100-kHz, enabling label-free cellular detection as a new analytical tool.

Original languageEnglish
Title of host publication2014 Symposium on VLSI Circuits, VLSIC 2014 - Digest of Technical Papers
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781479933273
DOIs
StatePublished - 2014
Event28th IEEE Symposium on VLSI Circuits, VLSIC 2014 - Honolulu, HI, United States
Duration: 10 Jun 201413 Jun 2014

Publication series

NameIEEE Symposium on VLSI Circuits, Digest of Technical Papers

Conference

Conference28th IEEE Symposium on VLSI Circuits, VLSIC 2014
Country/TerritoryUnited States
CityHonolulu, HI
Period10/06/1413/06/14

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