Inproceedings,

An S-band EPR-on-a-chip Receiver in <tex>$0.13\,\mum$</tex> BiCMOS

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2021 28th IEEE International Conference on Electronics, Circuits, and Systems (ICECS), page 1-5. (November 2021)
DOI: 10.1109/ICECS53924.2021.9665504

Abstract

In this paper, we present a chip-integrated receiver for electron paramagnetic resonance (EPR), designed for operation in the S-band (2-4 GHz). This EPR-on-a-chip receiver consists of a low-noise amplifier, followed by quadrature downconversion mixers and intermediate-frequency variable gain amplifiers. It also incorporates a frequency generation block. The chip is realized in a <tex>$0.13-m$</tex> SiGe BiCMOS technology and occupies an area of <tex>$1100 900\ m^2$</tex>. The receiver's measured input-referred voltage noise density within the band of interest is <tex>$720 pV/\textHz$</tex>. Proof-of-concept EPR measurements validate the proposed approach.

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