Title
A near-field modulation chopping stabilized injection-locked oscillator sensor for protein conformation detection at microwave frequency
Abstract
A near-field modulation chopping technique is implemented in an injection-locked oscillator sensor for the detection of protein conformation changes. With the addition of shielding electrodes, the signal is chopped by electronically switching the paths of the displacement sensing currents while minimizing the up-conversion of the 1/f noise. To maximize the dynamic range, feedback-around-sensor utilizing embedded varactors is applied. A 16-GHz prototype in 65-nm CMOS demonstrates the techniques lower the 1/f corner frequency from 10 to 0.25 kHz while achieving 74.5 dB of dynamic range. Bio-molecular sensing is validated with thermal-cycled bovine serum albumin (BSA) solutions at different conditions.
Year
Venue
Field
2015
Symposium on VLSI Circuits-Digest of Papers
Dynamic range,Electromagnetic shielding,Computer science,Injection locking,Near and far field,Electronic engineering,CMOS,Modulation,Frequency modulation,Cutoff frequency
DocType
Citations 
PageRank 
Conference
1
0.37
References 
Authors
0
5
Name
Order
Citations
PageRank
Jun-Chau Chien113019.66
Erh-Chia Yeh291.51
Luke P. Lee391.51
Mekhail Anwar4134.73
Ali M. Niknejad5942148.48