The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
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...
In this paper, a reconfigurable dielectric-based glucose sensor is implemented in 65nm CMOS. Measurements over wide concentration range are achieved through frequency detection while high sensitivity is realized by the interferometer architecture. A sensitivity limit of 20 mg/dL is measured with 0.18-nL of sensing volume. Four independent sensing channels operating from 6 – 30 GHz facilitates broadband...
In this paper, a dual-channel interferometer-based capacitive sensor with high sensitivity is implemented in 65nm CMOS. Such architecture facilitates high throughput flow cytometry applications using intrinsic EM signatures of biological cells. To enhance SNR, injection-locked oscillator is utilized to perform phase amplification with regard to capacitance-induced frequency shift. Noise from on-chip...
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...
In this paper, an on-chip transmission-line sensor with integrated receiver front-end implemented in 65nm CMOS facilitates the measurement of complex permittivity from 1 to 50 GHz for liquid samples. A robust extraction model allows accurate prediction of sample permittivity based on reference liquid calibration and eases the design of the hardware. Front-end circuits include a 60 GHz distributed...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.