Connection One-Communication Circuits and Systems Research Center Phase II

Project: Research project

Project Details

Description

Connection One-Communication Circuits and Systems Research Center Phase II Connection One- Communication Circuits and Systems Research Center REU Supplement: Connection One - Communications, Circuits, and Systems Research Center Phase III - Connection One I/UCRC ***See comments This proposal is to renew the Center NSF support for Phase III from 2012-2017. The focus of the Connection One (www.connectionone.org) consortium is on Communication Circuits and Systems for the next generation of wireless, RF, and Integrated Sensors on a Chip. REU: I/UCRC: Collaborative Research: Cognitive MIMO Communications for Dynamic-spectrum Wireless Networks PI: Dr. Sayfe Kiaei IUCRC Center: Connection One Students: Patricia Markison, Fernando Moraila Summary of Proposed Work 1) Wireless Stethoscope: This project involves the development of a contactless method for monitoring human vital signs, an instrument which can accurately measure heart and respiration rate of a subject under observation from a distance of a few feet. The instrument transmits low power Radio waves in the direction of the subject under observation and senses the reflected waves which carry the signature of the heart and respiration rate and from these the vital signs are estimated. The motion of the heart and chest wall induce a frequency Doppler shift on the incident radio waves, hence by accurately measuring this small Doppler shift on the received signal the respiration rate and heart beat can be remotely measured. The system comprises of analog and digital modules. The analog module consists of an analog front end, the radio transmitter and receiver which contain the RF analog circuits which operate in order of Giga-Hertz. Followed by an analog back end which operates in order of few Kilo-Hertz, this module interfaces the digital and analog system via Digital to Analog (DAC) and Analog to Digital Convertors (ADC). This project will be designed and simulated in Cadence to be fabricated and tested for further use. 2) Digital Power Regulator: The second project involves the development of a completely digital low-dropout regulator. Most regulators have parts that are digital, such as shift registers, counters, etc. and others that are analog, commonly the comparator, VCO, integrator, etc. There are some issues with having analog parts in the regulator, for instance response time, quiescent current, and issues with altering the process technology and thus creating a fully digital LDO regulator becomes advantageous. This LDO regulator would utilize voltage to change the frequency of a ring oscillator. This frequency would be compared to a reference frequency through a VSR: Connection One Communications circuits and Systems Research Center Phase II VSR: Connection One-Communications circuits and Systems Research Center Phase II
StatusFinished
Effective start/end date9/1/078/31/14

Funding

  • National Science Foundation (NSF): $500,000.00

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