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dc.contributor.advisorDurgin, Dr. Gregory
dc.contributor.authorHassig, Santiago
dc.descriptionThe Tower is an official publication of the Georgia Tech Office of Student Media and is sponsored by the Undergraduate Research Opportunities Program and the Georgia Tech Library. This article appeared in Volume 4, pages 69-77.en_US
dc.description.abstractPassive Radio Frequency Identification (RFID) tags are powered by energy-harvesting charge pumps through AC-to-DC rectification of the wireless RF signal: typically a pulse-interval encoded (PIE) continuous-waveform (CW). These charge pumps are comprised of capacitors and diodes, the latter being the leading barrier of passive tag operation. Specifically, the pump diode turn-on voltage is responsible for limited tag sensitivity, read range, and reliability. The Power Optimized Waveform (POW) is a new, non-invasive transmission signal that improves RFID tag sensitivity by providing higher peak voltages without exceeding Federal Communications Commission (FCC) output power regulations. Two POWs that are tested are the 1-POW, comprised of two sinusoids centered about a carrier signal frequency, and the Square POW, the product of a carrier signal and a voltage modulating square wave. A Dickson charge pump was used to measure the power gain of POW versus CW. Spectral efficiency and charge pump efficiency were calculated at different transmit powers and POW frequency spacing. Positive gain was achieved at low transmit powers (< ~4 dBm), and higher frequency spacing, making POW preferable over CW in low power applications.
dc.description.sponsorshipOffice of Student Media; Undergraduate Research Opportunities Program; Georgia Tech Library.en_US
dc.publisherGeorgia Institute of Technologyen_US
dc.relation.ispartofseriesThe Tower. Volume 4, Spring 2012en_US
dc.titleSynthesis and Testing of Power Optimized Waveforms (POW) with Focus on 1-POW and Square POWen_US

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  • The Tower [38]
    The Undergraduate Research Journal of the Georgia Institute of Technology

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