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Ph.D. Proposal Oral Exam - Edgar Garay

Event Details

Tuesday, December 3, 2019

11:00am - 1:00pm

Room 509, TSRB

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Event Details

Title:  Silicon-Based Ultra Efficient Mm-Wave and THz Power Generation and Signal Detection For Future Wireless Networks and IoT Devices


Dr. Wang, Advisor

Dr. Cressler, Chair

Dr. Klein

Dr. Chang


The objective of the proposed research is to devise new silicon-based system topologies and circuit design methodologies for power generation and signal detection at the mm-Wave and THz frequency range. The proposed system presented here is intended for deployable internet-of-things devices and sensor networks where low power consumption and high efficiency are requirements for a practical implementation. As a proof-of-concept, a THz oscillator based low power miniature radio integrated with on-chip antennas is proposed. The THz low power radio is based on a reconfigurable fundamental oscillator array that can be used as a THz source in transmission mode and as a THz super-regenerative detector in receiver mode. These low-power miniaturized 2-way radios can be deployed to form highly collaborative networks that can establish neighbor-to-neighbor meter-scale communication. The links formed by the miniature radio nodes can extend and relay information supporting long-distance communication to a base-station located far away. In simulations, the proposed design achieves a maximum output power of 5.56dBm, at a center frequency of 150GHz, a receiver sensitivity of -80dBm, a DC power consumption of 38mW, and a DC-to-EIRP efficiency of 38.9%, which is the highest efficiency reported of all the silicon-based THz transceivers in the 150GHz range. The prototype chip was design using the GlobalFoundries 45nm silicon on insulator process and it occupies a total chip area of 2mm by 2mm.

Last revised November 19, 2019