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Large-Area Electronics for Wireless-Sensing Applications.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Large-Area Electronics for Wireless-Sensing Applications./
Author:	Wu, Can.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2021,
Description:	232 p.
Notes:	Source: Dissertations Abstracts International, Volume: 83-05, Section: B.
Contained By:	Dissertations Abstracts International83-05B.
Subject:	Electrical engineering. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28645582
ISBN:	9798471111523

Large-Area Electronics for Wireless-Sensing Applications.
Wu, Can.

Large-Area Electronics for Wireless-Sensing Applications. - Ann Arbor : ProQuest Dissertations & Theses, 2021 - 232 p.

Source: Dissertations Abstracts International, Volume: 83-05, Section: B.

Thesis (Ph.D.)--Princeton University, 2021.

This item must not be sold to any third party vendors.

Future intelligent sensing systems envision seamless integration of a large number of physical objects and sensors, which can be wirelessly addressed with high spatial specificity to enable context-awareness for perception tasks. In order to do so, the systems require monolithic, flexible, and large-area form factors. While mainstream technologies like Si-CMOS are limited by chip size and rigid substrate, large-area electronics (LAE) has the potential to meet these requirements thanks to low-temperature processing. However, due to the low performance of the LAE devices, i.e., thin-film transistors (TFTs), thus far, the highest operation frequency achieved in LAE is only about 10 MHz, far below the system requirements in the gigahertz range.In this work, we address this challenge by device, circuit, and system co-designs. First, at the device level, gigahertz cut-off frequencies for zinc-oxide (ZnO) TFTs, acting as both active and passive devices, are demonstrated. They bring LAE into the radio frequency (RF) domain and open an unprecedented design space for realizing high spatial resolutions in wireless systems. Next, we develop oscillator circuits and resonant RF switches. Using them as building blocks, we design and build three wireless systems operating at gigahertz frequencies: (1) a phased antenna array, which enables fine beam control; (2) a reconfigurable antenna with dynamically tunable operating frequency and directionality; and (3) a fully passive backscatterer with zero static power consumption, enabling blind beamforming in the incident beam direction.

ISBN: 9798471111523Subjects--Topical Terms:

649834
Electrical engineering.
Subjects--Index Terms:

Electronics

Large-Area Electronics for Wireless-Sensing Applications.
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300 $a 232 p.
500 $a Source: Dissertations Abstracts International, Volume: 83-05, Section: B.
500 $a Advisor: Sturm, James C.;Verma, Naveen.
502 $a Thesis (Ph.D.)--Princeton University, 2021.
506 $a This item must not be sold to any third party vendors.
520 $a Future intelligent sensing systems envision seamless integration of a large number of physical objects and sensors, which can be wirelessly addressed with high spatial specificity to enable context-awareness for perception tasks. In order to do so, the systems require monolithic, flexible, and large-area form factors. While mainstream technologies like Si-CMOS are limited by chip size and rigid substrate, large-area electronics (LAE) has the potential to meet these requirements thanks to low-temperature processing. However, due to the low performance of the LAE devices, i.e., thin-film transistors (TFTs), thus far, the highest operation frequency achieved in LAE is only about 10 MHz, far below the system requirements in the gigahertz range.In this work, we address this challenge by device, circuit, and system co-designs. First, at the device level, gigahertz cut-off frequencies for zinc-oxide (ZnO) TFTs, acting as both active and passive devices, are demonstrated. They bring LAE into the radio frequency (RF) domain and open an unprecedented design space for realizing high spatial resolutions in wireless systems. Next, we develop oscillator circuits and resonant RF switches. Using them as building blocks, we design and build three wireless systems operating at gigahertz frequencies: (1) a phased antenna array, which enables fine beam control; (2) a reconfigurable antenna with dynamically tunable operating frequency and directionality; and (3) a fully passive backscatterer with zero static power consumption, enabling blind beamforming in the incident beam direction.
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653 $a Electronics
653 $a Wireless sensing
653 $a Perception tasks
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