An Energy Autonomous 400 MHz Active Wireless SAW Temperature Sensor Powered by Vibration Energy Harvesting
An energy autonomous active wireless surface acoustic wave (SAW) temperature sensor system is presented in this paper. The proposed system adopts direct temperature to frequency conversion using a lithium niobate SAW resonator for both temperature sensing and high-Q resonator core in a cross-coupled...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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2016
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| Online Access: | https://hdl.handle.net/10356/82823 http://hdl.handle.net/10220/40333 |
| _version_ | 1824456279865688064 |
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| author | Zhu, Yao Zheng, Yuanjin Gao, Yuan Made, Darmayuda I. Sun, Chengliang Je, Minkyu Gu, Alex Yuandong |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Zhu, Yao Zheng, Yuanjin Gao, Yuan Made, Darmayuda I. Sun, Chengliang Je, Minkyu Gu, Alex Yuandong |
| author_sort | Zhu, Yao |
| collection | NTU |
| description | An energy autonomous active wireless surface acoustic wave (SAW) temperature sensor system is presented in this paper. The proposed system adopts direct temperature to frequency conversion using a lithium niobate SAW resonator for both temperature sensing and high-Q resonator core in a cross-coupled RF oscillator. This arrangement simplifies the temperature sensor readout circuit design and reduces the overall system power consumption. A power conditioning circuit based on buck-boost converter is utilized to provide high efficiency power extraction from piezoelectric energy harvester (PEH) and dynamic system power control. The SAW resonator is fabricated in-house using a two-step lithography procedure while the RF oscillator as well as the PEH power conditioning circuit are implemented in standard 65-nm and 0.18- μm CMOS processes respectively. The measured RF transmitter output power is -15 dBm with a phase noise of -99.4 dBc/Hz at 1 kHz offset, achieving a figure of merit (FOM) of -217.6 dB. The measured temperature sensing accuracy is ±0.6 °C in -40 °C to 120 °C range. Fully powered by a vibration PEH, the proposed energy autonomous system has a self-startup voltage of 0.7 V and consumes an average power of 61.5 μW. |
| first_indexed | 2025-02-19T03:51:35Z |
| format | Journal Article |
| id | ntu-10356/82823 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:51:35Z |
| publishDate | 2016 |
| record_format | dspace |
| spelling | ntu-10356/828232020-03-07T13:57:23Z An Energy Autonomous 400 MHz Active Wireless SAW Temperature Sensor Powered by Vibration Energy Harvesting Zhu, Yao Zheng, Yuanjin Gao, Yuan Made, Darmayuda I. Sun, Chengliang Je, Minkyu Gu, Alex Yuandong School of Electrical and Electronic Engineering Energy autonomous Power management SAW SAW oscillator Temperature sensor Wireless Low power Vibration energy harvest An energy autonomous active wireless surface acoustic wave (SAW) temperature sensor system is presented in this paper. The proposed system adopts direct temperature to frequency conversion using a lithium niobate SAW resonator for both temperature sensing and high-Q resonator core in a cross-coupled RF oscillator. This arrangement simplifies the temperature sensor readout circuit design and reduces the overall system power consumption. A power conditioning circuit based on buck-boost converter is utilized to provide high efficiency power extraction from piezoelectric energy harvester (PEH) and dynamic system power control. The SAW resonator is fabricated in-house using a two-step lithography procedure while the RF oscillator as well as the PEH power conditioning circuit are implemented in standard 65-nm and 0.18- μm CMOS processes respectively. The measured RF transmitter output power is -15 dBm with a phase noise of -99.4 dBc/Hz at 1 kHz offset, achieving a figure of merit (FOM) of -217.6 dB. The measured temperature sensing accuracy is ±0.6 °C in -40 °C to 120 °C range. Fully powered by a vibration PEH, the proposed energy autonomous system has a self-startup voltage of 0.7 V and consumes an average power of 61.5 μW. ASTAR (Agency for Sci., Tech. and Research, S’pore) Accepted version 2016-03-28T09:13:58Z 2019-12-06T15:06:21Z 2016-03-28T09:13:58Z 2019-12-06T15:06:21Z 2015 Journal Article Zhu, Y., Zheng, Y., Gao, Y., Made, D. I., Sun, C., Je, M., et al. (2015). An Energy Autonomous 400 MHz Active Wireless SAW Temperature Sensor Powered by Vibration Energy Harvesting. IEEE Transactions on Circuits and Systems I: Regular Papers, 62(4), 976-985. 1549-8328 https://hdl.handle.net/10356/82823 http://hdl.handle.net/10220/40333 10.1109/TCSI.2015.2402937 en IEEE Transactions on Circuits and Systems I: Regular Papers © 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at: [http://dx.doi.org/10.1109/TCSI.2015.2402937]. 10 p. application/pdf |
| spellingShingle | Energy autonomous Power management SAW SAW oscillator Temperature sensor Wireless Low power Vibration energy harvest Zhu, Yao Zheng, Yuanjin Gao, Yuan Made, Darmayuda I. Sun, Chengliang Je, Minkyu Gu, Alex Yuandong An Energy Autonomous 400 MHz Active Wireless SAW Temperature Sensor Powered by Vibration Energy Harvesting |
| title | An Energy Autonomous 400 MHz Active Wireless SAW Temperature Sensor Powered by Vibration Energy Harvesting |
| title_full | An Energy Autonomous 400 MHz Active Wireless SAW Temperature Sensor Powered by Vibration Energy Harvesting |
| title_fullStr | An Energy Autonomous 400 MHz Active Wireless SAW Temperature Sensor Powered by Vibration Energy Harvesting |
| title_full_unstemmed | An Energy Autonomous 400 MHz Active Wireless SAW Temperature Sensor Powered by Vibration Energy Harvesting |
| title_short | An Energy Autonomous 400 MHz Active Wireless SAW Temperature Sensor Powered by Vibration Energy Harvesting |
| title_sort | energy autonomous 400 mhz active wireless saw temperature sensor powered by vibration energy harvesting |
| topic | Energy autonomous Power management SAW SAW oscillator Temperature sensor Wireless Low power Vibration energy harvest |
| url | https://hdl.handle.net/10356/82823 http://hdl.handle.net/10220/40333 |
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