A 107 pJ/b TX 260 pJ/b RX Ultralow-Power MEMS-Based Transceiver With Wake-Up in ISM-Bands for IoT Applications

Tang, K; Yang, C; Guo, Y; Wang, N; Zhu, Y; Zhang, Y; Ng, EJ; Lee, JEY; Fang, Z; Wang, W; Jiang, H; Heng, CH; Zheng, Y

A 107 pJ/b TX 260 pJ/b RX Ultralow-Power MEMS-Based Transceiver With Wake-Up in ISM-Bands for IoT Applications

Tang, K Yang, C Guo, Y Wang, N Zhu, Y Zhang, Y Ng, EJ Lee, JEY Fang, Z Wang, W Jiang, H Heng, CH Zheng, Y

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Publisher:: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Publication Type:: Journal Article
Citation:: IEEE Journal of Solid-State Circuits, 2023, 58, (5), pp. 1337-1349
Issue Date:: 2023-05-01

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Field	Value	Language
dc.contributor.author	Tang, K
dc.contributor.author	Yang, C
dc.contributor.author	Guo, Y
dc.contributor.author	Wang, N
dc.contributor.author	Zhu, Y
dc.contributor.author	Zhang, Y
dc.contributor.author	Ng, EJ
dc.contributor.author	Lee, JEY
dc.contributor.author	Fang, Z
dc.contributor.author	Wang, W
dc.contributor.author	Jiang, H
dc.contributor.author	Heng, CH
dc.contributor.author	Zheng, Y
dc.date.accessioned	2024-02-20T06:21:07Z
dc.date.available	2024-02-20T06:21:07Z
dc.date.issued	2023-05-01
dc.identifier.citation	IEEE Journal of Solid-State Circuits, 2023, 58, (5), pp. 1337-1349
dc.identifier.issn	0018-9200
dc.identifier.issn	1558-173X
dc.identifier.uri	http://hdl.handle.net/10453/175763
dc.description.abstract	This article presents an ultralow-power (ULP) microelectromechanical system (MEMS)-based phase-tracking frequency shift keying (FSK) transceiver (TRX) with an embedded envelop detector-based on-off keying (OOK) wake-up receiver (WuRX). The system supports a shared antenna interface of FSK-matched filter for TRX and a matching network for the FSK receiver (RX) and OOK WuRX. To consume less power, the transmitter employs an adaptive fast switching (AFS) technique for FSK/OOK modulator and uses a high-Q MEMS resonator to get frequency stability. In addition, for better interference filtering, the MEMS-based modulator is shared to provide LO in FSK RX as it owns inherent sidelobe suppression. To support higher blocker/interference rejection with relatively low power, MEMS-based FSK-matched filter plus matching network with current-reuse LNA is co-designed to provide additional passive gain. Fabricated in 65-nm CMOS process, the transmitter (TX) generates FSK signals of-11.2 dBm output power at ISM-915 MHz and the data rate is up to 6 Mb/s. At 1 MHz offset, the measured phase noise (PN) is-140.2 and-139.3 dBc/Hz at 926.3 and 932.4 MHz, respectively. By sharing the modulator, the RX exhibits-36.2 dB in-band signal-to-interference ratio (SIR),-77.5 dBm sensitivity at bit error rate (BER) of 10-3 working under 2 Mb/s data rate. The TX, FSK RX, and WuRX consume 642 μ W @6 Mb/s, 520 μ W @2 Mb/s, and 86 μ W @200 kb/s, leading to the energy efficiency of 107, 260, and 430 pJ/b, respectively. The proposed TX achieves over 1.5× better energy efficiency than state-of-the-art results and the FSK RX attains the best FoM with the sensitivity of-77.5 dBm, which are well suited for energy-efficient pico-IoT applications.
dc.language	English
dc.publisher	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
dc.relation.ispartof	IEEE Journal of Solid-State Circuits
dc.relation.isbasedon	10.1109/JSSC.2022.3211907
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0204 Condensed Matter Physics, 0906 Electrical and Electronic Engineering, 1099 Other Technology
dc.subject.classification	Electrical & Electronic Engineering
dc.subject.classification	4009 Electronics, sensors and digital hardware
dc.title	A 107 pJ/b TX 260 pJ/b RX Ultralow-Power MEMS-Based Transceiver With Wake-Up in ISM-Bands for IoT Applications
dc.type	Journal Article
utslib.citation.volume	58
utslib.for	0204 Condensed Matter Physics
utslib.for	0906 Electrical and Electronic Engineering
utslib.for	1099 Other Technology
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
utslib.copyright.status	open_access	*
dc.date.updated	2024-02-20T06:21:06Z
pubs.issue	5
pubs.publication-status	Published
pubs.volume	58
utslib.citation.issue	5

Abstract:

This article presents an ultralow-power (ULP) microelectromechanical system (MEMS)-based phase-tracking frequency shift keying (FSK) transceiver (TRX) with an embedded envelop detector-based on-off keying (OOK) wake-up receiver (WuRX). The system supports a shared antenna interface of FSK-matched filter for TRX and a matching network for the FSK receiver (RX) and OOK WuRX. To consume less power, the transmitter employs an adaptive fast switching (AFS) technique for FSK/OOK modulator and uses a high-Q MEMS resonator to get frequency stability. In addition, for better interference filtering, the MEMS-based modulator is shared to provide LO in FSK RX as it owns inherent sidelobe suppression. To support higher blocker/interference rejection with relatively low power, MEMS-based FSK-matched filter plus matching network with current-reuse LNA is co-designed to provide additional passive gain. Fabricated in 65-nm CMOS process, the transmitter (TX) generates FSK signals of-11.2 dBm output power at ISM-915 MHz and the data rate is up to 6 Mb/s. At 1 MHz offset, the measured phase noise (PN) is-140.2 and-139.3 dBc/Hz at 926.3 and 932.4 MHz, respectively. By sharing the modulator, the RX exhibits-36.2 dB in-band signal-to-interference ratio (SIR),-77.5 dBm sensitivity at bit error rate (BER) of 10-3 working under 2 Mb/s data rate. The TX, FSK RX, and WuRX consume 642 μ W @6 Mb/s, 520 μ W @2 Mb/s, and 86 μ W @200 kb/s, leading to the energy efficiency of 107, 260, and 430 pJ/b, respectively. The proposed TX achieves over 1.5× better energy efficiency than state-of-the-art results and the FSK RX attains the best FoM with the sensitivity of-77.5 dBm, which are well suited for energy-efficient pico-IoT applications.

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