A 5-pJ/Bit OOK Transmitter Using MEMS-Based RF Oscillator for IoT Application in 180-nm CMOS

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A 5-pJ/Bit OOK Transmitter Using MEMS-Based RF Oscillator for IoT Application in 180-nm CMOS
Title:
A 5-pJ/Bit OOK Transmitter Using MEMS-Based RF Oscillator for IoT Application in 180-nm CMOS
Other Titles:
IEEE Microwave and Wireless Components Letters
Publication Date:
24 August 2021
Citation:
Tao, J., Wang, N., Ng, E. J., Zhu, Y., & Heng, C.-H. (2021). A 5-pJ/Bit OOK Transmitter Using MEMS-Based RF Oscillator for IoT Application in 180-nm CMOS. IEEE Microwave and Wireless Components Letters, 31(10), 1158–1161. https://doi.org/10.1109/lmwc.2021.3107276
Abstract:
An 800-MHz OOK transmitter for short-range Internet-of-Things (IoT) applications is presented in this letter. The OOK transmitter utilizes a microelectromechanical system (MEMS)-based RF oscillator for carrier frequency generation, leading to a hardware- and power-efficient architecture. The transmitter is implemented in a 180-nm CMOS process and delivers −12.4-dBm output power. The power consumption of the MEMS oscillator is only 0.24-mW with 126.3-dBc/Hz phase noise at 100-kHz offset and a figure-of-merit (FoM) of 210.5 dB due to the optimized high- Q aluminum nitride (AlN) piezoelectric MEMS resonator. The transmitter can provide a 120-Mb/s data rate of OOK modulation with an energy efficiency of 5 pJ/bit by directly switching ON/OFF the power amplifier (PA). The 175-ns startup time of the MEMS-based oscillator can support very heavy duty-cycle transmitter operation, leading to ultralow average power consumption of 50 nW.
License type:
Publisher Copyright
Funding Info:
This research / project is supported by the Agency for Science, Technology and Research - Nanosystems at the Edge
Grant Reference no. : A18A4b0055
Description:
© 2022 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.
ISSN:
1558-1764
1531-1309
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