SHI Weiwei, PENG Panfeng, CHOY Chiu-Sing. A 90nm Passive RFID Tag's Custom Baseband Processor for Subthreshold Operation Below 0.3V[J]. Chinese Journal of Electronics, 2017, 26(4): 720-724. DOI: 10.1049/cje.2017.04.006
Citation: SHI Weiwei, PENG Panfeng, CHOY Chiu-Sing. A 90nm Passive RFID Tag's Custom Baseband Processor for Subthreshold Operation Below 0.3V[J]. Chinese Journal of Electronics, 2017, 26(4): 720-724. DOI: 10.1049/cje.2017.04.006

A 90nm Passive RFID Tag's Custom Baseband Processor for Subthreshold Operation Below 0.3V

Funds: This work is supported by Natural Science Foundation of Guangdong Province, China (No.2015A030310498), the basic research foundation of Shenzhen Commission of Science, Technology & Innovation, China (No.JCYJ20140418091413534), the Youth Scholar Innovation Fund of Guangdong Institutes (No.2015KQNCX140), and the Startup Project for Shenzhen High-level Oversea Experts/Scholars (No.827-000110).
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  • Received Date: May 22, 2016
  • Revised Date: January 05, 2017
  • Published Date: July 09, 2017
  • In the design of passive Radio frequency (RF) tags' baseband processor, subthreshold timing and wide-range-Process, voltage and temperature (PVT) variation problems are the bottlenecks to extend the tag's working range. A sophisticated processor is presented based on the EPC and ISO protocol. Power-aware ideas are applied to the entire processor, including data link portions. Innovatively, a novel custom ratioed logic style is adopted in critical logic paths to fundamentally speed up the circuit operations at ultra-low-voltage. The proposed baseband processor was fabricated in 90nm CMOS, another baseband processor design by regular standard-cell-based design flow was also fabricated for comparison. In measurement the proposed design indicates good robustness in wide-range supply and frequency variation and much more competent for subthreshold operation. It can operate at minimum 0.28V supply with power consumption of 129nW.
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    1. Zhang, Y., Han, J., Zhang, H. High-Robust Sub-threshold Standard Cells Using Schmitt Trigger | [基于施密特触发的高鲁棒性亚阈值标准单元]. Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology, 2021, 43(6): 1550-1558. DOI:10.11999/JEIT210001
    2. Deming, W., Jianguo, H., Jianhui, W. et al. VLSI implementation of area and power efficient digital control circuit for HF RFID tag chip. Chinese Journal of Electronics, 2020, 29(1): 82-88. DOI:10.1049/cje.2019.10.003
    3. Shi, W., Pan, A., Yu, S. et al. A subthreshold baseband processor core design with custom modules and cells for passive RFID tags. IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, 2018, 37(1): 159-167. DOI:10.1109/TCAD.2017.2764073

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