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

SHI Weiwei; PENG Panfeng; CHOY Chiu-Sing

doi:10.1049/cje.2017.04.006

Volume 26 Issue 4

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SHI Weiwei, PENG Panfeng, CHOY Chiu-Sing, “A 90nm Passive RFID Tag's Custom Baseband Processor for Subthreshold Operation Below 0.3V,” Chinese Journal of Electronics, vol. 26, no. 4, pp. 720-724, 2017, 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,” Chinese Journal of Electronics, vol. 26, no. 4, pp. 720-724, 2017, doi: 10.1049/cje.2017.04.006

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

doi: 10.1049/cje.2017.04.006

1.
Shenzhen University, Shenzhen 518000, China;
2.
Shenzhen Key Laboratory of Advanced Communication and Information Processing, Shenzhen 518000, China;
3.
Chinese University of Hong Kong, Shatin, Hong Kong SAR, China

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).

Received Date: 2016-05-23
Rev Recd Date: 2017-01-06
Publish Date: 2017-07-10

Abstract

Abstract

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.
- Subthreshold,
- RFID,
- Custom logic,
- Low power

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References(11)

References

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