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Low-power wake-up receiver with subthreshold CMOS circuits for wireless sensor networks
| Title: | Low-power wake-up receiver with subthreshold CMOS circuits for wireless sensor networks |
| Authors: | Takahagi, Kazuhiro Browse this author | | Matsushita, Hiromichi Browse this author | | Iida, Tomoki Browse this author | | Ikebe, Masayuki Browse this author →KAKEN DB | | Amemiya, Yoshihito Browse this author →KAKEN DB | | Sano, Eiichi Browse this author →KAKEN DB |
| Keywords: | Wake-up receiver | | Envelope detector | | High-gain amplifier | | Clock and data recovery | | Subthreshold operation |
| Issue Date: | May-2013 |
| Publisher: | SPRINGER |
| Journal Title: | ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING |
| Volume: | 75 |
| Issue: | 2 |
| Start Page: | 199 |
| End Page: | 205 |
| Publisher DOI: | 10.1007/s10470-012-9929-1 |
| Abstract: | We developed a wake-up receiver comprised of subthreshold CMOS circuits. The proposed receiver includes an envelope detector, a high-gain baseband amplifier, a clock and data recovery (CDR) circuit, and a wake-up signal recognition circuit. The drain nonlinearity in the subthreshold region effectively detects the baseband signal with a microwave carrier. The offset cancellation method with a biasing circuit operated by the subthreshold produces a high gain of more than 100 dB for the baseband amplifier. A pulse-width modulation (PWM) CDR drastically reduces the power consumption of the receiver. A 2.4-GHz detector, a high-gain amplifier and a PWM clock recovery circuit were designed and fabricated with 0.18-mu m CMOS process with one poly and six metal layers. The fabricated detector and high-gain amplifier achieved a sensitivity of -47.2 dBm while consuming only 6.8 mu W from a 1.5 V supply. The fabricated clock recovery circuit operated successfully up to 500 kbps. |
| Rights: | The final publication is available at link.springer.com |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/55277 |
| Appears in Collections: | 量子集積エレクトロニクス研究センター (Research Center for Integrated Quantum Electronics) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 佐野 栄一
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