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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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