Title :
Low-Power CMOS Super-Regenerative Receiver With a Digitally Self-Quenching Loop
Author :
Kim, Kihyun ; Yun, Sumin ; Lee, Sungho ; Nam, Sangwook
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Seoul Nat. Univ., Seoul, South Korea
Abstract :
A 500 MHz super-regenerative receiver (SRR) with a digitally self-quenching loop (DSQL) is designed for low-power/high-data-rate applications. The DSQL replaces the envelope detector used in a conventional SRR and minimizes the overall power consumption by generating a self-quench signal digitally for a super-regenerative oscillator. The receiver is fabricated using a 0.13 μm CMOS process. The chip size is 0.7 mm2 and the minimum energy usage is 0.09 nJ/b with a supply voltage of 1 V at a data rate of 10 Mbps. The measured sensitivity is - 76 dBm.
Keywords :
CMOS digital integrated circuits; UHF detectors; UHF integrated circuits; UHF oscillators; low-power electronics; radio receivers; CMOS process; DSQL; SRR; bit rate 10 Mbit/s; digitally signal self-quenching loop; envelope detector; frequency 500 MHz; low-power CMOS superregenerative receiver; low-power-high-data-rate applications; power consumption; size 0.13 mum; superregenerative oscillator; voltage 1 V; CMOS integrated circuits; Endoscopes; Oscillators; Power demand; Radiation detectors; Receivers; Wireless sensor networks; Capsule endoscopy; digital counter; on-off keying (OOK) modulation; self-quench; super regenerative;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2012.2211581
