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Highly sensitive and low power injection-locked FSK receiver for short-range wireless applications

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3 Author(s)
Rong-Fu Ye ; Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan ; Tzyy-Sheng Horng ; Jian-Ming Wu

A highly sensitive frequency-shift keying (FSK) receiver with low power consumption that is based on the injection-locking technique is proposed for short-range wireless (SRW) applications. The proposed FSK receiver comprising a sub-mW low-noise amplifier (LNA), a trifilar transformer splitter, and an injection-locked self-oscillating mixer (SOM) is fabricated using 90 nm CMOS technology. Measurement results indicate a sensitivity of -81 dBm with a power consumption of 1.8 mW when a Bluetooth Gaussian frequency-shift keying (GFSK) modulated signal with a data rate of 1 Mb/s is received.

Published in:

Radio Frequency Integrated Circuits Symposium (RFIC), 2012 IEEE

Date of Conference:

17-19 June 2012