학술논문
A 420µW, 4 GHz approximate zero IF FM-UWB receiver for short-range communications
Document Type
Conference
Source
2016 IEEE Radio Frequency Integrated Circuits Symposium (RFIC) Radio Frequency Integrated Circuits Symposium (RFIC), 2016 IEEE. :218-221 May, 2016
Subject
Language
ISSN
2375-0995
Abstract
A low-power FM-UWB receiver intended for short range communications in wireless sensor networks is presented in this paper. It utilizes an “approximate zero IF” architecture which combines a free-running ring oscillator as the RF LO with a modified delay-line demodulator. The main benefit comes from implementing the gain stages and the demodulator at the IF instead of RF, allowing significant power savings. Integrated in a 65nm CMOS technology, the whole receiver chain consumes 420µW from a 1V supply while achieving −68dBm sensitivity at the data rate of 100 kb/s.