TY - GEN
T1 - A 5.8 GHz 1.77mW AFSK-OFDM CMOS Backscatter Transmitter for Low Power IoT Applications
AU - Tang, A.
AU - Kim, Y.
AU - Kim, Y.
AU - Virbila, G.
AU - Chang, M. C.Frank
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/8/17
Y1 - 2018/8/17
N2 - This paper presents an AFSK-OFDM (amplitude frequency shift keying-orthogonal frequency division multiplexing) based backscatter transmitter for Internet-of-Things (IoT) applications. The transmitter uses an array of 4 low-power direct digital frequency synthesizers (DDFSs) and DACs to transmit data using both frequency and amplitude symbols on 4 different OFDM subcarriers. The backscatter modulator is demonstrated within a 5.8 GHz wireless link using an 8-symbol OFDM library at a range of 2.7m and shown to consume 1.77 mW when operated at a symbol rate of 4MS/s (corresponds to 12 Mb/s). The modulator chip occupies 0.45mm2of silicon area.
AB - This paper presents an AFSK-OFDM (amplitude frequency shift keying-orthogonal frequency division multiplexing) based backscatter transmitter for Internet-of-Things (IoT) applications. The transmitter uses an array of 4 low-power direct digital frequency synthesizers (DDFSs) and DACs to transmit data using both frequency and amplitude symbols on 4 different OFDM subcarriers. The backscatter modulator is demonstrated within a 5.8 GHz wireless link using an 8-symbol OFDM library at a range of 2.7m and shown to consume 1.77 mW when operated at a symbol rate of 4MS/s (corresponds to 12 Mb/s). The modulator chip occupies 0.45mm2of silicon area.
KW - ASK
KW - Backscatter modulator
KW - OFDM
UR - http://www.scopus.com/inward/record.url?scp=85053048195&partnerID=8YFLogxK
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U2 - 10.1109/MWSYM.2018.8439341
DO - 10.1109/MWSYM.2018.8439341
M3 - Conference contribution
AN - SCOPUS:85053048195
SN - 9781538650677
T3 - IEEE MTT-S International Microwave Symposium Digest
SP - 259
EP - 261
BT - Proceedings of the 2018 IEEE/MTT-S International Microwave Symposium, IMS 2018
T2 - 2018 IEEE/MTT-S International Microwave Symposium, IMS 2018
Y2 - 10 June 2018 through 15 June 2018
ER -