Title :
A 0.3 – 3GHz reconfigurable digital transmitter with multi-bit envelope ΔΣ modulator using phase modulated carrier clock for wireless sensor networks
Author :
Hori, Shinichi ; Kunihiro, Kazuaki ; Hayakawa, Makoto ; Fukaishi, Muneo
Author_Institution :
NEC Corp., Kawasaki, Japan
Abstract :
A reconfigurable digital transmitter for wireless sensors using phase-modulated-carrier-clocking multi-bit envelope ΔΣ modulation is presented. The prototype IC designed in 90 nm CMOS process covers UHF, 2.4GHz ISM and 3GPP frequency bands up to 3 GHz in conformity with IEEE 802.11g, W-CDMA and LTE in 5 MHz-mode. The IC dissipates 10 mW for 0.3 GHz and 8.0 mW for 1.95 GHz WCDMA signal, and occupies 0.26 mm2.
Keywords :
CMOS integrated circuits; UHF integrated circuits; clocks; delta-sigma modulation; phase modulation; radio transmitters; wireless sensor networks; 3GPP frequency bands; CMOS process; IC; IEEE 802.11g; ISM frequency bands; LTE; W-CDMA; frequency 0.3 GHz to 3 GHz; frequency 2.4 GHz; multibit envelope ΔΣ modulator; phase-modulated-carrier-clocking delta-sigma modulation; power 10 mW; power 8.0 mW; reconfigurable digital transmitter; size 90 nm; wireless sensor networks; Modulation; Multiaccess communication; Quantization; Radio transmitters; Spread spectrum communication; Switches; Wireless sensor networks; CMOS; Delta-sigma modulation; radio transmitters; switching amplifier; wireless LAN; wireless sensor network;
Conference_Titel :
Radio Frequency Integrated Circuits Symposium (RFIC), 2012 IEEE
Conference_Location :
Montreal, QC
Print_ISBN :
978-1-4673-0413-9
Electronic_ISBN :
1529-2517
DOI :
10.1109/RFIC.2012.6242242
