Title :
44 pJ/bit energy-efficiency K-band OOK transmitter for wireless sensor networks
Author :
Kuan-Hsiu Chien ; Hwann-Kaeo Chiou
Author_Institution :
Dept. of Electr. Eng., Nat. Central Univ., Jhongli, Taiwan
Abstract :
A high energy-efficiency K-band on-off keying (OOK) transmitter in tsmc™ 90 nm CMOS technology is presented. The transmitter consists of a wideband voltage control oscillator (VCO), a frequency doubler and a switch-type power amplifier with a chip area of 0.6 × 0.92 mm2. The VCO adopts a parasitic capacitance reduction technique to enhance the tuning range to 20.5%. The designed transmitter achieves an output power of 3 dBm with a 500 Mbit/s data rate from 19 to 23.1 GHz at 22.3 mW power consumption. The correspondent energy-efficiency is 44 pJ/bit.
Keywords :
CMOS integrated circuits; MMIC; amplitude shift keying; energy conservation; radio transmitters; wireless sensor networks; CMOS technology; bit rate 500 Mbit/s; energy-efficiency K-band OOK transmitter; frequency 19 GHz to 23.1 GHz; frequency doubler; on-off keying; parasitic capacitance reduction technique; power 22.3 mW; power consumption; size 90 nm; switch-type PA; switch-type power amplifier; wideband VCO; wideband voltage control oscillator; wireless sensor networks;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2015.0581
