Open Access44 pJ/bit energy‐efficiency K‐band OOK transmitter for wireless sensor networks
Author(s) -
Chien KuanHsiu,
Chiou HwannKaeo
Publication year - 2015
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2015.0581
Subject(s) - transmitter , voltage controlled oscillator , electrical engineering , cmos , amplifier , wideband , electronic engineering , engineering , voltage , channel (broadcasting)
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 mm 2 . 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.