A 217µW −82dBm IEEE 802.11 Wi-Fi LP-WUR using a 3rd- Harmonic Passive Mixer

A 40nm CMOS IEEE 802.11 Wi-Fi LP-WUR receiver is presented. The receiver demodulates OOK messages generated by an 802.11 OFDM Wi-Fi transmitter operating at 5.8GHz. The receiver improves sensitivity by allocating the image-less single sideband signal above the flicker noise floor. The 3
^rd
harmonic down-conversion receiver reduces active power consumption, while rejecting unwanted harmonic components. The receiver achieves a sensitivity of -82dBm while consuming 217μW at a BER of 10
^-3
and data-rate of 62.5kb/s.