A 2 Gb/s 5.6 mW Digital LOS/NLOS Equalizer for the 60 GHz Band Ji-Hoon Park,S t u d e n tM e m b e r ,I E E E

Abstract

T h ew i d eu n l i c e n s e db a n d width of a 60 GHz channel presents an attractive opport unity for high data rate and low power personal area networks (PANs). The use of single-carrier modulation can yield energy-ef ficient transmitter and receiver implementation, but equalization of the long channel response in non-line-of-sight (NLOS) conditions presents a signi ficant chal- lenge. A digital equalizer for 60 GHz channels has been designed for both line of sight (LOS) and NLOS channel conditions to meet the IEEE WPAN standard. Power consumption is minimized by using a parallelized distribute d arithmetic (DA) architecture. A2m m 2m mt e s tc h i pi n6 5 n mC M O Si m p l e m e n t sa6t a p feedforward and 32 tap feedback equalizer that can be con figured to cancel the response of up to 72 symbols, and consumes 5.6 mW at 2 Gb/s throughput. The chip als o includes a channel estimator based on a Golay correlator for setting the equalizer coef ficients and estimating frequen cy and timing error.