A Fully-Reflective Wi-Fi-Compatible Backscatter Communication System With Retro-

Abstract

This article presents an integrated circuit (IC) designed to enable low-power long-range backscatter commu- nication with commodity Wi-Fi transceivers. The proposed chip endeavors to improve the most critical and difficult specification in Wi-Fi backscatter systems: range. It does so through two pro- posed techniques: 1) a fully-reflective single-antenna backscatter solution, whereby the termination of a power combiner always has a reflection coefficient near 1 to ensure high reflected power whi