Multiunit Phased Array System for Flexible Workspace

Abstract

Although smaller and thinner ultrasonic mid-air haptic phased arrays are important to business-to-consumer applications, large-scale phased arrays are exploring the possibility of powerful mid-air haptics. For research applications to ultimately “hack” the entire ultrasonic field of a room or public environment, large array operations are inevitable. In this chapter, after the advantages and disadvantages of employing large-scale arrays are summarized, we present an implementation of a scalable phased array unit that can be installed in a distributed fashion and some of its potential applications.