Wideband wide-scan millimeter-wave phased arrays for enhanced security/privacy and performance in 5G mobile wireless

Millimeter wave (mmWave) phased arrays have been demonstrated recently as the technology that enables 5G mobile's grand vision of high data rate and low latency, as well as provides a physical layer security stemming from mmWave's high propagation loss in the air interface. This paper explores the fundamental issues in both capacity and security/privacy of 5G wireless, and proposes a solution to enhance its capacity and cyberspace security/privacy by employing wideband wide-scan mmWave phased arrays. Implementation on small mobile platforms such as smartphones and tablets is discussed.