Plenary talk 1: Ultra-wideband arrays with low cost beamforming back-ends

Future communication links will require higher data rates, multiple beams, and higher transmit/receive gains, in addition to smaller weight, cost, and power. With the growing interest for reduced size platforms and the requirement for ultra-wideband (UWB) performance to address multifunctionality, there is a strong need for UWB apertures to enable increased spectral efficiency, multifunctionality and security, there is a strong need for small UWB apertures, particularly at millimeter wave frequencies. Such apertures enable increased spectral efficiency, spatial multiplexing, concurrent beams at different frequencies. Furthermore, UWB arrays offer high data rates and allow for secure communication using long codes that spread across the bandwidth. An added feature will be the capability for simultaneous transmit and receive (STAR) applications.