Reduced-power millimeter-wave reconfigurable systems

In this paper, we present a millimeter wave system that combines several innovations to enable practical use of the yet unharnessed capacity of the millimeter spectrum for high speed and secure wireless connectivity. Essential to its realization is a novel ultra-wideband array that incorporates suitable balanced feeds. Also, unique bandwidth reconfiguration technique is presented via simple tuning of the balanced feed behind antenna elements to null sensitive RF bands. Finally, a broadband beamforming is proposed with reduced power requirements using a much smaller number of analog-to-digital converters and on-site code division multiplexing technique.