Increased Isolation in Single and Multi-Antenna Full Duplex Wideband Radios

To meet the ever-increasing consumer needs, new wireless applications including IOT are being developed at a tremendous pace. However, only a very small percentage of spectrum is available to accommodate these applications. Specifically, wireless applications targeting sub-6 GHz frequency band require efficient hardware infrastructures and protocols to operate in the highly congested spectrum, to avoid signal fratricide. Consequently, there is a strong need to develop spectral efficient full duplex communication techniques [1] .