In-Band Full-Duplex Phased Array Circuits and Systems

In-band full-duplex (IBFD) technology can lead to enhanced spectral efficiency for future wireless networks, such as sixth-generation (6G) and beyond, and/or could enable capabilities and applications that were previously considered impossible, such as IBFD with phased array systems. This workshop presentation will discuss the various approaches that can be taken to suppress the inherent self-interference that is generated in IBFD phased array systems, and will present both static and adaptive techniques that span across the propagation, analog and digital domains. The talk will contain details and measured results that encompass unique array topologies, RF cancellation and other isolation methods as well as advances in adaptive beamforming and digital filtering. Throughout the presentation, state-of-the-art IBFD phased array circuits and systems that utilize these technologies will be provided as practical examples for various applications.