Abstract
In recent decades, microwave photonic channelization has developed
rapidly. Characterized by low loss, high versatility, large
instantaneous bandwidth, and immunity to electromagnetic interference,
microwave photonic channelization techniques coincides with the
requirements of modern radar and electronic warfare for receivers. The
advanced microresonator-based optical frequency combs are promising
platforms for the research of the photonic channelized receivers, which
take full advantage of multicarrier and large bandwidth, and accelerate
the integration process of microwave photonic channelized receivers. In
this paper, we review the research progress and trends in microwave
photonic channelization, focusing on schemes that utilize integrated
microcombs. Finally, we discuss the potentials of microcomb-based RF
channelization, as well as the challenges and limitations, and provide
routes and perspectives for future developments in the context of
on-chip silicon-based photonics.Â