In-band full-duplex (IBFD) technology can enable unique system capabilities and network
architectures by allowing devices to transmit and receive on the same frequency at the same …

In this article, we provide a comprehensive review of past and present efforts in the field of
microwave nonreciprocity with an emphasis on the most commonly used nonreciprocal …

In general, reciprocity requires that signals travel in the same manner in both forward and
reverse directions. It governs the behaviour of the majority of electronic circuits and …

In this paper, we demonstrate, for the first time, an isolating bandpass filter with low-loss
forward transmission and high reverse isolation by modulating its constituent resonators. To …

With its ability to communicate long distances, LoRa promises city-scale IoT deployments for
smart city applications. This long-range, however, also increases contention as many …

Due to the practical challenges in the deployment of existing half-duplex systems, the
promise of ubiquitous backscatter connectivity has eluded us. To address this, we design the …

N-path filters show promise to realize tunable, high-quality on-chip filters. However, N-path
filters remain restricted to sub-2 GHz operation, low frequency selectivity, and dBm power …

Metasurfaces have provided a new paradigm to control electromagnetic waves by
manipulating the spatially varying distribution of subwavelength artificial structures across …

We present a radio frequency self-interference (SI) canceller chip for low-power wide area
network (LPWAN) basestations. To enhance the cancellation capability without …

Recently, CMOS non-magnetic circulators have been demonstrated based on switch-based
spatio-temporal conductivity modulation, but these initial demonstrations remain limited in …