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 …

Given the plethora of low GHz radio standards and frequency bands, multi-band software
defined radio receivers are coming up. Such digital intensive radios are implemented in …

A fully integrated technique for wideband cancellation of transmitter (TX) self-interference
(SI) in the RF domain is proposed for multiband frequency-division duplexing (FDD) and full …

Recently, we demonstrated the first CMOS nonmagnetic nonreciprocal passive circulator
based on N-path filters that uses time variance to break reciprocity. Here, the analysis of …

Wideband self-interference cancellation (SIC) in full-duplex (FD) radios requires the
achievement of large delays to accurately emulate the SI channel. However, compact, power …

Previously, we presented a non-magnetic, non-reciprocal N-path-filter-based circulator-
receiver (circ.-RX) architecture for single-frequency full-duplex (SF-FD) wireless, which …

Full-duplex (FD) wireless can significantly enhance spectrum efficiency but requires
tremendous amount of self-interference (SI) cancellation. Recent advances in the RFIC …

The delay-bandwidth limit implies a stringent trade-off between the time delay, bandwidth,
and propagation distance of an electromagnetic signal. Here, we show that temporal …

One of the earliest references to reciprocity as an underlying symmetry within a system dates
back to the 1828 work of Green in electrostatics, relating the interchanging electric potential …

The relentless demand for data in our society has driven the continuous evolution of
wireless technologies to enhance network capacity. While current deployments of 5G have …