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 …

A transceiver front end including a dual-injection path self-interference (SI) cancellation
architecture is proposed for use in wideband full-duplex networks. The SI cancellation …

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 …

An active transmitter (TX) cancellation scheme enabling integration of the antenna interface
for frequency division duplex systems is presented. A replica of the TX current is synthesized …

This paper reports the first demonstration of a magnet-free, high performance
microelectromechanical system (MEMS) based circulator. An innovative circuit based on the …

An integrated reconfigurable CMOS quasi-circulator operating at 2.4 GHz is presented. A
passive structure delivers transmit power amplifier (PA) output signal to the differential low …

A full-duplex transceiver with on-chip self-interference-cancellation (SIC) is presented. The
achieved SIC is 110 dB, and it is realized in three stages: RF front-end hybrid, baseband …

A lossy transmission has negative effect on the overall performance and efficiency of base
station subsystems. One key feature of 5G technologies is improved efficiency compared to …

This paper describes a 6-bit programmable True Time Delay (TTD) system for 1-12GHz
applications. The minimum delay resolution is 20ps, and maximum delay is 1.35 ns, thus …

Demand for mobile data traffic is projected to exceed 30 exabytes per month in 2020,
representing an over 100x increase since 2010. Prior generations of cellular deployments …