In-band full-duplex technology: Techniques and systems survey

KE Kolodziej, BT Perry, JS Herd - IEEE Transactions on …, 2019‏ - ieeexplore.ieee.org
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 …

Microwave nonreciprocity

A Kord, DL Sounas, A Alu - Proceedings of the IEEE, 2020‏ - ieeexplore.ieee.org
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 …

Full-duplex nonreciprocal beam steering by time-modulated phase-gradient metasurfaces

S Taravati, GV Eleftheriades - Physical Review Applied, 2020‏ - APS
We present the concept, theoretical model, and experimental implementation of a full-duplex
nonreciprocal-beam-steering transmissive phase-gradient metasurface. Such a metasurface …

Joint spatial division and multiplexing for FDD in intelligent reflecting surface-assisted massive MIMO systems

A Papazafeiropoulos, P Kourtessis… - IEEE Transactions …, 2022‏ - ieeexplore.ieee.org
Channel reciprocity, assumed in fifth-generation (5G) systems such as massive multiple-
input-multiple-output (mMIMO), appears to be questioned in practice by recent studies on …

Nonreciprocal components based on switched transmission lines

A Nagulu, T Dinc, Z **ao, M Tymchenko… - IEEE Transactions …, 2018‏ - ieeexplore.ieee.org
Nonreciprocal components, such as isolators and circulators, are critical to wireless
communication and radar applications. Traditionally, nonreciprocal components have been …

Doubling Down on Wireless Capacity: A Review of Integrated Circuits, Systems, and Networks for Full Duplex

A Nagulu, N Reiskarimian, T Chen… - Proceedings of the …, 2024‏ - ieeexplore.ieee.org
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 …

Power-efficient design techniques for mm-wave hybrid/digital FDD/full-duplex MIMO transceivers

S Mondal, J Paramesh - IEEE Journal of Solid-State Circuits, 2020‏ - ieeexplore.ieee.org
This article describes system and circuit design techniques to enhance power efficiency and
incorporate new features in millimeter-wave multi-input-multi-output (MIMO) transceivers …

Fully-integrated non-magnetic 180nm SOI circulator with> 1W P1dB,>+ 50dBm IIP3 and high isolation across 1.85 VSWR

A Nagulu, A Alù… - 2018 IEEE Radio …, 2018‏ - ieeexplore.ieee.org
There has been recent progress on CMOS non-magnetic circulators based on switch-based
spatio-temporal conductivity modulation, but these initial demonstrations remain limited in …

Quasielectrostatic wave propagation beyond the delay-bandwidth limit in switched networks

M Tymchenko, D Sounas, A Nagulu, H Krishnaswamy… - Physical Review X, 2019‏ - APS
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 …

A millimeter-wave polarization-division-duplex transceiver front-end with an on-chip multifeed self-interference-canceling antenna and an all-passive reconfigurable …

T Chi, JS Park, S Li, H Wang - IEEE Journal of Solid-State …, 2018‏ - ieeexplore.ieee.org
A millimeter-wave (mm-wave) polarization-division-duplex (PDD) transceiver (TRX) front-
end with an on-chip multifeed self-interference-canceling (SIC) antenna and an all-passive …