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 …

A Third-Order Quasi-Elliptic N-Path Filter With Enhanced Linearity Through Clock Boosting

A Nagulu, Y Zhuang, M Yuan… - IEEE Journal of Solid …, 2023 - ieeexplore.ieee.org
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 …

A hierarchical self-interference canceller for full-duplex LPWAN applications achieving 52–70-dB RF cancellation

H Abolmagd, R Subbaraman… - IEEE Journal of Solid …, 2022 - ieeexplore.ieee.org
We present a radio frequency self-interference (SI) canceller chip for low-power wide area
network (LPWAN) basestations. To enhance the cancellation capability without …

A sub-THz full-duplex phased-array transceiver with self-interference cancellation and LO feedthrough suppression

C Wang, I Abdo, C Liu, C da Gomez… - IEEE Journal of Solid …, 2024 - ieeexplore.ieee.org
A sub-THz (88–136 GHz) full-duplex (FD) phased-array transceiver (TRX) integrating an RF
self-interference (SI) canceller with differential feeding FD antennas is presented in this …

Multi-mode spatial signal processor with rainbow-like fast beam training and wideband communications using true-time-delay arrays

CC Lin, C Puglisi, V Boljanovic, H Yan… - IEEE Journal of Solid …, 2022 - ieeexplore.ieee.org
Initial access in millimeter-wave (mmW) wireless is critical toward successful realization of
the fifth-generation (5G) wireless networks and beyond. Limited bandwidth in existing …

Wideband beamforming with rainbow beam training using reconfigurable true-time-delay arrays for millimeter-wave wireless [feature]

CC Lin, V Boljanovic, H Yan, E Ghaderi… - IEEE circuits and …, 2022 - ieeexplore.ieee.org
The decadal research in integrated true-time-delay arrays have seen organic growth
enabling realization of wideband beamformers for large arrays with wide aperture widths …

mmflexible: Flexible directional frequency multiplexing for multi-user mmwave networks

IK Jain, RR Vennam, R Subbaraman… - IEEE INFOCOM 2023 …, 2023 - ieeexplore.ieee.org
Modern mmWave systems have limited scalability due to inflexibility in performing frequency
multiplexing. All the frequency components in the signal are beamformed to one direction …

Varactor Based Continuously Tunable Microstrip Bandpass Filters: A Review, Issues and Future Trends

M Qin, Z Li, Z Ren, P Liu, L Liao, X Qiu, Z Li - IEEE Access, 2024 - ieeexplore.ieee.org
Electronically tuned bandpass filters are crucial frequency-selective devices in tunable RF
front-ends and are extensively utilized in the fields of communications and sensing. For low …

Single antenna and no circulator full-duplex with 52 dB wideband self-interference suppression

Y Du, K Yang, GF Li, N Chen… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Full-duplex (FD) enables high spectrum efficiency and dynamic spectrum accessing,
although its application is restricted by significant self-interference. In this work, we present …

A 28-GHz, multi-beam, decentralized relay array

S Nooshabadi, PP Khial, A Fikes… - IEEE Journal of Solid …, 2023 - ieeexplore.ieee.org
Multi-beam relays can be used to overcome the non-line-of-sight (NLOS) issues in millimeter-
wave (mm-wave) communication networks that serve many users in an obstruction-rich …