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In millimeter-wave (mmWave) dual-function radar-communication (DFRC) systems, hybrid beamforming (HBF) is recognized as a promising technique utilizing a limited number of radio frequency chains. In this work, in the presence of extended…

信号处理 · 电气工程与系统科学 2022-11-07 Ziyang Cheng , Linlong Wu , Bowen Wang , Bhavani Shankar M. R. , Björn Ottersten

Millimeter wave communications require multibeam beamforming in order to utilize wireless channels that suffer from obstructions, path loss, and multi-path effects. Digital multibeam beamforming has maximum degrees of freedom compared to…

We demonstrate a wide-band diplexed focal plane suitable for observing low-frequency foregrounds that are important for cosmic microwave background polarimetry. The antenna elements are composed of slotted bowtie antennas with 60% bandwidth…

Next-generation wireless systems will offer integrated sensing and communications (ISAC) functionalities not only in order to enable new applications, but also as a means to mitigate challenges such as doubly-dispersive channels, which…

In Internet of Things (IoT), radio frequency fingerprints (RFF) technology has been widely used for passive security authentication to identify the special emitter. However, few works took advantage of independent oscillator distortions at…

信号处理 · 电气工程与系统科学 2023-07-12 Xiaofang Chen , Wenbo Xu , Yue Wang

In the future, with the advent of Internet of Things (IoT), wireless sensors, and multiple 5G killer applications, an indoor room might be filled with $1000$s of devices demanding low data rates. Such high-level densification and mobility…

网络与互联网体系结构 · 计算机科学 2020-09-23 Rohit Singh , Doug Sicker

In next generation wireless communication system, wireless transceivers should be able to handle wideband input signals compromising of multiple communication standards.Such multi-standard wireless communication receivers (MWCRs) need…

信息论 · 计算机科学 2016-09-28 Sasha Garg , S. J. Darak

In this article, we address the challenges of transmitter-receiver isolation in \emph{mobile full-duplex devices}, building on shared-antenna based transceiver architecture. Firstly, self-adaptive analog RF cancellation circuitry is…

This paper presents a novel design procedure for wideband microstrip bandpass filters with non-equiripple filtering frequency responses and low sensitivity. Different from the traditional Chebyshev transfer function filters, the return loss…

仪器与探测器 · 物理学 2014-01-28 S. S. Gao , Sheng Sun

This letter develops a novel transmit beamforming (BF) design for canceling self-interference (SI) in analog in-band full-duplex phased arrays. Our design maximizes transmit BF gain in a desired direction while simultaneously reducing SI…

信号处理 · 电气工程与系统科学 2024-01-26 Ao Liu , Ian P. Roberts , Taneli Riihonen , Weixing Sheng

This manuscript presents an ultra-wideband Microstrip multiple-input-multiple-output (MIMO) antenna covering the 2.4GHz to 6.5 GHz wireless local networks (WLAN) and Sub-6G bands. The applied MIMO antenna is composed of two symmetrical…

系统与控制 · 电气工程与系统科学 2023-03-02 Adel Omrani

Low-loss planar Goubau lines show promising potential for terahertz applications. However, a single-wire waveguide exhibits less design freedom than standard multi-conductor lines, which is a significant constraint for realizing standard…

应用物理 · 物理学 2022-11-10 Juan Cabello-Sánchez , Vladimir Drakinskiy , Jan Stake , Helena Rodilla

The evolution of autonomous vehicles necessitates robust, high-speed, and low-latency wireless communication systems. This paper presents a novel high-gain Multiple-Input Multiple-Output (MIMO) beamforming antenna system that concurrently…

信号处理 · 电气工程与系统科学 2025-06-10 Mohammad Shahed Pervez , Amanpreet Kaur

We propose and experimentally demonstrate a planar array of optical bandpass filters composed of low loss dielectric metasurface layers sandwiched between two distributed Bragg reflectors (DBRs). The two DBRs form a Fabry-P\'erot resonator…

光学 · 物理学 2016-06-29 Yu Horie , Amir Arbabi , Ehsan Arbabi , Seyedeh Mahsa Kamali , Andrei Faraon

Recently, full duplex (FD) has been studied in 5G LTE millimeter wave (mmWave) cellular communications for New Radio in 3GPP releases 15-17. FD allows bidirectional transmission over the same resources and has the potential to reduce…

信号处理 · 电气工程与系统科学 2022-02-08 Elyes Balti , Brian L. Evans

We propose a novel class of ultrathin high Q passband filters designed by properly combining different multipolar resonances sustained by an all dielectric metasurface. A rigorous analytical model, based on surface impedance homogenization…

应用物理 · 物理学 2021-08-16 Alessio Monti , Andrea Alù , Alessandro Toscano , Filiberto Bilotti

Modern wireless communication networks, particularly cellular networks utilize multiple antennas to improve the capacity and signal coverage. In these systems, typically an active transceiver is connected to each antenna. However, this…

信息论 · 计算机科学 2016-08-24 Vijay Venkateswaran , Florian Pivit , Lei Guan

With the increasing network densification, it has become exceedingly difficult to provide traditional fiber backhaul access to each cell site, which is especially true for small cell base stations (SBSs). The increasing maturity of…

信息论 · 计算机科学 2018-11-13 Chiranjib Saha , Mehrnaz Afshang , Harpreet S. Dhillon

A coupled dielectric-metal metasurface (CDMM) consisting of amorphous silicon (a-$\textit{Si}$) rings and subwavelength holes in $\textit{Au}$ layer separated by a $\textit{SiO}_{2}$ layer is presented. The design parameters of the CDMM is…

光学 · 物理学 2020-01-08 Arvind Nagarajan , Koen van Erve , Giampiero Gerini

Full-duplex (FD) systems have the capability to transmit and receive at the same time in the same frequency band. FD systems can reduce congestion and latency and improve coverage and spectral efficiency. As a relay, they can increase range…

信号处理 · 电气工程与系统科学 2021-10-26 Elyes Balti , Brian L. Evans