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This letter considers the architecture of distributed antenna system, which is made up of a massive number of single-antenna remote radio heads (RRHs), some with full-resolution but others with low-resolution analog-to-digital converter…

Information Theory · Computer Science 2017-05-16 Jide Yuan , Shi Jin , Chao-Kai Wen , Kai-Kit Wong

An antenna prototype utilizing artificial impedance surfaces to control the near field distribution is described. The antenna is a folded dipole placed above a finite-size artificial impedance surface. We have found that the field screening…

It has long been a challenging task to improve the light collection efficiency of conventional image sensors built with color filters that inevitably cause the energy loss of out-of-band photons. Although various schemes have been proposed…

Integrated sensing and communication (ISAC) emerges as a promising technology for B5G/6G, particularly in the millimeter-wave (mmWave) band. However, the widely utilized hybrid architecture in mmWave systems compromises multiplexing gain…

Signal Processing · Electrical Eng. & Systems 2025-02-20 Boxun Liu , Shijian Gao , Zonghui Yang , Xiang Cheng , Liuqing Yang

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…

Signal Processing · Electrical Eng. & Systems 2025-06-10 Mohammad Shahed Pervez , Amanpreet Kaur

A high performance multi-UAV communication system, which bridges multiple UAVs and ground station, is one of the key enablers to realize a variety of UAV-based systems. To address the issues such as the low spectrum efficiency caused by the…

Information Theory · Computer Science 2022-02-02 Tao Yu , Kiyomichi Araki , Kei Sakaguchi

Integrated Sensing and Communications (ISAC) is a promising technology for future wireless networks, enabling simultaneous communication and sensing using shared resources. This paper investigates the performance of full-duplex (FD)…

Signal Processing · Electrical Eng. & Systems 2025-08-21 Ahsan Nazar , Zhambyl Shaikhanov , Sennur Ulukus

Complex field measurements are increasingly becoming the standard for state-of-the-art astronomical instrumentation. Complex field measurements have been used to characterize a suite of ground, airborne, and space-based heterodyne receiver…

Instrumentation and Methods for Astrophysics · Physics 2018-09-25 Kristina K. Davis , Willem Jellema , Stephen J. C. Yates , Christopher E. Groppi , Jochem J. A. Baselmans , Andrey M. Baryshev

We present the optical characterization of two-scale hierarchical phased-array antenna kinetic inductance detectors (KIDs) for millimeter/submillimeter wavelengths. Our KIDs have a lumped-element architecture with parallel plate capacitors…

Instrumentation and Methods for Astrophysics · Physics 2024-02-01 Jean-Marc Martin , Junhan Kim , Fabien Defrance , Shibo Shu , Andrew D. Beyer , Peter K. Day , Jack Sayers , Sunil R. Golwala

In this letter, we present a correlated channel model for a dual-polarization antenna to omnidirectional antennas in indoor small-cell multiple-input multiple-output (MIMO) systems. In an indoor environment, we confirm that the…

Information Theory · Computer Science 2017-12-07 Yeon-Geun Lim , Yae Jee Cho , TaeckKeun Oh , Yongshik Lee , Chan-Byoung Chae

This paper presents sub-Terahertz (THz) radio propagation measurements at 142 GHz conducted in four factories with various layouts and facilities to explore sub-THz wireless channels for smart factories in 6G and beyond. Here we study…

Information Theory · Computer Science 2023-02-24 Shihao Ju , Theodore S. Rappaport

Integrated sensing and communication (ISAC) in millimeter wave is a key enabler for next-generation networks, which leverages large bandwidth and extensive antenna arrays, benefiting both communication and sensing functionalities. The…

Signal Processing · Electrical Eng. & Systems 2025-02-18 Tianhao Mao , Jie Yang , Le Liang , Shi Jin

The stringent spatial constraints and the demand for high antenna efficiency in modern wireless earphones present significant design challenges. To address these issues, this paper presents and thoroughly investigates a novel earphone…

Signal Processing · Electrical Eng. & Systems 2025-10-21 Shiming Liu , Jianhua Xie , Yan Wang

Distributed integrated sensing and communication (D-ISAC) enables multiple spatially distributed nodes to cooperatively perform sensing and communication. However, achieving coherent cooperation across distributed nodes is challenging due…

Systems and Control · Electrical Eng. & Systems 2026-04-06 Seonghoon Yoo , Seulhyun Kwon , Kawon Han , Elaheh Ataeebojd , Mehdi Rasti , Joonhyuk Kang

An Artificial Magnetic Conductor (AMC) frame capable of improving the impedance matching of a 2$\times$2 array for 6G applications without degrading isolation performance is presented. The proposed frame is integrated into the array without…

Systems and Control · Electrical Eng. & Systems 2026-04-03 Edoardo Giusti , Krishan Kumar Tiwari , C. J. Reddy , Danilo Brizi , Agostino Monorchio , Giuseppe Caire

We report the realization of a bonded-bridge on-chip superconducting coil and its use in impedance-matching a highly ohmic quantum dot (QD) to a $\rm{3~GHz}$ measurement setup. The coil, modeled as a lumped-element $LC$ resonator, is more…

Quantum Physics · Physics 2018-01-03 M. -C. Harabula , T. Hasler , G. Fülöp , M. Jung , V. Ranjan , C. Schönenberger

This paper studies a multi-antenna networked integrated sensing and communications (ISAC) system, in which a set of multi-antenna base stations (BSs) employ the coordinated transmit beamforming to serve multiple single-antenna communication…

Information Theory · Computer Science 2023-07-12 Gaoyuan Cheng , Yuan Fang , Jie Xu , Derrick Wing Kwan Ng

In doubly selective channels, receiver windowing constitutes an effective technique for enhancing the banded structure of the frequency-domain channel matrix, and thus improving the effectiveness of a banded equalizer for intercarrier…

Information Theory · Computer Science 2016-09-19 Evangelos Vlachos , Kostas Berberidis

Far-field shaping of small antennas is a challenge and the realizations of non-dipole radiation of small to intermediate sized antennas are difficult. Here we examine the antenna bandwidth cost associated with such constraints, and in…

Applied Physics · Physics 2018-08-28 Shuai Shi , Lei Wang , B. L. G. Jonsson

Q-enhanced racetrack micro-resonators for the silicon nitride photonics integration platform have been designed, fabricated and characterized. The proposed geometries permit to mitigate the impact of radiation loss at curved waveguides, one…

Optics · Physics 2020-09-08 Pedro Chamorro-Posada , Rocío Baños