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To achieve high data rates defined in 5G, the use of millimeter-waves and massive-MIMO are indispensable. To benefit from these technologies, an accurate estimation of the channel parameters is crucial. We propose a novel two-stage…

Signal Processing · Electrical Eng. & Systems 2020-07-15 Fazal-E-Asim , Felix Antreich , Charles C. Cavalcante , André L. F. de Almeida , Josef A. Nossek

Wireless communication requires an effective antenna synthesis that characterizes adequate infrastructures to provide the broader bandwidth and reduced interference. Antenna design with minimal signal degradation, optimal gain directive…

Signal Processing · Electrical Eng. & Systems 2019-10-04 Gebrehiwet Gebrekrstos Lema , Dawit Hadush Hailu

A kind of asymmetric transmission (AT) device based on bilayer silicon arrays (BSA) nanostructure is theoretically explored, which achieves high forward transmissivity and suppressed backward transmissivity for broadband by simply adjusting…

Optics · Physics 2026-01-27 Ruihan Ma , Yuqing Cheng , Mengtao Sun

In this paper, we study the influence of the radius of a cylindrical supporting structure on radiation properties of a conformal millimeter-wave antenna array. Bent antenna array structures on cylindrical surfaces may have important…

Instrumentation and Detectors · Physics 2015-02-27 V. Semkin , A. Bisognin , M. Kyro , V-M. Kolmonen , C. Luxey , F. Ferrero , F. Devillers , A. V. Raisanen

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…

Signal Processing · Electrical Eng. & Systems 2024-01-26 Ao Liu , Ian P. Roberts , Taneli Riihonen , Weixing Sheng

In the beyond fifth-generation (B5G) and upcoming sixth-generation (6G) wireless communication systems, millimeter (mmWave) wave technology is a promising solution for offering additional bandwidth resources and mitigating spectrum…

Signal Processing · Electrical Eng. & Systems 2025-10-10 Jiawei Zhang , Shihan Wang , Jienan Chen , Fan Wu , Jiyun Tao , Zheqi Gu

A near-field integrated sensing and communications (ISAC) framework is proposed, which introduces an additional distance dimension for both sensing and communications compared to the conventional far-field system. In particular, the…

Information Theory · Computer Science 2025-09-24 Zhaolin Wang , Xidong Mu , Yuanwei Liu

In this paper we present a novel beamforming technique that can be used with an array of quantum sensors. The transmit waveform is a short-duration frequency comb constructed using a finite number of sinusoidal tones separated by a fixed…

Signal Processing · Electrical Eng. & Systems 2023-12-29 Peter Vouras

In this article, a compact wideband circularly polarized antenna based on a miniaturized phase shifter with ultra-wideband operation is proposed. The proposed antenna is comprised of a pair of compact orthogonal ultra-wideband Vivaldi…

Optics · Physics 2025-10-21 Han-Jie Xu , Shi-Wei Qu

The scalability of most transition-edge sensor arrays is limited by the multiplexing technology which combines their signals over a reduced number of wires and amplifiers. In this Letter, we present and demonstrate a multiplexer design…

This paper proposes a complete IFoF system architecture derived from simplified IEEE802.15.3c PHY layer proposal to successfully ensure near 1 Gbps on the air interface. The system architecture utilizes low complexity baseband processing…

Networking and Internet Architecture · Computer Science 2010-11-10 Lahatra Rakotondrainibe , I. Siaud , Y. Kokar , G. Zaharia , F. Brunet , E. Tanguy , G. El Zein

A novel miniaturized printed folded dipole antenna has been designed for narrowband sensing applications. It is shown that the antenna may be systematically engineered to achieve matching to a practical source impedance at frequencies well…

Applied Physics · Physics 2020-05-07 Sanghamitro Das , David J. Sawyer , Nectaria Diamanti , A. Peter Annan , Ashwin K. Iyer

Modern communication systems will require antennas with adaptive functionality which are able to modify their performance based on the requirements of the channel. For example, mobile ad-hoc networks need directive antennas that are able to…

Applied Physics · Physics 2023-07-19 Henry Giddens , Yang Hao

The high path loss associated with millimeter wave (mmWave) frequency communication can be compensated by large scale antenna arrays such as multiple-input multiple-output (MIMO) systems. The hybrid beamforming architecture which uses fewer…

Signal Processing · Electrical Eng. & Systems 2022-11-17 Evangelos Vlachos , Aryan Kaushik , Muhammad Z. Shakir

Two-dimensional silicon carbide stands out among 2D materials, primarily due to its notable band gap, unlike its carbon-based counterparts. However, the binary nature and non-layered structure of bulk SiC present challenges in fabricating…

Materials Science · Physics 2024-11-26 Arushi Singh , Vikram Mahamiya , Alok Shukla

The analysis of wireless communication channels at the mmWave, sub-THz and THz bands gives rise to difficulties in the construction of antenna arrays due to the small maximum inter-element spacing constraints at these frequencies. Arrays…

Signal Processing · Electrical Eng. & Systems 2024-03-27 Marc Miranda , Sebastian Semper , Michael Döbereiner , Reiner Thomä

Reconfigurable meta-surface (RMS) is proposed as a very promising and novel technology, which is composed of a large number of low-cost passive elements, and can achieve passive beamforming by controlling the amplitude and phase of incident…

Signal Processing · Electrical Eng. & Systems 2022-02-22 Zhendong Li , Wen Chen , Chong He , Xudong Bai , Jianmin Lu

Massive MIMO is a promising air interface technique for 5G wireless communications. Such antennas offers capabilities to utilize channel correlations to create beams suitable for user specific transmissions. Most of the prior research is…

Signal Processing · Electrical Eng. & Systems 2020-12-07 Sven O. Petersson , Maksym A. Girnyk

Wearable, implantable, and ingestible antennas are continuously evolving in biomedical applications, as they are crucial components in devices used for monitoring and controlling physiological parameters. This work presents an…

Systems and Control · Electrical Eng. & Systems 2024-11-20 Maria Koutsoupidou , Dimitrios C. Tzarouchis , Dionysios Rompolas , Ioannis Sotiriou , George Palikaras , Panagiotis Kosmas

Reconfigurable intelligent surfaces (RISs) have promising coverage and data rate gains for wireless communication systems in 5G and beyond. Prior work has mainly focused on analyzing the performance of these surfaces using computer…

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