Results 61 to 70 of about 15,345 (175)

Optically Transparent Ka‐Band Absorber With Multi‐Fractal Rings and a Metal Mesh Ground Plane

Microwave and Optical Technology Letters, Volume 68, Issue 6, June 2026.
ABSTRACT An optically transparent absorber based on multi‐fractal ring resonators and a metal mesh ground plane is presented for Ka‐band applications. By merging multiple resonances, the proposed absorber maintains an absorption bandwidth from 25.8 to 31.1 GHz.
Junseong Bae, Seoyeong Min, Suho Chang, Daehyeon Kim, Donggeun An, Wonbin Hong, Youngno Youn   +6 more
wiley   +1 more source

IEEE 802.11az Indoor Positioning with mmWave [PDF]

, 2023
Last years we have witnessed the uprising of location based applications, which depend on the devices ability to accurately obtain their position. IEEE 802.11, foretelling the need for such applications, started the IEEE 802.11az work on Next Generation ...
Barroso-Fernández, Carlos, Martín-Pérez, Jorge, Picazo-Martínez, Pablo, Groshev, Milan, Barroso Fernández, Carlos, Martín Pérez, Jorge, de la Oliva, Antonio, Oliva, Antonio de la, Picazo Martínez, Pablo   +8 more
core   +1 more source

Quantum Protocol Architectures and Secure Control Frameworks For 7G+ Networks: Standards, Synchronization, Use Cases, and Challenges

Advanced Quantum Technologies, Volume 9, Issue 5, May 2026.
ABSTRACT Quantum‐native communication systems are reshaping secure, programmable, and coherence‐aware networking beyond the classical paradigm. As intelligent physical infrastructures, ranging from unmanned aerial vehicle swarms to satellite Quantum Key Distribution (QKD) platforms, demand trust, synchronization, and ultra‐reliability, conventional ...
Shakil Ahmed, Ibrahim Almazyad, Ashfaq Khokhar   +2 more
wiley   +1 more source

Physical layer authentication for 5G/6G millimeter wave communications by using channel sparsity

IET Communications, 2022
This paper proposes a comprehensive study for the physical layer channel based authentication (PLA) designs in mmWave communications, which reveals the principles that how does the sparse properties of mmWave channel can benefit the PLA designs and ...
Jie Tang, Hong Wen, Huanhuan Song
doaj   +1 more source

Millimeter‐Wave Antennas: A Comprehensive State‐of‐the‐Art Review of Design Approaches, Operating Bands, Challenges, and Applications in Body‐Centric and Emerging Systems

Radio Science, Volume 61, Issue 5, May 2026.
Abstract This paper reviews and classifies more than 120 recent contributions on millimeter‐wave (mm‐wave) antennas, with emphasis on their operating bands, design methods, and application domains. It surveys the main mm‐wave frequency ranges and their use in 5G/6G communications, radar and sensing, biomedical and body‐centric systems, imaging, and ...
Sarra Khacha, Chemseddine Zebiri, Mohammad Alibakhshikenari, Djamel Sayad, Issa Elfergani, Muhammad Akmal Chaudhary, Nisar Ahmad Abbasi, Arpan Desai, Jonathan Rodriguez, Takfarinas Saber, Ernesto Limiti   +10 more
wiley   +1 more source

Swarm Intelligence Optimization of Multi-RIS Aided MmWave Beamspace MIMO

peer reviewedWe investigate the performance of a multiple re-configurable intelligence surface (RIS)-aided millimeter wave (mmWave) beamspace multiple-input multiple-output (MIMO) system with multiple users (UEs).
CAMANA ACOSTA, Mario Rodrigo, SHEEMAR, Chandan Kumar, CHATZINOTAS, Symeon, ABDULLAH, Zaid, LAGUNAS, Eva, BABIKIR MOHAMMAD ADAM, Abuzar   +5 more
core   +1 more source

High‐Speed Flexible Schottky Diodes Based on Carbon Nanotubes

Advanced Electronic Materials, Volume 12, Issue 7, 6 April 2026.
We demonstrate a flexible Schottky diode based on carbon nanotube network thin film, and the devices are fabricated via a low‐temperature process on a PI substrate, which exhibits excellent radio‐frequency characteristics, with a high responsivity 6 A/W at zero bias, a high intrinsic cut‐off frequency reaching 153 GHz, and an extrinsic cut‐off ...
Yan Li, Haoyu Zhang, Xinyi Zheng, Weifeng Wu, Xiaowei He, Li Ding, Sheng Wang   +6 more
wiley   +1 more source

Multi-connectivity in 5G mmWave cellular networks

, 2016
The millimeter wave (mmWave) frequencies offer the potential of orders of magnitude increases in capacity for next-generation cellular wireless systems.
Mezzavilla M., Rangan S., Giordani M., Zorzi M.   +3 more
core   +1 more source

Imperfections to be Considered in mmWave Systems for Hybrid Processing / Imperfeições a serem consideradas em sistemas mmWave para processamento híbrido [PDF]

, 2021
This paper describes a methodology to generate mmWave scenarios, where both imperfect channel estimation and noised phase shifters are considered. This methodology is greatly useful to evaluate hybrid precoder performance. Numerical results evidence that
Nóbrega, Luciana Farias de Oliveira, Ortega, Alvaro Javier, Silva, Jackeline Dourado da   +2 more
core   +1 more source

Graphene-based beam-reconfigurable liquid antenna for 5G mmWave wireless systems

Frontiers in Communications and Networks
The advancement of wireless technologies has led to significant progress in antenna design in order to meet the continuously increasing demands. Liquid antennas have gained significant interest in research owing to their distinctive properties, such as ...
Sasmita Dash, Constantinos Psomas, Ioannis Krikidis   +2 more
doaj   +1 more source