Results 61 to 70 of about 5,384 (187)

Metamaterial loaded miniaturized extendable MIMO antenna with enhanced bandwidth, gain and isolation for 5G sub-6 GHz wireless communication systems

Ain Shams Engineering Journal
Multiple-input multiple-output (MIMO) antennas are crucial for fifth-generation (5G) communications that enhance data transmission rate, spectrum utilization, channel quality, and reliability.
Md. Mhedi Hasan, Mohammad Tariqul Islam, Touhidul Alam, Phumin Kirawanich, Saeed Alamri, Ahmed S. Alshammari   +5 more
doaj   +1 more source

Optimal Antenna Allocation in MIMO Radars with Collocated Antennas [PDF]

IEEE Transactions on Aerospace and Electronic Systems, 2014
Submitted to IEEE Transactions on Aerospace and Electronic ...
Gorji, A. A., Tharmarasa, R., Blair, W. D., Kirubarajan, T.   +3 more
openaire   +2 more sources

Space‐Time‐Coding Metasurfaces Enabling Programmable Range‐Angle‐Dependent Energy Auto‐Scanning

Nanophotonics, Volume 15, Issue 14, 27 July 2026.
This paper presents a novel energy auto‐scanning system based on a space‐time‐coding metasurface. By applying progressive time‐delayed, time‐varying phase modulation, the system generates non‐uniform, temporally evolving electromagnetic field distributions across both angle and range.
Yuzhen Chen, Xiaoyi Wang, Guo‐Min Yang, Ya‐Qiu Jin   +3 more
wiley   +1 more source

Ultra‐Low Loss Weakly Coupled Few‐Mode Hollow‐Core Anti‐Resonant Fiber Enabling Eight Channels via Differential Wall Thickness and Truncated Tubes

Nanophotonics, Volume 15, Issue 13, 13 July 2026.
A novel ultra‐low loss, weakly coupled few‐mode hollow‐core anti‐resonant fiber is realized through truncated tubes and differential wall thickness, which can support eight spatial modes as independent channels. The effective refractive index difference between adjacent modes is greater than 1.0 × 10−4, and the intrinsic loss of all target modes at ...
Biao Wang, Qiang Shi, Xin Wang, Shuqin Lou, Zhenggang Lian   +4 more
wiley   +1 more source

Design and analysis of tetra-port MIMO antenna for next generation vehicular communication

Scientific Reports
The demand for advanced automotive applications necessitated the development of 5G/6G multiple-input-multiple-output (MIMO) antennas. This work presents a low-profile antenna resonating at 5.9 GHz, suitable for vehicle-to-vehicle communication ...
Lekha Kannappan, Dhananjeyan Rajendran, Rajesh Kumar Dhandapani, Sandeep Kumar Palaniswamy, Sachin Kumar, Bhawna Goyal, Om Prakash Kumar   +6 more
doaj   +1 more source

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

Advanced Materials Technologies, Volume 11, Issue 13, 8 July 2026.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane, Lyn I. Jones, Richard M. Martin, Helen Winter, Faezeh Arab Hassani   +4 more
wiley   +1 more source

Simple Mu-Negative Half Mode CRLH Antenna Configuration for MIMO Applications [PDF]

Radioengineering, 2017
A design of compact size mu-negative half mode composite right left handed metamaterial antenna, using only series capacitive loading, for MIMO application is presented. The proposed configuration is simple as it is realized using via free configuration.
M. A. Abdalla, A. A. Ibrahim
doaj  

Near‐Field Coupling Suppression of Dual Circularly Polarized Antennas via Epsilon‐Near‐Zero Metamaterial

Advanced Photonics Research, Volume 7, Issue 7, July 2026.
An ENZ metamaterial slab enables near‐field coupling suppression in dual circularly polarized stacked patch antennas while preserving radiation performance. The near‐zero‐index environment attenuates the transmission of parasitic coupling components between adjacent radiators, distinct from conventional current‐cancelation or port‐compensation ...
Yi Zhao, Lu Song, Zanyang Wang, Liqiao Jing, Dashuang Liao, Jiangang Liang   +5 more
wiley   +1 more source

Optimized Joint Relay and Antenna Selection for Enhanced Full‐Duplex Relay Networks

Engineering Reports, Volume 8, Issue 7, July 2026.
This study proposes a joint relay and antenna selection strategy for full‐duplex amplify‐and‐forward relay networks. By adaptively optimizing transmitter–receiver configurations based on channel conditions, the method reduces self‐interference, lowers outage probability, and symbol error rate, and enhances spectral efficiency, offering a scalable ...
Deepika Rani Sona, Visalakshi Annepu, Kalapraveen Bagadi, Olutayo O. Oyerinde   +3 more
wiley   +1 more source

A defected ground structure based ultra-compact wider bandwidth terahertz multiple-input multiple-output antenna for emerging communication systems

Heliyon
This work presents a quad-port Multiple Input Multiple Output (MIMO) wideband antenna that operates in the terahertz (THz) frequency range is designed and analyzed. To improve MIMO performance, a defective ground structure (DGS) is used.
Praveen Kumar, V. Sivakumar, Vidya Rao, Criss Tom George, Bhaskar Awadhiya, Yogeshwary Bommenahalli Huchegowda, Yashwanth Nanjappa   +6 more
doaj   +1 more source