Results 81 to 90 of about 5,087 (193)

Design of 4×4 and 8×8 Ultra-Wideband Butler Matrices Employing Hexagonal-Shaped Couplers and Phase Shifters

IEEE Access
In this paper, a novel design of ultra-wideband $4 \times 4$ and $8 \times 8$ Butler matrices for use in multi-beam antenna arrays is presented. The proposed design uses microstrip slot technology, employing two microstrip dielectric layers with a ...
Mohsen Karimian-Kakolaki, Majid Afsahi, Ahmad Bakhtafrouz   +2 more
doaj   +1 more source

A Wideband 1×3 Filtering Beamforming Network Featuring Input-Reflectionless and Extended Phase Reconfigurability [PDF]

Radioengineering
In the paper, a wideband 1×3 filtering beamforming network (BFN) with extended phase reconfigurability and input-reflectionless feature is presented for the first time by employing three-way reflectionless power divider, switched 0°/180° phase shifter ...
Y. Zhang, H. M. Liu, Y. Meng, Z. B. Wang
doaj  

Low Loss Wideband 4×4 Butler Matrix Networks Based on Substrate Integrated Waveguide for 5G Applications

IEEE Access
Current wireless communications urgently need to provide huge data rates, high gain and high directivity radiation pattern beams. Therefore, beamforming networks (BFNs) are introduced to provide these needs.
Yaqdhan Mahmood Hussein, Mohamad Kamal A. Rahim, Noor Asniza Murad, Hatem Oday Hanoosh   +3 more
doaj   +1 more source

Deep Learning-based Compensation for Doppler Shifts in Hybrid Beamforming for mmWave Communication

Journal of Telecommunications and Information Technology
Millimeter-wave (mmWave) communication is a key enabler of 5G and future wireless systems, providing vast bandwidth for high-speed data transfers.
Kartik Ramesh Patel, Sanjay Dasrao Deshmukh   +1 more
doaj   +1 more source

Time Modulated Arrays Beamforming for Non-Terrestrial Network User Terminal

IEEE Open Journal of the Communications Society
Though beamforming is the fundamental element of satellite communication, it incurs costs, complexity, and power consumption. In this paper, we study a Time-Modulated Array (TMA) beamforming design on the Non-Terrestrial Network (NTN) User Terminal (UT ...
Gebrehiwet Gebrekrstos Lema, Eva Lagunas, M. R. Bhavani Shankar, Joel Grotz   +3 more
doaj   +1 more source

Molecular Beamforming for Actuation in Molecular Communication Networks

IEEE Transactions on NanoBioscience
The actuation accuracy of sensing tasks performed by molecular communication (MC) schemes is a very important metric. Reducing the effect of sensors fallibility can be achieved by improvements and advancements in the sensor and communication networks design.
Joana Angjo, Ali E. Pusane, H. Birkan Yilmaz, Ertugrul Basar, Tuna Tugcu   +4 more
openaire   +3 more sources

Optimization of Beamforming and Transmit Power Using DQN and Comparison With Traditional Techniques

IEEE Access
As Artificial Intelligence (AI) and Machine Learning (ML) technologies continue to evolve, their integration into 5G and 6G networks has become critical for improving performance and efficiency.
Parmida Geranmayeh, Eckhard Grass
doaj   +1 more source

Physics-Informed Deep Learning for 2-D Phased Array Beamforming With Imperfection Tolerance

IEEE Access
Designing efficient and reliable two-dimensional (2D) beamforming for phased array antennas (PAAs) remains a significant challenge because of the heavy computational demands involved.
Tarek Sallam, Ahmed M. Attiya
doaj   +1 more source

A Compact Broadside Coupled Stripline 2-D Beamforming Network and Its Application to a 2-D Beam Scanning Array Antenna Using Panasonic Megtron 6 Substrate. [PDF]

Sensors (Basel)
Temga J, Shiba T, Suematsu N.
europepmc   +1 more source

Advancing Ultrasound Beamforming With Deep Learning: A Comprehensive Review of Methods, Datasets, Benchmarks, and Computational Challenges. [PDF]

Int J Biomed Imaging
Hadri H, Fail A, Sadik M.
europepmc   +1 more source