Results 31 to 40 of about 130,653 (318)
Design and analysis of ultra‐wideband decoupling structure based on polarization mismatch
Electronics LettersIn this work, a polarization rotating surface is designed, analyzed, and applied to the decoupling of ultra‐wideband antennas. A method of using dual‐size combined rings is proposed to expand the operating bandwidth to 4.8 to 18.2 GHz, and the ...
Jianpu Qiao +4 more
doaj +1 more source
Photonic-Assisted E-Band Millimeter-Wave 1 × 2 MIMO Near-Sea-Surface Long-Distance Communication
PhotonicsE/W-band millimeter-wave signals are highly promising for long-distance offshore wireless communications. However, the high humidity over the sea surface, together with the continuous fluctuation of sea waves, gives rise to severe near-sea-surface ...
Shuowei Wang +4 more
doaj +1 more source
IEEE Access, 2017 Hexagonal boron nitride intercalated multilayer grapheme (hBN-IMLG) promises one of the potential materials for high performance tunable passive components in terahertz (THz) band, due to its good electrical properties and impressive tunability with ...
Xiang Li, Lin-Sheng Wu, Jun-Fa Mao
doaj +1 more source
IEEE Access, 2020 A diagnosing method for phased antenna array element failures is proposed. The element excitation amplitudes and phases are reconstructed by a compressed sensing based approach, in which the radiated electric fields of the array are sampled by a single ...
Can Xiong, Gaobiao Xiao
doaj +1 more source
Energies, 2021 The motor is an important part of the flywheel energy storage system. The flywheel energy storage system realizes the absorption and release of electric energy through the motor, and the high-performance, low-loss, high-power, high-speed motors are key ...
Wen Ji +5 more
doaj +1 more source
Advanced Engineering Materials, Volume 27, Issue 6, March 2025.ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur +5 more
wiley +1 more source
Planar Solid‐State Nanopores Toward Scalable Nanofluidic Integration Based on CMOS Technology
Advanced Engineering Materials, EarlyView.We present a scalable silicon‐based fabrication strategy for planar solid‐state nanopores to enable their integration with complex nanofluidic systems. Prototype devices demonstrate normal voltage‐current characteristics, good noise performance, and appreciable streaming currents. Our CMOS‐compatible fabrication process offers precise geometric control
Ngan Hoang Pham +7 more
wiley +1 more source
Reflection on methodology of the correlation between electromagnetic interference and safety in high-speed railways [PDF]
Railway SciencesPurpose – In the continuous development of high-speed railways, ensuring the safety of the operation control system is crucial. Electromagnetic interference (EMI) faults in signaling equipment may cause transportation interruptions, delays and even ...
Chang Liu +4 more
doaj +1 more source
A Compact Spin‐Coated Graphene UWB Antenna for Breast Tumor Detection
Advanced Engineering Materials, EarlyView.A compact, spin‐coated graphene ultra‐wideband patch antenna designed for breast tumor detection, capable of distinguishing between malignant and benign tumors. This innovative antenna can serve as an effective initial screening tool, particularly in resource‐limited settings such as rural areas, where access to advanced medical equipment like MRI and ...
Raja Rashidul Hasan +9 more
wiley +1 more source
Considerations of uncertainty in robust optimisation of electromagnetic devices
, 2014 Due to unavoidable uncertainties related to material properties and manufacturing processes, the robustness of the optimal solution must be considered when designing electromagnetic devices.
Rotaru, Mihai +3 more
core +1 more source