Results 261 to 270 of about 345,966 (323)

Millimeter-Wave 5G Antenna-In-Package for Mobile Devices Featuring Intelligent Frequency Correction Using Distributed Surface Mount Technologies

European Conference on Antennas and Propagation, 2021
A new class of frequency adaptive 5G front-end architecture incorporating three function blocks is proposed, analyzed, and verified using surface-mount technology (SMT) for a millimeter-wave (mmWave) 5G mobile devices. At high frequencies, such as mmWave
Jaehyun Choi, Junho Park, W. Hwang, W. Hong   +3 more
semanticscholar   +1 more source

FREQUENCY DEPENDENCE OF THE IMPEDANCE OF DISTRIBUTED SURFACE STATES IN MOS STRUCTURES

Applied Physics Letters, 1966
K. Lehovec
openaire   +2 more sources

Lightning Impulse Impedance and Surface Potential Distribution of 10 kV Distribution Line Tower: Field Test and Simulation

IEEE Transactions on Power Delivery, 2022
The impulse grounding performance of distribution lines tower is the key factor to lightning protection. Few field high-current impulse test researches are conducted on distribution line tower. In this paper, we used a mobile high-current impulse generator to conduct test on a 10 kV distribution line tower.
Jian Xue, Huan Huang, Li Cai, Zhiling Xu, Yuqian Fang, Jianguo Wang, Yadong Fan   +6 more
openaire   +1 more source

A Load Capacitive Substrate-Integrated Impedance Surface (CSIIS) Patch Antenna with Wide Axial-Ratio (AR) Beamwidth

IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications, 2022
A circularly polarized (CP) microstrip patch antenna with low profile and wide 3-dB axial ratio beamwiths (ARBWs) is presented in this letter. The broadening of 3-dB axial ratio beam (ARBW) mainly depends on the reduction of the electrical size of ...
Yangdong Yan, Yuqiu Shang, Song Chong, Hong-Tao Cheng   +3 more
semanticscholar   +1 more source

Surface Ice Detection and Accretion Monitoring on Composite Structures employing Electromechanical Impedance Method

IEEE International Workshop on Metrology for AeroSpace, 2022
Detection of surface ice is of utmost importance in many industrial applications because it can induce performance degradation and be even life threatening.
Nicolas Christophel, Sebastian Kohl, L. Maio, V. Memmolo, J. Moll   +4 more
semanticscholar   +1 more source

FDTD Formulation Based on High-Order Surface Impedance Boundary Conditions for Frequency-Dependent Lossy Multi-Conductor Transmission Lines

IEEE transactions on magnetics, 2020
A finite-difference time-domain (FDTD) formulation for a uniform frequency-dependent lossy multi-conductor transmission line (MTL) is presented. It is based on a distributed parameter MTL model using partial resistances and partial inductances.
Youpeng Huangfu, L. Di Rienzo, Shuhong Wang   +2 more
semanticscholar   +1 more source

Statistical law of surface impedance distribution

IGARSS '96. 1996 International Geoscience and Remote Sensing Symposium, 2002
Theoretical equations are developed to describe the EM induction exploration of subsurface layered structure. The theory is applicable to LF, VLF and ELF sounding of crustal rocks.
Yu.B. Bashkuev, V.B. Haptanav, L.H. Angarkhaeva   +2 more
openaire   +1 more source

Distribution of current, surface impedance, and damping in superconductor coupled microstriplines

Technical Physics, 1997
The nonuniform current distribution in the transverse cross section of the coupled conductors of a microstripline made with superconductor films leads to a substantial dependence of the losses in the line on the relative position of the coupled strips.
I. B. Vendik, M. N. Gubina, A. N. Deleniv, D. V. Kholodnyak   +3 more
openaire   +1 more source

Research of mutual radiation impedance effect on surface vibration velocity distribution

2017 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC), 2017
Based on the lumped parameter theory of piezoelectric transducer, the mathematical relationship between mutual radiation impedance and surface vibration velocity distribution of the array element is established, and then the simulation experiments were carried out for a 5×5 planar array.
Daojiang Li, Yan Yi, Wentao Shi
openaire   +1 more source

Electrical Impedance Tomographic Shape Sensing for Soft Robots

IEEE Robotics and Automation Letters, 2023
With infinite degrees of freedom, soft robots are expected to achieve dexterous and complex tasks, but this also puts forward higher requirements for their sensing capabilities.
Wenci Xin, Fangmeng Zhu, Peiyi Wang, Zhexin Xie, Zhiqiang Tang, Cecilia Laschi   +5 more
semanticscholar   +1 more source