Results 71 to 80 of about 1,855 (196)
Imaging Conductive Objects Through Metal Enclosures Using ELF/VLF Magnetic Fields
IEEE Access, 2020 Imaging through conductive media is a pervasive problem in medical, industrial, and security applications. Several potential modalities such as X-ray, exotic particle beams, and related high resolution techniques have been employed in the past.
Ho Y. Kim +8 more
doaj +1 more source
IET Science, Measurement &Technology, Volume 19, Issue 1, January/December 2025.This study demonstrates that the conventional 8% physical volume rule for Equipment Under Tests (EUTs) in reverberation chambers is an unreliable guideline for maintaining field uniformity. Our full‐wave simulation results prove that an EUT's electrical size and geometric shape are the more critical factors.
Bowen Li +5 more
wiley +1 more source
Electromagnetic scattering characteristics of flapping bird and experimental validation
The Journal of Engineering, 2019 Bird flight has caused many scientists' interest for a long time, of which the flapping is the most common locomotion. Radar provides a powerful tool to observe birds' migration.
Cheng Hu +3 more
doaj +1 more source
Modeling and Analysis of Composite Antenna Superstrates Consisting on Grids of Loaded Wires [PDF]
, 2007 We study the characteristics and radiation mechanism of antenna superstrates based on closely located periodical grids of loaded wires. An explicit analytical method based on the local field approach is used to study the reflection and transmission ...
Gonzalo, Ramon +3 more
core +4 more sources
Analysis of Target Electromagnetic Scattering Characteristics Based on Accelerated SBR Algorithm
International Journal of Antennas and Propagation, Volume 2025, Issue 1, 2025.Aiming at the inefficiency problem faced when analyzing the electromagnetic scattering characteristics of electrically large‐sized targets, this paper, based on the existing bounding volume hierarchy (BVH) tree accelerated data structure commonly used in the shooting and bouncing rays (SBR) method, improves the deeper hierarchical structure of the BVH ...
Xuanji Wang +3 more
wiley +1 more source
SIMULATION OF ELECTROMAGNETIC PICKUP ON CCTV COAXIAL CABLE
Системный анализ и прикладная информатика, 2015 The utilization of computer-aided design FEKO for simulation of electromagnetic interference on coaxial cables of different types, such as those used in CCTV (RG59/U, RG11/U, RG179/U) is proposed.
O. V. Boiprav, T. V. Borbotko
doaj
An Improved Crayfish Algorithm‐Based Neural Network Method for Modeling Microstrip Patch Antennas
International Journal of Antennas and Propagation, Volume 2025, Issue 1, 2025.Artificial neural networks (ANNs) have shown remarkable advantages in antenna modeling and optimization as surrogate models. However, in single‐objective modeling, the convergence accuracy of ANN‐based antenna models is often insufficient. This paper proposes an improved crayfish optimization algorithm (ICOA) to optimize the initial weights and biases ...
Shao-Long Cao +5 more
wiley +1 more source
High performance WR-1.5 corrugated horn based on stacked rings
, 2014 We present the development and characterisation of a high frequency (500-750 GHz) corrugated horn based on stacked rings. A previous horn design, based on a Winston profile, has been adapted for the purpose of this manufacturing process without ...
Ansermet, Jean-Philippe +8 more
core +1 more source
Electromagnetic Cavity Effects from Transmitters Inside a Launch Vehicle Fairing [PDF]
, 2009 This paper provides insight into the difficult analytical issue for launch vehicles and spacecraft that has applicability outside of the launch industry. Radiation from spacecraft or launch vehicle antennas located within enclosures in the launch vehicle
Stanley, James +2 more
core +3 more sources