Results 81 to 90 of about 1,807 (185)
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
Differents Aspects of the Interferences Caused By Wind Farms Over Tv Signals [PDF]
, 2010 One of the environmental effects of wind farms is that wind turbines act as scattering devices of the electromagnetic RF waves and thus, may cause interferences to different telecommunication services around them.
Blanco Gonzalez, Pedro +3 more
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A simulation algorithm for SAR echoes with targets in non‐uniform backgrounds
Electronics Letters, Volume 60, Issue 18, September 2024.Abstract This article introduces a high‐precision SAR echo simulation method aimed at providing a large‐scale SAR echo simulation algorithm that includes complex target information. This method independently simulates targets and ground clutter, calculating the shadow areas of targets and the dihedral effects between targets and the ground by ...
Zhiyong Song +2 more
wiley +1 more source
Programación Matemática y Software, 2009 La antena pentagonal se diseña considerando su equivalencia en área a una antena de parche circular para la frecuencia de operación de GPS (Sistema de Posicionamiento Global, por sus siglas en inglés).
Margarita Tecpoyotl Torres +5 more
doaj
IET Power Electronics, Volume 17, Issue 12, Page 1567-1582, 16 September 2024.This study investigates the common mode (CM) driving sources of a regular Buck converter in depth, derives the approximate analytical formulas for far field radiation of horizontal power cables, and realizes the accurate prediction of far field CM radiation based on the CM voltage mutation method. Abstract In the field of electromagnetic compatibility (
Junping He +4 more
wiley +1 more source
Human Exposure to Wireless Power Transmitter over Real Ground
Journal of Communications Software and SystemsThe paper undertakes a comparative examination between a novel analytical methodology and a conventional numerical technique to analyze human exposure to electromagnetic fields emitted by a vertically positioned, electrically short antenna over a real ...
Petra Rašić +3 more
doaj +1 more source
IEEE Access, 2018 This paper presents a fast and efficient method that combines physical optics with physical optics to solve the composite scattering problem of a coated object above 3-D random rough surfaces.
Ke Li, Lixin Guo, Juan Li, Shuirong Chai
doaj +1 more source
IET Power Electronics, Volume 17, Issue 12, Page 1552-1566, 16 September 2024.Based on the CM excitation voltage spectrum measurement and the electromagnetic‐simulated radiation transfer functions, an accurate prediction of the radiated emissions of a low‐power flyback adapter with complex cables is achieved. Abstract Radiated emissions (RE) testing has long been a challenge in the development of a switched mode power supply ...
Junping He +4 more
wiley +1 more source
Energies, 2020 The large-scale deployment of sensor nodes in difficult-to-reach locations makes powering of sensor nodes via batteries impractical. Besides, battery-powered WSNs require the periodic replacement of batteries.
Timothy Miller +3 more
doaj +1 more source
Phase-only Synthesis Algorithm for Transmitarrays and Dielectric Lenses [PDF]
, 2018 In this work a phase-only synthesis algorithm is applied for the design of lens-array antennas yielding a desired radiation pattern. The potential relevance of spillover effect on the lens radiation pattern is illustrated, making it necessary to include ...
Fernández Robledo, Omar +3 more
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