Zobrazeno 1 - 10
of 1 475
pro vyhledávání: '"Uniform theory of diffraction"'
Autor:
José Lorente-López, José-Víctor Rodríguez, María-Teresa Martínez-Inglés, Jose-Maria Molina Garcia-Pardo, Ignacio Rodríguez-Rodríguez, Leandro Juan-Llácer
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2024, Iss 1, Pp 1-11 (2024)
Abstract This article introduces a uniform theory of diffraction–physical optics (UTD–PO) formulation for analyzing radiowave multiple diffraction emanating from trees and buildings in green urban areas, considering illumination from a low transm
Externí odkaz:
https://doaj.org/article/cc7ceb9166c44314a5998c1f6e5d0f34
Publikováno v:
Acoustics, Vol 6, Iss 1, Pp 219-239 (2024)
The main goal of this research was to design and study the best structure, location, and shape of acoustic diffusers to be fitted on the ceilings of multipurpose auditoriums. Their absorbing properties can enhance the acoustics when installed on high
Externí odkaz:
https://doaj.org/article/cc231d69895f4830b752794c2473973b
Publikováno v:
Results in Physics, Vol 61, Iss , Pp 107712- (2024)
For mutual coupling evaluation between antennas on the platform, present an enhanced algorithm that combines the spherical wave expansion (SWE), the uniform theory of diffraction (UTD), and the reaction theorem to accurately calculate the mutual coup
Externí odkaz:
https://doaj.org/article/ef504045c2ef4cb0871b171123c5e649
Publikováno v:
IEEE Access, Vol 11, Pp 138108-138121 (2023)
As a typical application of intelligent transportation systems (ITS), the electronic toll collection (ETC) system has been widely used on highways due to its excellent toll efficiency. In the actual traffic environment, there usually exists more than
Externí odkaz:
https://doaj.org/article/71b3124eda1846b2a7ff401afe684e5d
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 4, Pp 1103-1115 (2023)
An accurate and fast prediction technique is necessary for the radiation pattern of the reconfigurable intelligent surface (RIS) to quantitatively and efficiently evaluate the performance of RIS. Based on the uniform theory of diffraction (UTD), this
Externí odkaz:
https://doaj.org/article/d7704220905b4a83aec385fcaa9c5f21
Autor:
Jose Lorente-Lopez, Jose-Victor Rodriguez, Fernando Quesada-Pereira, Leandro Juan-Llacer, Ignacio Rodriguez-Rodriguez
Publikováno v:
IEEE Access, Vol 11, Pp 17424-17429 (2023)
Proposing a novel hybrid uniform theory of diffraction-physical optics (UTD-PO) formulation, we develop a method to calculate the E-plane radiation pattern of corrugated E-plane rectangular horn antennas with rectangular corrugations. We derive the t
Externí odkaz:
https://doaj.org/article/8bb5cd6042c44768b3b7d301828c5b4f
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 3, Pp 848-859 (2022)
In this paper we provide a modified 3D Uniform Theory of Diffraction (UTD) model for afinite-length cylinder, and validate the model by comparing to the simulation and the measured data. The presented finite-cylinder UTD model is adapted from the con
Externí odkaz:
https://doaj.org/article/b56c3eb0df364e68b0039552ca91fce8
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Akademický článek
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Publikováno v:
Journal of Microwaves, Optoelectronics and Electromagnetic Applications, Vol 20, Iss 2, Pp 359-371 (2021)
Abstract Irregular terrains covered with forest vegetation represent a challenging scenario for radio planning. A case of particular interest is the one where a forest-covered high hill or mountain is interposed to the link, for which typical diffrac
Externí odkaz:
https://doaj.org/article/b87fc07d27014352b197fa3248f7d471