Open AccessNear field analysis and field transformation applied to a parabolic profile at 5GHz
Author(s) -
Sergio Peña Ruíz,
Jorge SosaPedroza,
Fabiola Martínez-Zúñiga,
Abimael Rodríguez,
E. Garduño-Nolasco,
M. Enciso-Aguilar
Publication year - 2019
Publication title -
revista mexicana de física
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.181
H-Index - 25
eISSN - 2683-2224
pISSN - 0035-001X
DOI - 10.31349/revmexfis.65.268
Subject(s) - finite difference time domain method , field (mathematics) , transformation (genetics) , parabolic reflector , radiation pattern , antenna (radio) , mathematical analysis , electromagnetic field , physics , reflector (photography) , near and far field , parabolic antenna , microwave , radiation , optics , computational physics , mathematics , computer science , telecommunications , quantum mechanics , pure mathematics , gene , light source , biochemistry , chemistry
We proposed a method of analysis and field transformation is applied to a 1.5 m diameter parabolic reflector at a frequency of 5 GHz, an antenna of these dimensions requires at least a 75 m region to obtain its radiation pattern, and this represents a problem, here arises the necessity to make field transformations like the one presented in this work. Near field is modeled by means of Finite Difference Time Domain Method (FDTD) and current distribution is obtained using the discrete Pocklington equation. Radiation pattern is calculated applying the array factor for parabolic profiles. Results are compared with those obtained by CST Microwave Studio with a very good agreement.
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