Use of the perfect electric conductor boundary conditions to discretize a diffractor in FDTD/PML environment
Fuente:
Redalyc
Enregistré dans:
| Auteur principal: | |
|---|---|
| Format: | Artículo científico |
| Langue: | en |
| Publié: |
Sociedad Mexicana de Física A.C.
2015
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1876437082657783808 |
|---|---|
| author | C. Calderón-Ramón |
| author_facet | C. Calderón-Ramón |
| contents | Use of the perfect electric conductor boundary conditions to discretize a diffractor in FDTD/PML environment C. Calderón-Ramón J. F. Gómez-Aguilar M. Rodríguez-Achach L. J. Morales- Mendoza J. R. Laguna-Camacho M. Benavides-Cruz M. I. Cruz-Orduna M. González-Lee H. Pérez-Meana M. Enciso-Aguilar R. Chávez-Pérez H. Martínez-García Física, Astronomía y Matemáticas diffractor antenna array perfectly matched layers (PML) Conductor electric perfect conditions (PEC) finite difference time domain method (FDTD) In this paper we present a computational electromagnetic simulation of a multiform diffractor placed at the center of an antenna array. Our approach is to solve Maxwell’s differential equations with a discrete space-time formulation, using the Finite Difference Time Domain (FDTD) method. The Perfectly Matched Layers (PML) method is used as an absorbing boundary condition, to prevent further spread of the electromagnetic wave to the outside of the calculation region. The Perfect Electric Conductor (PEC) boundary conditions are used to represent the periphery of the region and the diffractor. The system consists of an antenna array of 20 elements: a transmission antenna (TX1) which feeds a Gaussian pulse with center frequency of 7.5 GHz, and 19 reception antennas (RX1 to RX19), which serve as sensors. The diffractor is discretized for integration into the environment FDTD, and two case studies are presented according to their geometric shape: square and circular diffractor. In this work, the goal is to determine the Maxwell’s equations, analyze all the zones that form the diffractor and plug them in the computational algorithm in Matlab. We show the equations for each case and obtain the electromagnetic parameters of the system: electric fields, magnetic fields, and reflected power, sensed by the RX’s. 2015 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57042599004 en http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.5 Vol.61 |
| format | Artículo científico |
| id | redalyc_57042599004 |
| institution | Redalyc |
| language | en |
| publishDate | 2015 |
| publisher | Sociedad Mexicana de Física A.C. |
| spellingShingle | Use of the perfect electric conductor boundary conditions to discretize a diffractor in FDTD/PML environment C. Calderón-Ramón Física, Astronomía y Matemáticas diffractor antenna array perfectly matched layers (PML) Conductor electric perfect conditions (PEC) finite difference time domain method (FDTD) Use of the perfect electric conductor boundary conditions to discretize a diffractor in FDTD/PML environment C. Calderón-Ramón J. F. Gómez-Aguilar M. Rodríguez-Achach L. J. Morales- Mendoza J. R. Laguna-Camacho M. Benavides-Cruz M. I. Cruz-Orduna M. González-Lee H. Pérez-Meana M. Enciso-Aguilar R. Chávez-Pérez H. Martínez-García Física, Astronomía y Matemáticas diffractor antenna array perfectly matched layers (PML) Conductor electric perfect conditions (PEC) finite difference time domain method (FDTD) In this paper we present a computational electromagnetic simulation of a multiform diffractor placed at the center of an antenna array. Our approach is to solve Maxwell’s differential equations with a discrete space-time formulation, using the Finite Difference Time Domain (FDTD) method. The Perfectly Matched Layers (PML) method is used as an absorbing boundary condition, to prevent further spread of the electromagnetic wave to the outside of the calculation region. The Perfect Electric Conductor (PEC) boundary conditions are used to represent the periphery of the region and the diffractor. The system consists of an antenna array of 20 elements: a transmission antenna (TX1) which feeds a Gaussian pulse with center frequency of 7.5 GHz, and 19 reception antennas (RX1 to RX19), which serve as sensors. The diffractor is discretized for integration into the environment FDTD, and two case studies are presented according to their geometric shape: square and circular diffractor. In this work, the goal is to determine the Maxwell’s equations, analyze all the zones that form the diffractor and plug them in the computational algorithm in Matlab. We show the equations for each case and obtain the electromagnetic parameters of the system: electric fields, magnetic fields, and reflected power, sensed by the RX’s. 2015 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57042599004 en http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.5 Vol.61 |
| title | Use of the perfect electric conductor boundary conditions to discretize a diffractor in FDTD/PML environment |
| topic | Física, Astronomía y Matemáticas diffractor antenna array perfectly matched layers (PML) Conductor electric perfect conditions (PEC) finite difference time domain method (FDTD) |
| url | https://www.redalyc.org/articulo.oa?id=57042599004 |