Metodología de desacople para antenas de parche con aplicación en sistemas de imagenología
Due to the wide use of antenna arrays in microwave imaging systems, it is important to know the interaction of each pair of antennas that conforms them. Therefore, in this thesis, a methodology to decrease the mutual coupling between two patch antennas is proposed. Different decoupling methods are s...
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| Tipo de recurso: | tesis de maestría |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2012 |
| País: | México |
| Institución: | Instituto Nacional de Astrofísica, Óptica y Electrónica |
| Repositorio: | Repositorio Institucional del INAOE |
| Idioma: | español |
| OAI Identifier: | oai:inaoe.repositorioinstitucional.mx:1009/741 |
| Acceso en línea: | http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/741 |
| Access Level: | acceso abierto |
| Palabra clave: | info:eu-repo/classification/Antenna arrays/Antenna arrays info:eu-repo/classification/Antenas de microondas/Microwave antennas info:eu-repo/classification/Microstrip antenna arrays/Microstrip antenna arrays info:eu-repo/classification/Microstrip resonators/Microstrip resonators info:eu-repo/classification/Microstrip imaging/Microstrip imaging info:eu-repo/classification/cti/1 info:eu-repo/classification/cti/22 info:eu-repo/classification/cti/2203 |
| Sumario: | Due to the wide use of antenna arrays in microwave imaging systems, it is important to know the interaction of each pair of antennas that conforms them. Therefore, in this thesis, a methodology to decrease the mutual coupling between two patch antennas is proposed. Different decoupling methods are studied, in order to find an efficient solution to reduce coupling. The proposed methodology is based on the entry of the U-shaped structures to change the sign of the coupling, in the change of the sign, the coupling needs to cross by zero, and so then the minimum coupling has reach. The methodology consists of 8 steps and at the end the decoupling between two patch antennas in microstrip technologies is achieved. Finally, the proposed methodology was tested by means of simulations and experiments. For this, a pair of antennas at 5.2 GHz were designed and fabricated over a RO4003C Rogers substrate. The obtained results were: an increase of 3dB around the peak of radiation between the two antennas, a 59% reduction in the required separation, that finally leads to a 22.6% reduction in the substrate´s area. |
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