Diseño de líneas microcinta para su aplicación en la medición de permitividad de tejidos de fibra de vidrio
In PCB technology, the characteristics of the materials with which they are built are determining factors in determining the electrical properties that the circuits designed on them will perceive. It has found some factors of greater influence in the change of the electrical properties of the dielec...
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| Tipo de recurso: | tesis de maestría |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2018 |
| País: | México |
| Institución: | Instituto Nacional de Astrofísica, Óptica y Electrónica |
| Repositorio: | Repositorio Institucional del INAOE |
| Idioma: | español |
| OAI Identifier: | oai:inaoe.repositorioinstitucional.mx:1009/1332 |
| Acceso en línea: | http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/1332 |
| Access Level: | acceso abierto |
| Palabra clave: | info:eu-repo/classification/Inspec/Micro-tape lines info:eu-repo/classification/Inspec/Test vehicle info:eu-repo/classification/Inspec/Permitivity info:eu-repo/classification/Inspec/Parameters S info:eu-repo/classification/Inspec/Fiber glass info:eu-repo/classification/Inspec/PCB info:eu-repo/classification/cti/1 info:eu-repo/classification/cti/22 info:eu-repo/classification/cti/2203 |
| Sumario: | In PCB technology, the characteristics of the materials with which they are built are determining factors in determining the electrical properties that the circuits designed on them will perceive. It has found some factors of greater influence in the change of the electrical properties of the dielectrics, it is caused by the lack of homogeneity and that at high frequencies the wavelengths become comparable with the dimensions of the fiberglass fabrics. Depending on the materials, there are undesired effects such as resonances, crosstalk and losses that are mostly accentuated when operating at frequencies in the microwave range. The relative permittivity is a characteristic value of the dielectric of great importance for the design of circuits and that varies with respect to the frequency, having the permittivity well defined in the different frequencies, it is possible to obtain in a congruent way with the reality the design parameters of the RF circuits. In this work, the methodology carried out to obtain the effective permittivity of fiberglass fabrics most used in the PCB laminate industry is presented, this was done from a test vehicle based on microstrip type transmission lines, with which, measurements of dispersion parameters are made and the characteristic values of the line are obtained, the influential mechanisms to be considered are identified and finally the relative permittivity of the tissue under test is obtained in a quasi-continuous frequency range up to 20 GHz In order to validate the data obtained through the methodology proposed in this work, the comparison is made with the permittivity of data provided by the manufacturer, whose information is obtained with techniques based on resonant structures and is presented at specific frequencies finds that there is a good correlation between experimental data and those provided by the manufacturer |
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