Novel compact microstrip bandstop filters at microwave frequencies
Microwave Filters are essential components in the communications industry and are fundamental elements in wireless and satellite technology. The need of filters has become more apparent as spectrum crowding increases with the development of new systems. In this thesis, novel compact microstrip reson...
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| Tipo de recurso: | tesis de maestría |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2007 |
| País: | México |
| Institución: | Instituto Nacional de Astrofísica, Óptica y Electrónica |
| Repositorio: | Repositorio Institucional del INAOE |
| Idioma: | inglés |
| OAI Identifier: | oai:inaoe.repositorioinstitucional.mx:1009/625 |
| Acceso en línea: | http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/625 |
| Access Level: | acceso abierto |
| Palabra clave: | info:eu-repo/classification/Filtros de microondas/Microwave filters info:eu-repo/classification/Filtros de parada de banda/Band-stop filters info:eu-repo/classification/Filtros microstrip/Microstrip filters info:eu-repo/classification/Micromining/Micromachining info:eu-repo/classification/cti/1 info:eu-repo/classification/cti/22 info:eu-repo/classification/cti/2203 info:eu-repo/classification/cti/330708 |
| Sumario: | Microwave Filters are essential components in the communications industry and are fundamental elements in wireless and satellite technology. The need of filters has become more apparent as spectrum crowding increases with the development of new systems. In this thesis, novel compact microstrip resonators and bandstop filters configuration have been proposed for narrow band applications such as, wireless communication and satellite systems at 1.5 GHz and 10 GHz. At 1.5 GHz, several novel microstrip resonators have been proposed and at this frequency successfully obtained the ultra compact size of the resonator from conventional resonator. At this frequency, Chebyshev bandstop filters have been designed using proposed resonators and experimentally measured. The first filter consists of a 3 pole Chebyshev bandstop filter at 1.5 GHz using T-shape straight resonators. The second type of structure is 3 poles Chebyshev bandstop filter using ultra compact meandered T-shape resonators. Also at 1.5GHz a novel Trisection bandstop filter with an extra transmission zero have been proposed with narrow bandwidth, this work is unique as this topic is not known to have been presented anywhere else in the review literature. At 10 GHz novel compact high-Q (quality factor) microstrip resonators have been explored with application such as wireless and satellite communication. These resonators use micromachining technology to remove selective parts of the substrate to increase the quality factor and hence filter performance. Also, miniaturization techniques were applied to decrease the overall resonator size. The full design procedure and simulation results are presented of several resonators and Chebyshev filter, along with experimental results of fabricated resonators on HR-Si. |
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