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Este articulo presenta el diseno e implementacion de un filtro pasa banda con dos secciones de stubs en circuito abierto para aplicaciones Ultra wideband – UWB. El filtro que se utilizo inicialmente se basa en un dispositivo con seccion de stubs en corto circuito, y con una aplicacion en algoritmos geneticos (AG) se obtuvieron valores optimizados de impedancias de las secciones, para transformarse en dos secciones de stubs en circuito abierto, que facilita su fabricacion. El diseno del filtro de grado 40 se implemento en lineas microcintas y las respuestas medidas de los parametros de transmision y reflexion mostraron un comportamiento proximo a las respuestas simuladas, es un filtro de tamano reducido, con un gran ancho de banda. Abstract This paper presents the band pass filter using two stub sections in an open circuit configuration, for Ultra Wideband technology applications. Filter is based on a device with a short circuit stub section. Using Genetic Algorithms (AG) theory values were obtained for optimal impedance stub sections, which were used to transform the initial filter in a two section open circuit stub device. Third and fourth degree filters were designed and implemented on a microstrip line technique and their response measurements revealed a very close behavior to the simulated responses.

Desarrollo de filtro pasa banda larga con ceros de transmisión para sistemas de comunicación Ultra-Wideband