Design of bandpass transversal filters employing a novel hybrid structure
Autor
Martínez Mendoza, Mónica; Gómez Díaz, Juan Sebastián; Cañete Rebenaque, David; Gómez Tornero, José Luis; Álvarez Melcón , AlejandroGrupo de investigación
Grupo de Electromagnetismo Aplicado a las Telecomunicaciones (GEAT)Área de conocimiento
Teoría de la Señal y las ComunicacionesFecha de publicación
2007-12Editorial
IEEE Microwave Theory and Techniques SocietyCita bibliográfica
MARTÍNEZ MENDOZA, Mónica, GÓMEZ DÍAZ, Juan Sebastián, CAÑETE REBENAQUE, David, GÓMEZ TORNERO, José Luis, ÁLVAREZ MELCÓN, Alejandro. Design of bandpass transversal filters employing a novel hybrid structure. IEEE Transactions on Microwave Theory and Techniques, 55 (12): 2670-2678, Diciembre 2008. ISSN 0018-9480Palabras clave
Filtros de bandaMatriz de acoplamiento
Filtros de resonancia
Técnicas de síntesis
Trasmisiones cero
Filtros transversales
Coupling matrix
Synthesis technique
Transmission zeros
Bandpass filters
Transversal filters
Resonator filters
Resumen
A novel structure for the implementation of compact
transversal bandpass filters is proposed in this paper. This new
proposal consists of a hybrid structure, based on the combination
of two different technologies: the waveguide and microstrip. It is
shown that the novel hybrid microwave filter is able to implement
both a second- and third-order filtering function with up to two
or three transmission zeros, respectively. In this way, a practical
implementation of a fully canonical transversal filter with a third
degree response is for the first time directly achieved. In addition,
the way to control the positions of transmission zeros with the new
technology is treated in this paper. It is shown that symmetric or
asymmetric responses and also filtering functions with a complex
pair of transmission zeros can be easily obtained. To demonstrate
the validity of this novel structure, several implementation examples
are presented. A prototype has been designed, manufactured,
and ...
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