Broadside Couplings for High Selectivity Microstrip Filters

This paper describes a number of broadside-coupled microstrip structures and their use for the implementation of high-selectivity multilayered filters. The broadside configuration allows for the introduction of cross couplings between nonadjacent resonators. The cross cou- plings can then be used to...

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Detalles Bibliográficos
Autores: Melcón Álvarez, Alejandro, Mosig, Juan Ramón, Guglielmi, Marco
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2001
País:España
Institución:Universidad Politécnica de Cartagena(UPCT)
Repositorio:Repositorio Digital UPCT
OAI Identifier:oai:repositorio.upct.es:10317/3280
Acceso en línea:http://hdl.handle.net/10317/3280
Access Level:acceso abierto
Palabra clave:Microwave filters
Integral equations
Multilayered circuits
Broadside couplings
Teoría de la Señal y las Comunicaciones
Descripción
Sumario:This paper describes a number of broadside-coupled microstrip structures and their use for the implementation of high-selectivity multilayered filters. The broadside configuration allows for the introduction of cross couplings between nonadjacent resonators. The cross cou- plings can then be used to implement transmission zeros that can significantly increase the selectivity of the filters. Furthermore, the investigation shows that the amount of coupling can be considerably increased if the resonators are broadside coupled, thus easily allowing the implementation of broadband filters. Measured results are shown to agree with predictions, thereby fully Validating the new structures described.