Design of bandpass elliptic filters employing inductive windows and dielectric objects

In this paper, we propose an alternative configuration for the design of bandpass inductive filters using transversal topologies. The structure is based on the use of a dielectric post asymmetrically placed on a cavity resonator. The input and output windows will couple energy to the TE102- and TE10...

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Detalhes bibliográficos
Autores: Pérez Soler, Francisco J., Martínez Mendoza, Mónica, Quesada Pereira, Fernando Daniel, Cañete Rebenaque, David, Melcón Álvarez, Alejandro, Cameron, Richard J.
Tipo de documento: artigo
Data de publicação:2007
País:España
Recursos:Universidad Politécnica de Cartagena(UPCT)
Repositório:Repositorio Digital UPCT
OAI Identifier:oai:repositorio.upct.es:10317/643
Acesso em linha:http://hdl.handle.net/10317/643
Access Level:Acceso aberto
Palavra-chave:Puesto dieléctrico
Tipología doble
Filtros inductivos
Transmisión cero
Filtros transversales
Filtros de guía de onda
Dielectric posts
Doublet topology
Inductive filters
Transmission zero
Transversal filter
Waveguide filter
Teoría de la Señal y las Comunicaciones
Descrição
Resumo:In this paper, we propose an alternative configuration for the design of bandpass inductive filters using transversal topologies. The structure is based on the use of a dielectric post asymmetrically placed on a cavity resonator. The input and output windows will couple energy to the TE102- and TE103-mode resonators at the same time, therefore obtaining the transversal topology. The proposed configuration is very compact, and allows to implement transmission zeros for maximum selectivity in an easy way. Results are validated with Ansoft’s finite-element High Frequency Structure Simulator tool, and with an integral-equation technique to demonstrate the validity of the proposed structure.