Two compact configurations for implementing transmission zeros in microstrip filters

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URI: http://hdl.handle.net/10317/648
ISSN: 1531-1309
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Author
Cañete Rebenaque, David; Quesada Pereira, Fernando Daniel; Pascual García, Juan; Álvarez Melcón , Alejandro; Guglielmi, Marco
Research Group
Grupo de Electromagnetismo Aplicado a las Telecomunicaciones (GEAT)
Knowledge Area
Teoría de la Señal y las Comunicaciones
Sponsors
This work was supported by the Spanish National Projects ESP2001-4546-PE and TIC2000-0591-C03-03, and the Regional Seneca Project 2002, ref. PB/4/FS/02
Publication date
2004-10
Publisher
IEEE Microwave Theory and Techniques Society
Bibliographic Citation
CAÑETE REBENAQUE, David, QUESADA PEREIRA, Fernando Daniel, PASCUAL GARCÍA, Juan, ÁLVAREZ MELCÓN, Alejandro, GUGLIELMI, M. Two compact configurations for implementing transmission zeros in microstrip filters. IEEE Microwave Theory and Wireless Component Letters , 14 (1): 475-477, Octubre 2004. ISSN 1531-1309
Keywords
Ceros de transmisión
Filtros de microcinta
Polos y ceros
Transmission zeros
Microstrip filter
Poles and zeros
Abstract
This contribution presents compact structures for the implementation of transmission zeros using the zero shifting property. First, two open-loop resonators operating at different resonances are employed. Then, one of the open-loop resonators is substituted by a ( 4) short-circuited transmission line, thus resulting into a more compact structure. Properties of these configurations are discussed, and two manufactured prototypes have been sucessfully tested. The results showthe usefullness and validity of the new structures with high rejection capabilities.
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