Design of Dual-Bandpass Hybrid Waveguide-Microstrip Microwave Filters
Autor
Martínez Mendoza, Mónica; Gómez Díaz, Juan Sebastián; Cañete Rebenaque, David; Álvarez Melcón , AlejandroGrupo de investigación
Grupo Electromagnetismo Aplicado a las TelecomunicacionesÁrea de conocimiento
Teoría de la Señal y las ComunicacionesPatrocinadores
Ministerio de Educación y Ciencia, Ref. TEC2007-67630-C03-02Fecha de publicación
2008-12Editorial
IEEE Microwave Theory and Techniques SocietyCita bibliográfica
MARTÍNEZ MENDOZA, Mónica, GÓMEZ DÍAZ, Juan Sebastián, CAÑETE REBENAQUE, David, ÁLVAREZ MELCÓN, Alejandro. Design of Dual-Bandpass Hybrid Waveguide-Microstrip Microwave Filters.IEEE Transactions on Microwave Theory and Techniques, 56 (12): 2913 - 2920 p., Diciembre 2008. ISSN 0018-9480Revisión por pares
SIPalabras clave
Dual-band filtersHybrid waveguide microstrip technology
Microstrip resonators
Microwave filters
Resumen
A simple dual-bandpass filtering structure is pro-
posed. The filter is implemented by means of a new hybrid
waveguidemicrostrip technology. The novelty of the structure
is that it combines two standard printed microstrip coupled line
resonators, with a resonance of the base waveguide cavity, to
implement a dual-band operation. Important aspects about the
filter design, useful for practical applications are treated. This
includes a study on the maximum coupling that can be achieved to
the cavity resonance, and guidelines to control the positions of the
two passbands and the transmission zeros. Besides, an example
has been designed, manufactured and tested. The measurements
on the fabricated prototype have confirmed the validity of the new
structure to perform dual-band operation.
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