Design of bandpass elliptic filters employing inductive windows and dielectric objects
Author
Pérez Soler, Francisco J.; Martínez Mendoza, Mónica; Quesada Pereira, Fernando Daniel; Cañete Rebenaque, David; Álvarez Melcón , Alejandro; [et al.]Research Group
Grupo de Electromagnetismo Aplicado a las Telecomunicaciones (GEAT)Knowledge Area
Teoría de la Señal y las ComunicacionesSponsors
This work was supported by the Comisión Interministerial de Ciencia y Tecnología under Spanish National Project TEC2004-04313-C02-02/TCM and under the Regional Seneca Project 02972/PI/05.Publication date
2007-11Publisher
IEEE Microwave Theory and Techniques SocietyBibliographic Citation
PÉREZ SOLER, Francisco Javier, MARTÍNEZ MENDOZA, Mónica, QUESADA PEREIRA, Fernando Daniel, CAÑETE REBENAQUE, David, ÁLVAREZ MELCÓN, Alejandro, CAMERON, Richard J. Design of bandpass elliptic filters employing inductive windows and dielectric objects. IEEE Transactions on Microwave Theory and Techniques, 55 (11): 2393-2398, Noviembre 2007. ISSN 0018-9480Keywords
Puesto dieléctricoTipología doble
Filtros inductivos
Transmisión cero
Filtros transversales
Filtros de guía de onda
Dielectric posts
Doublet topology
Inductive filters
Transmission zero
Transversal filter
Waveguide filter
Abstract
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.
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