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Coaxial narrowband filters using a versatile suspended resonator
IGNACIO LLAMAS GARRO
ALONSO CORONA CHAVEZ
Acceso Abierto
Atribución-NoComercial-SinDerivadas
In this paper, two four-pole filters at X-band are presented, both designs use a coaxial quarter wavelength resonator suspended in air by short circuits between the coaxial center and outer conductor. Different couplings between suspended resonators have been used to obtain a Chebyshev and a quasi-elliptic response. The Chebyshev filter was designed to have a 9.2 GHz centre frequency with a 4% fractional bandwidth. The second design is a quasi-elliptic filter composed of two vertically stacked rectangular coaxial lines, where one pair of resonators is placed on the lower coaxial line and another pair is located on the upper line. Coupling between coaxial lines is achieved through an iris in the common coaxial ground plane. The quasi-elliptic filter has been designed to have a centre frequency of 9.1 GHz with a 4% fractional bandwidth. Two transmission zeros located at the sides of the passband have been successfully achieved with the proposed filter topology. Experimental results for both designs are presented, where a good agreement with simulations has been obtained.
Progress In Electromagnetics Research
2011
Artículo
Inglés
Estudiantes
Investigadores
Público en general
Jaimes-Vera, A., et al., (2011). Coaxial narrowband filters using a versatile suspended resonator, Progress In Electromagnetics Research, Vol. (115): 79-94
ELECTRÓNICA
Versión aceptada
acceptedVersion - Versión aceptada
Aparece en las colecciones: Artículos de Electrónica

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