Design and implementation of evanescent mode waveguide filters using dielectrics and additive manufacturing techniques
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Pons Abenza, Alejandro; García Barceló, José María; Romera Pérez, Antonio; Álvarez Melcón , Alejandro; Quesada Pereira, Fernando Daniel; [et al.]Área de conocimiento
Teoría de la Señal y las ComunicacionesPatrocinadores
This work has been developed with funding from Thales Alenia Space (Tres Cantos, Madrid, Spain) and has also been financially supported by the Spanish Ministerio de Economía y Competitividad in the frame of the projects Ref. TEC2016-75934-C4-1-R, Ref. TEC2016-75934-C4-4-R and Ref. FPA2016-76978-C3-2-P.Fecha de publicación
2020-03Editorial
ElsevierCita bibliográfica
Alejandro Pons-Abenza, José-María García-Barceló, Antonio Romera-Pérez, Alejandro Alvarez-Melcon, Fernando D. Quesada-Pereira, Juan Hinojosa-Jiménez, Marco Guglielmi, Vicente E. Boria Esbert, Lara Arche-Andradas, Design and implementation of evanescent mode waveguide filters using dielectrics and additive manufacturing techniques, AEU - International Journal of Electronics and Communications, Volume 116, 2020, 153065, ISSN 1434-8411, https://doi.org/10.1016/j.aeue.2020.153065.Revisión por pares
siPalabras clave
3D-printingABSplus
Additive manufacturing
Dielectric resonators
Evanescent mode waveguides
Microwave filters
Selective laser melting
Resumen
In this contribution, we describe the design of bandpass filters using evanescent mode waveguides and
dielectric resonators implemented with additive manufacturing techniques. Two C-band Chebyshev
evanescent mode waveguide filters of order five have been designed using a low cost commercial dielectric
material (ABSplus), widely used by Fused Deposition Modeling (FDM) 3D printers. The housings of
the filters have been manufactured using traditional computer numerical control (CNC) machining techniques.
Practical manufacturing considerations are also discussed, including the integration of dielectric
and metallic parts. We first discuss two breadboards using two different resonator geometries. We then
demonstrate how different transfer functions can be easily implemented by changing the 3D printed
parts in the same metallic housing. Breadboards show fractional bandwidths between 3% and 4.6% with
return losses better than RL ¼ 18 dB, and spurious free ranges of SFR ¼ 1 GHz. Insertion ...
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