Design and Performance of a High-Q Narrow Bandwidth Bandpass Filter in Empty Substrate Integrated Coaxial Line at Ku-Band
This paper presents the design and performance of a planar narrow bandwidth bandpass filter with high quality factor. The structure is composed of an empty substrate integrated coaxial line with the center conductor suspended in air. The component dimensions have been calculated by means of classica...
| Autores: | , , , |
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| Tipo de documento: | artigo |
| Data de publicação: | 2017 |
| País: | España |
| Recursos: | Universidad de Castilla-La Mancha |
| Repositório: | RUIdeRA. Repositorio Institucional de la UCLM |
| OAI Identifier: | oai:ruidera.uclm.es:10578/17898 |
| Acesso em linha: | http://hdl.handle.net/10578/17898 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Empty substrate integrated coaxial line (ESICL) Empty substrate integrated waveguide (ESIW) Substrate integrated waveguide (SIW) |
| Resumo: | This paper presents the design and performance of a planar narrow bandwidth bandpass filter with high quality factor. The structure is composed of an empty substrate integrated coaxial line with the center conductor suspended in air. The component dimensions have been calculated by means of classical microwave filter design theory. The filter has been manufactured using standard printed circuit board fabrication processes. A measured insertion loss of 1.59 dB, 2.93% fractional bandwidth and Q-factor of 1505 have been obtained at 15 GHz. A Q-factor comparison with other substrate and empty substrate integrated technologies shows the advantages of the solution considered in this work. The proposed filter proves to be suitable for the implementation of integrated microwave or millimeterwave subsystems with severe restrictions, i.e. low in-band losses, very narrow bandpass responses, low frequency dispersion, high out-of-band rejection and low manufacturing cost. |
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