Santiago Arriazu, DavidTamayo-Domínguez, AdriánGómez Laso, Miguel ÁngelLopetegui Beregaña, José MaríaFernández-González, José ManuelMartínez, RamónArregui Padilla, Iván2023-01-102023-01-102022Santiago, D., Tamayo-Domínguez, A., Laso, M. A. G., Lopetegi, T., Fernández-González, J.-M., Martínez, R., & Arregui, I. (2022). Robust design of 3d-printed w-band bandpass filters using gap waveguide technology. Journal of Infrared, Millimeter, and Terahertz Waves. https://doi.org/10.1007/s10762-022-00903-01866-689210.1007/s10762-022-00903-0https://academica-e.unavarra.es/handle/2454/44571In this paper, a W-band 3D-printed bandpass filter is proposed. The use of higher-order TE10n modes in groove gap waveguide (GGW) technology is evaluated in order to alleviate the manufacturing requirements. In addition to the use of higher-order modes, the coupling between them is analyzed in detail to improve the overall fabrication robustness of the component. This allows the implementation of narrow-band filters operating at millimeter-wave frequency bands (or above), which usually demand complex manufacturing techniques to provide the high accuracy required for this kind of devices. In order to show the applicability of the proposed method, a narrow-band 5th-order Chebyshev bandpass filter centered at 94 GHz, which can be easily fabricated by state-of-the-art stereolithographic (SLA) 3D-printing techniques followed by silver coating, is shown. Excellent measured performance has been obtained.application/pdfeng© The Author(s) 2022. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.Bandpass filterGroove gap waveguideW-band3D printingArtículo / Artikulua2023-01-10Acceso abierto / Sarbide irekiainfo:eu-repo/semantics/openAccess