A Novel Design of a Low-loss and Low-cost Ku-Band Bandpass Filter for VSAT Applications

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dc.contributor.authorTa, M. V.
dc.contributor.authorPhuong, K. K.
dc.contributor.authorTrong, N. D.
dc.contributor.authorLinh, N. T.
dc.contributor.authorHuong, T. T. T.
dc.contributor.authorHung, N. T.
dc.contributor.authorManh, L. D.
dc.coverage.issue3cs
dc.coverage.volume34cs
dc.date.accessioned2025-07-24T12:38:40Z
dc.date.available2025-07-24T12:38:40Z
dc.date.issued2025-09cs
dc.description.abstractThis paper proposes a novel method to design low-loss and low-cost Ku-band bandpass filters for VSAT applications based on substrate-integrated-waveguide technology. Narrow bandpass filters employed high-order resonant mode TE301 exhibited high selectivity. However, its bandwidth is not enough for VSAT applications. In this paper, we proposed a method to widen the bandwidth of narrow-band filters to meet the bandwidth requirement of VSAT applications. This approach maintains high selectivity while still achieves low insertion loss. The proposed filter was fabricated using a low-cost material. Measurement shows a good agreement with simulated results. Mid-band measured insertion loss and return loss were -1.8 dB and -19.4 dB, respectively. Such low losses were obtained owing to taking advantage of a high-quality factor of high-order mode TE301 of oversized rectangular cavitiesen
dc.formattextcs
dc.format.extent445-451cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2025 vol. 34, č. 3, s. 445-451. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2025.0445en
dc.identifier.issn1210-2512
dc.identifier.urihttps://hdl.handle.net/11012/255215
dc.language.isoencs
dc.publisherRadioengineering Societycs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttps://www.radioeng.cz/fulltexts/2025/25_03_0445_0451.pdfcs
dc.rightsCreative Commons Attribution 4.0 International licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectHigh/low order mode couplingen
dc.subjectsubstrate integrated waveguideen
dc.subjectfractional bandwidth (FBW)en
dc.titleA Novel Design of a Low-loss and Low-cost Ku-Band Bandpass Filter for VSAT Applicationsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta elektrotechniky a komunikačních technologiícs
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