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Mechanically Reconfigurable Waveguide Filter Based on Glide Symmetry at Millimetre‐Wave Bands
Information Processing and Telecommunications Center, Universidad Politécnica de Madrid, 28040 Madrid, Spain.ORCID iD: 0000-0002-2322-3800
Information Processing and Telecommunications Center, Universidad Politécnica de Madrid, 28040 Madrid, Spain.ORCID iD: 0000-0002-9296-4098
KTH, School of Electrical Engineering and Computer Science (EECS), Electrical Engineering, Electromagnetic Engineering.ORCID iD: 0000-0002-4900-4788
2022 (English)In: Sensors, E-ISSN 1424-8220, Vol. 22, no 3, p. 1001-, article id 1001Article in journal (Refereed) Published
Abstract [en]

This paper presents the design and fabrication of a mechanically reconfigurable filter at W band based on the concept of glide symmetry. The tunability is achieved by breaking and regen-erating the glide symmetry. The filters are made of two glide‐symmetric pieces that can be displaced in a certain direction, and therefore, break the symmetry. The high filtering capacity of these designs is demonstrated by simulation and measurement and can also be adjusted mechanically. The transmission level in the manufactured filter varies from a value between −1 and −2 dB when the filter is in the glide symmetry position to values close to −40 dB in the stop‐band when it is in the broken symmetry position. The transmission band obtained in the symmetrical mode is around 20%, but, after breaking the symmetry, it is split into two passbands of 6.5% and 11% separated by a stop-band of 6%. The position, bandwidth, filtering level and filter roll‐off can be adjusted for both modes of operation by appropriately selecting the unit cell design parameters and the number of unit cells.

Place, publisher, year, edition, pages
MDPI AG , 2022. Vol. 22, no 3, p. 1001-, article id 1001
Keywords [en]
Filter, Glide symmetry, Mechanical tenability, Millimetre‐wave, Breakings, Filter-based, Mechanical, Millimeter-wave band, Reconfigurable, Reconfigurable filters, Stopband, Waveguide filters
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-319609DOI: 10.3390/s22031001ISI: 000920100600013PubMedID: 35161744Scopus ID: 2-s2.0-85123383944OAI: oai:DiVA.org:kth-319609DiVA, id: diva2:1701812
Note

QC 20221007

Available from: 2022-10-07 Created: 2022-10-07 Last updated: 2023-09-21Bibliographically approved

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Quevedo-Teruel, Oscar

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Tamayo‐dominguez, A.Fernández‐gonzález, J. -MQuevedo-Teruel, Oscar
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