Low-Loss and Dual-Band Filter Inspired by Glide Symmetry Principle Over Millimeter-Wave Spectrum for 5G Cellular Networks

Karamirad, Mohsen; Pouyanfar, Negin; Alibakhshikenari, Mohammad; Ghobadi, Changiz; Nourinia, Javad; See, Chan Hwang; Falcone, Francisco

Abstract

This paper focuses on designing a dual-band, bandpass filter configuration inspired by glide-symmetric structures in a single plane. Geometry configuration of elliptical slots on both sides of single substrate generally affects electromagnetic fields as well as rejection bands. Easy fabrication with misalignment avoidance during assembly procedure unlike conventional structures based on gap waveguide technology, make them appropriate to use in electromagnetic devices. Parametric study on dispersion characteristics is carried out in this article to find out how rejection-bands are offered through breaking the symmetry. A method for producing symmetry is also suggested, which may be helpful for reconfigurable devices. Moreover, equivalent circuit model is demonstrated to get insight of the mechanism of the presented glide symmetry scheme. The transmission frequency ranges of two passbands with center frequencies of 19.74 GHz and 28.233 GHz are shown by the measured and calculated S- parameters of five unit-cell structures.

Citation

Karamirad, M., Pouyanfar, N., Alibakhshikenari, M., Ghobadi, C., Nourinia, J., See, C. H., & Falcone, F. (2023). Low-Loss and Dual-Band Filter Inspired by Glide Symmetry Principle Over Millimeter-Wave Spectrum for 5G Cellular Networks. iScience, 26(1), Article 105899. https://doi.org/10.1016/j.isci.2022.105899

• Journal Article Type: Article
• Acceptance Date: Dec 22, 2022
• Publication Date: Jan 20, 2023
• Deposit Date: Nov 12, 2022
• Publicly Available Date: Jan 30, 2023
• Electronic ISSN: 2589-0042
• Publisher: Cell Press
• Peer Reviewed: Peer Reviewed
• Volume: 26
• Issue: 1
• Article Number: 105899
• DOI: https://doi.org/10.1016/j.isci.2022.105899
• Keywords: Applied sciences, Broadband communication, Network
• Public URL: http://researchrepository.napier.ac.uk/Output/2952875