Vallecchi, A. orcid.org/0000-0003-1458-1478, Langley, R. orcid.org/0000-0002-5950-5674 and Schuchinsky, A. (2017) Bi-State Frequency Selective Surfaces Made of Intertwined Slot Arrays. IEEE Transactions on Antennas and Propagation. ISSN 0018-926X
Abstract
Novel arrangements of active frequency selective surfaces (AFSSs) with integrated voltage control wiring are proposed for bi-state (transparency/reflectance) operation at specified frequencies. The AFSSs are comprised of passive arrays of intertwined patterns of slots in a conductor screen and an active dipole array with pin diodes placed either on the same or opposite sides of a thin dielectric substrate. Simulation and measurement results show that such AFSSs exhibit good isolation (~ 15 dB) between the translucency and reflection states at normal incidence that slightly decreases at oblique incidence. The proposed AFSSs maintain the high angular and polarisation stability over broad fractional bandwidths (FBWs) inherent to the constituent periodic arrays of intertwined conductor patterns with substantially subwavelength unit cells. The merits of these AFSS arrangements also include resilience to parasitic effects of real switches, whose insertion loss in the on-state only enhances the AFSS on/off isolation. Such AFSSs are essential elements for reconfiguring and controlling the electromagnetic architecture of buildings.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works. Reproduced in accordance with the publisher's self-archiving policy. |
Keywords: | Periodic structures; active frequency selective surfaces; pin diodes; convoluted conductor pattern; subwavelength resonance |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield) |
Funding Information: | Funder Grant number EUROPEAN COMMISSION - FP6/FP7 WIFEEB - 286333 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 17 May 2017 14:52 |
Last Modified: | 04 Jul 2018 14:51 |
Published Version: | https://doi.org/10.1109/TAP.2017.2689025 |
Status: | Published |
Publisher: | Institute of Electrical and Electronics Engineers |
Refereed: | Yes |
Identification Number: | 10.1109/TAP.2017.2689025 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:116535 |