Abstract
A method for selective control of multiband filtering of microwaves in the 3–6 GHz range has been proposed and tested. It is based on the use of a metastructure as one of the reflectors of a Fabry–Perot cavity of a modified h-plane waveguide-tee interferometer. The metastructure consists of an array of linear resonant wires in combination with an orthogonally and asymmetrically located copper strip with a break, loaded with a control element (varactor or fixed capacitance). The possibility of selective frequency and depth control of the interference stop-band in a three-band Fabry–Perot cavity and a modified seven-band tee interferometer has been discovered. The retuning of the cavity and interferometer bands is shown to be associated with the influence of resonance in a metastructure and occurs when the resonance frequency in the metastructure approaches the corresponding interference fringe.
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Funding
The study was supported a part of a state assignment of the Kotelnikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences on topic 0030-2019-0014.
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Translated by G. Dedkov
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Kraftmakher, G.A., Butylkin, V.S., Kazantsev, Y.N. et al. Interferogram Control in a Meta-Interferometer with a Metastructure of Linear Wires as a Reflector of a Fabry–Perot Cavity. J. Commun. Technol. Electron. 66, 1–13 (2021). https://doi.org/10.1134/S1064226921010058
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DOI: https://doi.org/10.1134/S1064226921010058