Abstract
In this paper, a new application of dipole and chiral elements and structures based on them as one of the reflectors of a Fabry–Perot resonator located in the meta-interferometer is presented. It is experimentally shown that this application allows controlling multichannel microwave filtration in the range of 3–6 GHz. The influence of controlled resonance effects in the elements on the resonator spectrum and interferogram dynamics is demonstrated. The features related to the application of different elements and structures are studied: a “butterfly” dipole loaded with a varactor or stationary butterfly capacitor, a row of three single rings with two gaps loaded with two varactors, and arrays of spiral elements with 1.5 turns and double split rings. The theoretical study was carried out on an example of a meta-interferometer with a meta-structure in the form of a bianisotropic waveguide layer accounting for the possibility of implementing both direct wave and back wave modes.
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