Abstract
Frequency dependences of polarization transformation of the microwave radiation after its passing through a 2D periodic structure along three crystallographic directions is experimentally measured. It is shown that over all three directions the initial linear polarization holds on but nonmonotonically rotates with peaks at certain resonance frequency, which is due to the geometric asymmetry of the periodic structure. It is established for the first time that the polarization of the radiation that passes through the 2D structure along the [110] direction sharply rotates by an angle of up to 70°. It is shown that the external magnetic field allows the polarization rotation to be controlled by shifting the frequency dependence of the polarization rotation angle to the region of low frequencies with a coefficient of ≈3 GHz/T.
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Translated by M. Potapov
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Golovanov, V.I., Shipilov, K.F. Rotation of Microwave Radiation Polarization in a 2D Periodic Structure. Phys. Wave Phen. 29, 244–248 (2021). https://doi.org/10.3103/S1541308X21030055
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DOI: https://doi.org/10.3103/S1541308X21030055