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Pis'ma v Zh. Èksper. Teoret. Fiz., 2019, Volume 109, Issue 4, Pages 224–230 (Mi jetpl5824)  

OPTICS AND NUCLEAR PHYSICS

Magnetically and electrically controlled microwave interference pattern in a meta-interferometer

G. A. Kraftmakher, V. S. Butylkin, Yu. N. Kazantsev, V. P. Mal'tsev

Kotelnikov Institute of Radioengineering and Electronics, Russian Academy of Sciences, Moscow, Russia

Abstract: A specific selective effect of ferromagnetic and dipole resonances on an interference pattern in the range of $3$$6$ GHz has been detected experimentally for the first time in a modified interferometer based on a waveguide T junction with a metastructure consisting of a ferrite plate and varactor-loaded dipole or ring conducting elements as a controlled beam splitter. A dependence of the shape, width, intensity, and frequency of an interference band on the magnitude and sign of a static magnetic field $H$, the relative position of ferromagnetic resonance and band, and the electric voltage $V_{\mathrm{DC}}$ on varactor diodes has been observed. The nonreciprocity of microwave transmission in interference stop bands characterized by change in the transmission coefficient $T$ at the inversion of $H$ has been revealed. Nonreciprocity increases at the excitation of ferromagnetic resonance near a band. In this case, a jump of $T$ by two orders of magnitude to a level of a passband is observed with the reversal of the magnetic field $H$. The sign of nonreciprocity depends on the relative position of ferromagnetic resonance and the stop band and can change at a small variation of the magnitude of $H$. The selectively controlled narrowing of the nonreciprocal band by several times, as well as the shift by $0.2$ GHz, is observed with the variation of $V_{\mathrm{DC}}$ in the range of $0$$10$ V.

DOI: https://doi.org/10.1134/S0370274X19040040

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English version:
Journal of Experimental and Theoretical Physics Letters, 2019, 109:4, 232–238

Bibliographic databases:

Received: 09.11.2018
Revised: 03.12.2018
Accepted:11.12.2018

Citation: G. A. Kraftmakher, V. S. Butylkin, Yu. N. Kazantsev, V. P. Mal'tsev, “Magnetically and electrically controlled microwave interference pattern in a meta-interferometer”, Pis'ma v Zh. Èksper. Teoret. Fiz., 109:4 (2019), 224–230; JETP Letters, 109:4 (2019), 232–238

Citation in format AMSBIB
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\paper Magnetically and electrically controlled microwave interference pattern in a meta-interferometer
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
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\vol 109
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\pages 224--230
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