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This article is cited in 9 scientific papers (total in 9 papers)
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.
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
Linking options:
https://www.mathnet.ru/eng/jetpl5824 https://www.mathnet.ru/eng/jetpl/v109/i4/p224
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Abstract page: | 156 | Full-text PDF : | 8 | References: | 27 | First page: | 10 |
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