This article is cited in 4 papers

Electrically controlled nonreciprocity inversion of microwave transmission in a metastructure based on ferrite and a varactor-loaded dipole

G. A. Kraftmakher^ab, V. S. Butylkin^ab, Yu. N. Kazantsev<sup>ab

a</sup> Kotelnikov Institute of Radioengineering and Electronics of the Russian Academy of Sciences, Moscow
^b Moscow Institute of Physics and Technology (State University), Dolgoprudnyi, Moscow oblast, 141700, Russia

Abstract: A possibility of electrical control of nonreciprocity inversion of microwave propagation when using a metastructure with a ferrite plate and varactor-loaded dipole is demonstrated. In contrast to conven-tional methods, the inversion occurs without ferrite remagnetization. It is reached by varying the constant bias voltage on varactor that enables the tuning of the resonance frequency of dipole to the frequency of ferromagnetic resonance. This effect occurs due to the fact that a magnetic field with elliptical polarization is formed near a dipole as a result of superposition of incident and scattered waves, rotating in one direction below the resonance frequency of dipole and in the opposite direction above the frequency of this resonance.

Received: 04.12.2014

 English version: Technical Physics Letters, 2015, 41:8, 723–726

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