Journal of Radio Electronics. eISSN 1684-1719. 2023. №12
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Full text in Russian (pdf)

DOI: https://doi.org/10.30898/1684-1719.2023.12.3

Multielectrode microantennas
for spin waves excitation integrated
with a ferrite waveguide

Yu.V. Khivintsev, V.K. Sakharov, A.V. Kozhevnikov, S.L. Vysotskii, Yu.A. Filimonov

Saratov Branch of Kotelnikov IRE RAS

410019, Saratov, Zelenaya St., 38

The paper was received November 29, 2023.

Abstract. Multielectrode microantennas for spin waves integrated with a ferrite waveguide – yttrium iron garnet film – were fabricated and tested. Microantennas of two types were studied: with a parallel connection of conductors – “grating” and with a serial connection of conductors – “meander”. The performance of such microantennas for excitation of magnetostatic surface and backward volumec waves tens of micrometers in length has been demonstrated. It has been shown that for waves with a length of tens of micrometers, high (tens of megahertz) excitation selectivity can be achieved using the “grating” microantennas. Whereas, using the “meander” microantennas for the same wavelength range, it is possible not only to get selectivity, but also to significantly (up to 10 dB) increase the excitation efficiency compared to the microantenna with a single conductor. It is noted that the use of such microantennas for shorter spin waves can be hampered by the mutual influence of microwave fields from neighboring conductors, as well as the increasing role of ohmic losses in conductors.

Key words: spin waves, excitation of spin waves, multielectrode antennas for spin waves, yttrium iron garnet films.

Financing: The work was carried out within the framework of the state task “Spintronics” (FFWZ-2022-0009).

Corresponding author: Khivintsev Yuri Vladimirovich, khivintsev@gmail.com

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For citation:

Khivintsev Yu.V., Sakharov V.K., Kozhevnikov A.V., Vysotskii S.L., Filimonov Yu.A. Multielectrode microantennas for spin waves excitation integrated with a ferrite waveguide. // Journal of Radio Electronics. – 2023. – №. 12. https://doi.org/10.30898/1684-1719.2023.12.3 (In Russian)