Microwave seminar | 06 February 2025

Magnetic resonance imaging (MRI) is a crucial tool for medical visualization. In many cases, performing a scanning procedure requires the use of additional equipment (for example, local radio-frequency coils), which can be powered by wires as well as via wireless power transfer (WPT) or wireless energy harvesting. In the present talk, we will discuss three related concepts for wireless power transmission in MRI. The first one is energy harvesting, which relies on converting the energy carried by the radio-frequency MRI field without the need for additional transmitters. The second approach is a scheme for WPT that uses a higher-order mode of the birdcage coil of an MRI scanner for energy transmission. In contrast to the existing WPT solutions, this approach does not require additional transmitting coils as well. The third concept is based on the application of a detuned birdcage coil for wireless power transfer during the receive phase within an MRI scanner. This approach allows energy to be transmitted for much longer period compared to the second concept relying on a tuned birdcage coil.

Main paper/arXiv, related to the seminar, and other references, up to 5

1. Oleg I. Burmistrov, Nikita V. Mikhailov, Dmitriy S. Dashkevich, Pavel S. Seregin, and Nikita A. Olekhno, Wireless power transfer in magnetic resonance imaging at a higher-order mode of a birdcage coil, Physical Review Applied 21, 014047 (2024)
2. Pavel S. Seregin, Oleg I. Burmistrov, Georgiy A. Solomakha, Egor I. Kretov, Nikita A. Olekhno, and Alexey P. Slobozhanyuk, Energy-Harvesting Coil for Circularly Polarized Fields in Magnetic Resonance Imaging, Physical Review Applied 17, 044014 (2022)
3. Oleg I. Burmistrov and Nikita A. Olekhno, Wireless power transfer in magnetic resonance imaging with a detuned birdcage coil, St. Petersburg State Polytechnical University Journal. Physics and Mathematics 17(3.1), 354–357 (2024)

Main paper/arXiv, related to the seminar, and other references, up to 5

Balafendiev, R., Simovski, C., Millar, A. J., & Belov, P. (2022). Wire metamaterial filled metallic
resonators. Physical Review B, 106, 75106. LINK doi:10.1103/PhysRevB.106.075106

Millar, A. J., Anlage, S. M., Balafendiev, R., Belov, P., van Bibber, K., Conrad, J., . . . Marvinney, C.
(2023). Searching for dark matter with plasma haloscopes. Phys. Rev. D, 107, 055013.
LINK doi:10.1103/PhysRevD.107.055013

Kowitt, N., Balafendiev, R., Sun, D., Wooten, M., Droster, A., Gorlach, M. A., . . . Belov, P. A. (2023).
Tunable wire metamaterials for an axion haloscope. Phys. Rev. Appl., 20, 044051.
LINK doi:10.1103/PhysRevApplied.20.044051

Sakhno, D., Balafendiev, R., & Belov, P. A. (2024). Anisotropy in a wire medium resulting from the
rectangularity of a unit cell. Phys. Rev. B, 110, L140303. LINK doi:10.1103/PhysRevB.110.L140303