Decoupling of Two Closely Located Dipoles by a Single Passive Scatterer for Ultra-High Field MRI

Masoud Sharifian Mazraeh Mollaei; Sergei A. Kurdjumov; Anna A. Hurshkainen; Constantin R. Simovski

doi:10.2528/PIER18101703

Decoupling of Two Closely Located Dipoles by a Single Passive Scatterer for Ultra-High Field MRI

Masoud Sharifian Mazraeh Mollaei^*
, Sergei A. Kurdjumov
, Anna A. Hurshkainen
, Constantin R. Simovski

^*Tämän työn vastaava kirjoittaja

St. Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO)

Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

3 Sitaatiot (Scopus)

147 Lataukset (Pure)

Abstrakti

We report decoupling of two closely located resonant dipole antennas dedicated for ultra-high field magnetic resonance imaging (MRI). We show that a scatterer slightly raised over the plane of antennas grants a sufficient decoupling even for antennas separated by very small gap (below 1/30 of the wavelength). We compare the operations of two decoupling scatterers. One of them is a shortcut resonant dipole, and the other is a split-loop resonator (SLR). Previously, we have shown that the SLR offers a wider operational band than the dipole and the same level of decoupling. However, it was so for an array in free space. The presence of the body phantom drastically changes the decoupling conditions. Moreover, the requirement to minimize the parasitic scattering from the decoupling element into the body makes the decoupling dipole much more advantageous than the SLR.

Alkuperäiskieli	Englanti
Sivut	155-166
Sivumäärä	12
Julkaisu	Progress In Electromagnetics Research PIER
Vuosikerta	164
DOI - pysyväislinkit	https://doi.org/10.2528/PIER18101703
Tila	Julkaistu - 2019
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Rahoitus

Experiments were supported by the Russian Science Foundation (Project No. 18-19-00482). Theoretical studies were supported by the European Union's Horizon 2020 research and innovation program under grant agreement No. 736937.

Pääsy asiakirjaan

10.2528/PIER18101703

ELEC_Mollaei_Decoupling_of_two_closely_PIERSFinal published version, 748 KB

M-CUBE: MetaMaterials antenna for ultra-high field MRI
Simovski, K. (Vastuullinen johtaja), Lezhennikova, K. (Projektin jäsen), Sharifian Mazraehmollaei, M. (Projektin jäsen), Heydarian, R. (Projektin jäsen) & Omelyanovich, M. (Projektin jäsen)
01/01/2017 → 31/03/2021
Projekti: EU: Framework programmes funding

Siteeraa tätä

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Decoupling of Two Closely Located Dipoles by a Single Passive Scatterer for Ultra-High Field MRI

Abstrakti

Rahoitus

Pääsy asiakirjaan

Sormenjälki

Projektit

M-CUBE: MetaMaterials antenna for ultra-high field MRI

Siteeraa tätä