Q-factor evaluations of a zeroth-order resonant antenna with a loading independent operation frequency

In: ESMRMB Congress 2011; 28th Annual Scientific Meeting. October 6-8, 2011, Leipzig/DE; Book of Abstracts (MAGMA vol. 24, Supplement 1)
Berlin (u.a.): Springer (2011), pp. 505-506
Buchaufsatz / Kapitel / Fach: Elektrotechnik
Fakultät für Ingenieurwissenschaften
MRI requires high-Q resonators as RF-antennas generating a homogeneous B1-field. The antenna’s Q-factors depend on internal losses due to the matching network and the phantom’s impact. To improve performance during in-vivo measurements, resonant frequency and matching should be nearly independent from the loading.