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. 2022 Apr 26;35(6):875–894. doi: 10.1007/s10334-022-01007-5

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© The Author(s) 2022

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Fig. 21 — (Left) Dielectric resonator made from PZT with a relative permittivity of ~ 1070. The dimensions of the block are 90 × 44 × 5 mm³ so that the frequency of the TE_01δ mode is at 298 MHz (7 T). (Right) The DR is coupled inductively to a small loop for transformer impedance matching. Figure adapted from [92]