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. 2019 Jan 25;19(3):498. doi: 10.3390/s19030498

Figure 1.

Figure 1

Four different resonator shapes considered for sensitivity comparison: (a) double-ring complementary split ring resonator (DR-CSRR); (b) single-ring complementary split ring resonator (SR-CSRR); (c) rotated single-ring complementary split ring resonator (R-SR-CSRR); (d) interdigital-capacitor-shaped defected ground structure (IDCS-DGS).