Schematic configurations of (a) SRR, (b)ELC, (c) CELC-1, and (d) CELC-2, CELC-3 resonator antennas. For the CELC-1,-2,-3 configurations, the respective orientation is indicated in (e).
Return loss of the resonator antennas depicted in Fig. 1 .
3-D far-field radiation pattern (first row), xy- and yz-plane radiation patterns (second row), and the surface current plots (third row) for each of the antennas shown in Fig. 1 .
(a) Bent monopole-excited CELC antenna. (b) Measured return loss. (c) Radiation pattern.
Simulation (measurement) results of the figures of merit.
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