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. Author manuscript; available in PMC: 2020 Mar 1.
Published in final edited form as: IEEE Trans Microw Theory Tech. 2018 Dec 14;67(3):1184–1196. doi: 10.1109/TMTT.2018.2884405

Fig. 14.

Fig. 14.

Experimental efficiency comparison for (a) single patch probe, (b) combination single patch probe and interdigitated capacitor probe array, (c) strip helix, (d) shorted strip helix, (e) shorted strip helix with longitudinal end strips, and (f) strip helix with lateral end strips.