Spherical Helices for Resonant Wireless Power Transfer

Figure 4

Examples of three-arm SHA geometries, from left to right: (a) EASS-SHA, EARS-SHA, EA spirals with difference angle 𝛾 and (b) CASS-SHA, CARS-SHA, CA spirals with difference angle 𝛾.

(a) EA-SHA geometry

(b) CA-SHA geometry