“…Therefore, alternative methods of powering are needed. Practical alternatives in the literature include RF [4][5][6], Inductive coupling [7][8][9], ultrasonics [10][11][12][13][14], permanent magnet [15][16][17], magnetic resonance [18][19][20], volume conduction [21,22], witricity [23][24][25], optics [26,27], bone conduction [28,29], microbial fuel cells [30], and energy harvesting [31,32] to mention a few.…”