RCN has attracted special attention in the field of WPT since it was put
forward. A lot of research work has been done in rectifier basing on RCN
for the purpose of increasing conversion efficiency. It is reported that
many kinds of rectifier incorporating RCN which operate at various of
circuit forms and physical forms are proposed. RCN and all kinds of
modified versions are studied deeply in these paper, the rectifiers
related to which are analyzed also. The results show that RCN only play
the role of BPF in the rectifying circuit, which are not reaching the
original idea of the first proposer.