A Circular Polarized Rectenna with Out-of-Band Suppression for Microwave Power Transmission

Table 2

Comparison of conversion efficiency of different rectennas.

Rectenna structure	Max conversion efficiency
[8]	65.2%
[17] with dual patch	70%
[17] with 6-patch array or 16-patch array	74%
[18]	37.1%
[19]	70%
This work	75.5%