Table 1 Performance comparison.

From: 5G as a wireless power grid

Ref. Frequency (GHz) Rectenna turn-ON power density Rectenna angular coverage (°) Flexible
5 24 5 dBm cm−2 at \(R_L = {739}\,{\Omega }\) 40 YES
6 24 − 3 dBm cm−2 at \(R_L = {160}\,{\Omega }\) 40 NO
7 20.2 − 3 dBm cm−2 at \(R_L = {300}\,{\Omega }\) 40 NO
8 28 − 6 dBm cm−2 at \(R_L\) = 1 \(\hbox {k}\Omega\) 85 NO
This work 28 − 6 dBm cm−2 at \(R_L\) = 1 \(\hbox {k}\Omega\) 110 YES