# Table 1 Performance comparison.

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