rfharvesting

Hello, thank you for your time to read this. I need some guidance as to completing my school project. I plan to build small and simple RF harvesting circuit that is capable of generating small enough voltage to light up a small led. To make this possible... Which frequency band should I aim...

Hi! I have a doubt about the impedance matching circuit for RF energy harvesting. I’m not sure if the impedance matching circuit should match the resistance of the rectifying circuit or the resistance of the load I want to power. Hope I explained myself properly. Thank you!