Low-cost environment-friendly energy scavenging system
Résumé
Abstract The purpose of this work is to design an energy scavenging system. The system scavenges ambient energy from indoor Wi-Fi routers. It makes use of low cost, environment-friendly and widely available corrugated cardboard substrate. The circuit design is realized on metallic layers made of low-cost copper tape. A Villard rectifier is used to convert the RF energy into dc. The measured scavenged power of the system at the power density of 10 μ W cm −2 is −15.76 dBm (26.5 μ W). The measured conversion efficiency is 58.6%. The presented design has the lowest cost among other similar works.