920 MHz band rectenna with the CNT-TFT GAD

This paper presents the first demonstration of rectification with the carbon nanotube thin film transistor (CNT-TFT) for wireless power transfer (WPT) in the 920 MHz band. The CNT-TFT that is a coated TFT using semiconducting single-walled carbon nanotubes has advantage of low-cost fabrication and planner integration with an antenna on a thin film. On the other, reported frequency ranges were within HF bands due to their wider channel size. For applying the CNT-TFT to GHz-order rectification, the gated anode diode (GAD) is employed and is characterized for its modeling. As the results, practical operations of 920 MHz band rectenna with the CNT-TFT GAD and the dual loop antenna can be confirmed in experimental investigations.