Tunnel FET device characteristics for RF energy harvesting passive rectifiers
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Abstract
The lack of high power conversion efficiency in RF passive rectifier circuits at sub-µW power levels with current
MOSFET technologies is directly related with the difficulty of the transistors in conducting the required level of current at low voltage
values. With a different carrier injection mechanism, the superior electrical characteristics of the Tunnel FET devices at low voltage
values (sub-0.25 V) can outperform the process of energy conversion at ultra-low power, thus improving the operation range of RF
energy harvesting circuits. In this work, a simulation study on the doping profile and material selection of Tunnel FET devices shows
the impact of device properties in rectifier circuit efficiency