The voltage multiplier circuit in this design uses zero bias Schottky diode HSMS-2850 from Agilent. The at- tractive feature of these Schottky diodes are low sub- strate losses and very fast switching but leads to a fabri- cation overhead. This diode has been modeled for the energy harvesting circuit which comes in a one-diode configuration. The modeling parameters for these diodes are given by Agilent in their data sheets. These parame- ters are used in Multisim for its own modeling purposes. The modeling is done by transforming the diode into an equivalent circuit using passive components which are described by the SPICE parameters in Table 1 [6].