Multiband Rectennas Using a Bowtie Antenna - A Review
This paper reviews the rectennas which are employed to harvest the electric energy from RF signals radiated by several communication systems. The modified bowtie antenna considered in this study is used to collect the Electro-Magnetic energy (EM) coming from RFID systems and a 2-stage voltage rectifier used to convert it into DC power has been discussed. For the circuit realization, commercial zero biased Schottky diode HSMS2850, 1 nF blocking capacitors and 100 nF output capacitor are used. The paper also addresses the activities involved in designing a wideband system to recover energy from electromagnetic sources present in the environment.