Abstract:
RF energy harvesting is a recurring theme and applicable in remote charging and
wireless power transmission. This paper presents results from an analysis of patch
antenna designs with minimum dimensions and acquirable permittivity which produce
maximum output power of 0.1 W. The potential use of RF power was investigated
experimentally. The aim of this work is to investigate the power levels that can be
harvested from air and processed to achieve the energy levels that are sufficient to
charge low power electronic circuits. An RF energy harvesting system has been
specifically designed, constructed, and shown to collect enough energy to power
circuits. If same remark is applied to a process of harvesting RF energy by using a
power circuit optimized with several stage more stabilized output can be obtained. The
impact of this reduced size parameters of the product is significant with combined
design of patch antenna and power circuit which is mounted on either sides of the same
PCB. This paper concludes that while the harvest RF was successful under certain
conditions, however, supported by other energy harvesting techniques is required to
replace a battery. Efficiency considerations have, therefore, since emphasis on
comparing developed to combine other systems. In Particular Project tradeoffs of each
circuit and materials are specially designed in order not to harmful to human body. And
radio frequency bands are chosen so that no harmful impact effects on human. These
characteristics are benefiting future bio medical innovations and this project’s next
expectation runs to a design of small power application operating reliably on direct
power without charging a battery, which is believed to be a more thrilling solution. The
impetus behind the development of such kind of optimum design can be ushered a new
era by increasing the efficiency of the circuit almost 100%. zero bias diodes are
remarkable in this regard.An RF collection system has been specifically designed,
constructed, and shown to successfully collect enough energy to power circuits. For an
equivalent incident signal o f-40 dBm, the circuit can produce 3 mV across a 100 kDl
load. The results also show that there is a multiplication factor of 22 at 0 dBm and
produces DC output voltage of 5.0 V in measurement.
