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Effects of Introducing Slots in Rectenna

B hridayeta, P.K. Singhal

Abstract


Wireless power is turning out to be a promising technology in near future. This would not only be an alternative to batteries and wired supply, but also protect our environment from the harmful effects of batteries. In this paper analysis of introducing slots in the rectenna is studied. An experimental RF energy harvesting system to transmit wireless powers using microwaves is designed and then effects of slot loading on the resonance frequency, reflection coefficient, bandwidth, and gain are analysed. The design is achieved by creating two rectangular slots of same physical patch dimensions. The proposed circuit is a combination of RMPA , followed by a 3rd order stepped impedance low pass filter, matching network and rectifier using a Schottky diode for microwave(RF) to DC conversion. The performance of the rectenna is simulated by electromagnetic simulator Computer Simulation Technology (CST) Microwave Studio. Rectenna offers 198 mV of output DC voltage at distance of about 15 cm from router.

Keywords: Rectangular Microstrip Patch Antenna (RMPA), Low Pass Filter (LPF), Rectenna, Computer simulation Technology (CST-MW), Industrial Scientific Medical (ISM), Slot Loading.

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References


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DOI: https://doi.org/10.37628/ijtet.v1i1.50

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