Current Development of Antenna Designs with Harmonic Suppression for Wireless Power Transfer
Keywords:Antenna Harmonic Suppression, Circularly Polarized, Rectenna, Wireless Power Transmission
AbstractThis paper presents the results of ongoing research in the area of the wireless power transfer application focusing on the receiving antenna. The invention of antenna harmonic suppression has been investigated to get high conversion efficiency at the output of rectenna by suppressing re-radiation of harmonics generated in diode of rectifying circuit. Various techniques that incorporate with harmonic rejection with circularly polarization were reviewed to propose an optimum topology that suits in energy scavenging and most importantly, the new proposed structure must have high gain for overall system performance. The printed microstrip antenna is designed and analyzed using the CST Software. This antenna with harmonic suppression would be useful in microwave systems and can be integrated with rectenna system or wearable energy application where the systems give size reduction.
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