Abstract
This paper presents multiband monopole antenna for radio frequency energy harvesting applications. The proposed antenna has good performance in wireless communication bands. The antenna is printed on FR4 substrate with matching L shaped stubs, to achieve suitable impedance bandwidth. Two symmetric stubs with width equal to 0.6 mm and five slot arms are etched on the radiator surface, each arm is responsible for certain resonant frequency. The antenna operates at five operating bands (GPS band, DSC band, ISM band, WiFi band and WiMax band) with reflection coefficients below — 10 dB. The simulation result of the rectifier demonstrate that are operating with Triple-band RF energy harvesting system for three bands wide-band at 2.5 GHz, 3.7 GHz and 5.8 GHz. This antenna shows good matching between simulation and experimental results. The proposed rectenna can provide high RF-DC conversion efficiency which is suitable for RF energy harvesting applications.
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