In this letter, an ultra wideband rectenna using a novel wideband matching circuit for energy harvesting systems is proposed. A new simple and wide band matching circuit configuration that operates from 0.9 to 2.5 GHz is connected to an ultra wideband (UWB) antenna to make a rectenna system. Simulation results of proposed rectenna exhibits good matching performance (S11 < -10 dB) and a high RF -dc conversion efficiency (>55%) throughout a broad frequency range from 0.9 to 2.5 GHz, covering GSM, Wi-Fi, and WLAN bands. The maximum efficiency of the rectenna is around 61 % an output voltage is over 1.9 Volt, for an input power of 10dBm and load resistance of 7500. Based on the proposed structure for matching scheme, a highly efficient UWB rectenna over a wide frequency band is achievable with stable high efficiency.
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Khodaei et al. (2024) studied this question.
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