Design of a compact antenna and rectifier for a dual band rectenna operating at 2.4 GHz and 5.8 GHz

2022 16th International Conference on Telecommunication Systems, Services, and Applications (TSSA) Pub Date : 2022-10-13 DOI:10.1109/TSSA56819.2022.10063929

W. Khan, R. Raad, Faisel E. M. Tubbal, G. Mansour

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Abstract

In this article, a multiband compact patch antenna and a multiband rectifier circuit is proposed for a rectenna operating at 2.4 GHz and 5.8 GHz for RF energy harvesting and wireless power transmission. A modified inverted F shape antenna is used as the main receiving component of the rectenna. The antenna has a compact size of 35×40 mm2. The proposed antenna has good impedance bandwidth (for S11< -10 dB) values of 230 MHz and 620 MHz at the resonant frequencies 2.4 GHz and 5.8 GHz, respectively. The gain values are 3.6 dB and 3.3 dB at 2.4 GHz and 5.8 GHz, respectively. Furthermore, an efficient dual band rectifier circuit is presented. The rectifier circuit is a single branch and consists of a matching network, voltage doubler circuit and a load. The proposed rectifier circuit is designed on RT-Duroid 5880 substrate and the HSMS2850 diode is used for rectification. The rectifier achieves very good efficiency at both frequencies i.e., 71 % and 51.9 % at 2.4 GHz and 5.8 GHz respectively.

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2.4 GHz和5.8 GHz双频整流天线的紧凑型天线和整流器设计

本文提出了一种多频段紧凑型贴片天线和多频段整流电路，用于2.4 GHz和5.8 GHz的射频能量收集和无线电力传输。采用一种改进的倒F形天线作为整流天线的主接收元件。天线的紧凑尺寸为35×40 mm2。该天线在2.4 GHz和5.8 GHz谐振频率下阻抗带宽(S11< -10 dB)分别为230 MHz和620 MHz。在2.4 GHz和5.8 GHz时，增益值分别为3.6 dB和3.3 dB。此外，还提出了一种高效的双频整流电路。整流电路为单支路，由匹配网络、倍压电路和负载组成。该整流电路设计在RT-Duroid 5880衬底上，采用HSMS2850二极管进行整流。整流器在两个频率下都有很好的效率，即在2.4 GHz和5.8 GHz分别达到71%和51.9%。

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2022 16th International Conference on Telecommunication Systems, Services, and Applications (TSSA)

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