A Dual-Band Rectifying Antenna Design for RF Energy Harvesting

被引：0
|
作者：
Zhao, Jincheng [1 ]
Subramanyam, Guru [1 ]
Yue, Hailing [1 ]
机构：
[1] Univ Dayton, Elect & Comp Engn, Dayton, OH 45469 USA
来源：
2020 IEEE 63RD INTERNATIONAL MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS (MWSCAS) | 2020年
关键词：
dual band antenna; energy harvesting; folded-slot antenna; harmonic balance; rectifying antenna; RF-DC conversion efficiency; FOLDED-SLOT ANTENNAS; 2.45-GHZ RECTENNA; POWER TRANSMISSION;
D O I：
10.1109/mwscas48704.2020.9184606
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
A novel dual-band rectifying antenna (also termed rectenna) is designed to harvest ambient energy at WIFI frequencies. The proposed rectenna consists of a Coplanar Waveguide (CPW) Folded-Slot (FS) antenna, a two-stages matching network, a half-wave rectifier circuit, and a resistive load. The CPW FS antenna is designed and demonstrated to resonate at both 2.4 and 5.2 GHz at a compact size of 55mmx30mm with a measured Return Loss (RL) higher than 20dB at each resonance, respectively. Harmonic Balance (HB) simulation is then performed to sweep input power levels and load resistance values to achieve the highest RF-DC conversion efficiency and corresponding output DC voltages. Expected RF-DC conversion efficiency and output DC voltage level at first resonance are 63.38% and 1.4V at an input power of 13 dBm and a load of 150 Omega. At the secondary resonance, the maximum conversion efficiency and output voltage can reach up to 65.4% and 1.53V at input power of 13 dBm and load of 150 Omega.
引用
收藏
页码：415 / 418
页数：4
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