5.8-GHz planar hybrid rectenna for wireless powered applications
5.8-GHz planar hybrid rectenna for wireless powered applications
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适用于无线供电应用的 5.8GHz 平面混合整流天线
DOI：
10.1109/apmc.2006.4429715
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
Susumu Sasaki
中科院分区：
文献类型：
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作者：
Minoru Furukawa;Yoshiro Takahashi;T. Fujiwara;S. Mihara;Takashi Saito;Yutaro Kobayashi;Shigeo Kawasaki;Naoki Shinohara;Yoshiyuki Fujino;Kouji Tanaka;Susumu Sasaki
本文提出了一种高效率低再辐射平面整流天线。该整流天线由一个采用新型共面馈电结构的高增益背腔圆形贴片天线和一个低剖面微带整流电路组成。背腔天线的增益为9.17dBi，-20dB回波损耗带宽约为1.4%。整流电路具有谐波滤波器，可将再辐射谐波抑制在-59 dBc以下。在输入功率为266 mW时，测得整流天线元件的射频-直流转换效率为71.4%。采用52单元三角形阵列实现了超过13 W的直流输出功率。
This paper presents a high-efficiency low-reradiation planar rectifying antenna (rectenna). The rectenna is composed of a high-gain cavity-backed circular patch antenna using novel coplanar feeding structure and a low-profile microstrip rectifying circuit. The cavity-backed antenna achieved the gain of 9.17dBi and the -20dB return loss bandwidth of approximately 1.4%. The rectifying circuit has a harmonics filter that suppresses the reradiated harmonics under -59 dBc. The RF-to-dc conversion efficiency of the rectenna element was measured as 71.4% with a 266mW input power. Over 13W DC output power was demonstrated using the 52- element triangular array.