A High-efficiency RF Energy Rectifier With a Wide Frequency Range

被引：0

作者：

Qiao, Jincai ^{[1
,2
]}

Zhang, Bo ^{[3
,4
]}

Niu, Zhongqian ^{[3
]}

Liu, Ying ^{[5
]}

机构：

[1] Chongqing Univ Posts & Telecommun China, Chongqing, Peoples R China

[2] UESTC, Chongqing Inst Microelerctr Ind Technol, Chongqing, Peoples R China

[3] Univ Elect Sci & Technol China, Chengdu, Peoples R China

[4] UESTC, Shenzhen Inst Adv Study, Shenzhen, Peoples R China

[5] Chongqing Univ China, Chongqing, Peoples R China

来源：

2022 15TH UK-EUROPE-CHINA WORKSHOP ON MILLIMETRE-WAVES AND TERAHERTZ TECHNOLOGIES (UCMMT) | 2022年

基金：

中国博士后科学基金; 国家重点研发计划;

关键词：

rectifier; broadband; high efficiency;

D O I：

10.1109/UCMMT56896.2022.9994816

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Taking advantage of the nonlinear impedance characteristics of diodes, a high-efficiency radio-frequency (RF) rectifier with an wide frequency band is proposed. The rectifier consists of two sub-rectifiers working in the high-power region and the low-power region, respectively. Power distri-bution due to nonlinear impedance changes without adding any power dividers or couplers. The introduction of lambda/12 and lambda/8transmission line has the effect of compensating the imaginary part of diode impedance and suppressing higher harmonics. Apply a lambda/4 transmission line to invert the change in diode impedance with respect to input power. The rectification efficiency of the rectifier reaches a maximum of 77.1% at a frequency of 5.8 GHz and an input power of 16 dBm, the rectification efficiency is greater than 50% at 0.4 dBm to 19 dBm; from the simulation results of the rectification efficiency versus frequency, it can be seen that the input power is 16 dBm, the rectification efficiency is greater than 70% from 5.68 GHz to 6.63 GHz.

引用

页码：48 / 50

页数：3

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