Design of miniaturized metamaterial rectenna for radio frequency energy collection system

GAO Bo; JIANG Tianyan; HAN Hongwei; SU Wang; ZHANG Qingping; LI Xuefeng; LI Yongliang

doi:10.3969/j.issn.1672-3643.2024.03.009

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Design of miniaturized metamaterial rectenna for radio frequency energy collection system

更新时间：2026-07-27

- Design of miniaturized metamaterial rectenna for radio frequency energy collection system
- Ningxia Electric Power Issue 3, (2024)
- 作者机构：
  
  1. 国网宁夏电力有限公司电力科学研究院,宁夏,银川,750011
  2. 重庆理工大学,重庆,400054
  3. 国网宁夏电力有限公司,宁夏,银川,750001
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.1672-3643.2024.03.009
  CLC：
- Online First：08 July 2024，
  
  Published：2024
- 稿件说明：
移动端阅览
GAO Bo, JIANG Tianyan, HAN Hongwei, et al. Design of miniaturized metamaterial rectenna for radio frequency energy collection system[J]. Ningxia Electric Power, 2024, (3).
DOI：

GAO Bo, JIANG Tianyan, HAN Hongwei, et al. Design of miniaturized metamaterial rectenna for radio frequency energy collection system[J]. Ningxia Electric Power, 2024, (3). DOI： 10.3969/j.issn.1672-3643.2024.03.009.

摘要

为了高效收集空间存在的射频能量，提出了一种新型的射频能量收集系统：首先，设计了一种单极子微带天线，其性能稳定且易于加工；其次，结合超材料理论设计了一种基于开口环形谐振器的超材料单元，其内环采用曲流技术，从而使天线小型化；最后通过将超材料单元加载在微带天线上对其进行了改进，能够进一步减小天线尺寸，改善带宽、增益等性能。系统由小型化超材料天线、匹配电路、整流电路及负载组成，对天线及整流电路进行仿真优化。经过实际加工测试，系统在2.45 GHz时输出电压为318 mV，对应的最大整流效率为13.5%。

Abstract

In order to efficiently collect radio frequency energy in space

a new type of radio frequency energy collection system is proposed.Firstly

a monopole microstrip antenna is designed

which is stable and easy to process.Secondly

a metamaterial unit based on open ring resonator is designed based on metamaterial theory.The inner ring adopts meander technology to miniaturize the antenna.Finally

the microstrip antenna is improved by loading the metamaterial unit onto it

which can further reduce the antenna size and improve the performance of bandwidth and gain.The system is composed of miniaturized metamaterial antenna

matching circuit

rectifier circuit and load.HFSS and ADS software are used to simulate and optimize the antenna and rectifier circuit respectively.After the actual processing test

the output voltage of the system at 2.45 GHz is 318 mV

the corresponding maximum rectification efficiency is 13.5%.

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