高性能高性价比的同时无线信息和功率传输部署联合调制的放大器可编程的地表超级传输
Xin Wang1, Jia Qi Han1, Guan Xuan Li1
1Key Laboratory of High-Speed Circuit Design and EMC of Ministry of Education, School of Electronic Engineering, Xidian University, Xi'an, 710071, China.
Nature communications
|September 26, 2023
概括
本研究介绍了一种放大可编程超表面 (APM),以增强同时无线信息和功率传输 (SWIPT). APM提高了电力传输和稳定性,为未来的无线系统提供了高效的数据和能量传输.
科学领域:
- 电磁学 电磁学 电磁学 电磁学
- 无线通信无线通信
- 材料科学 材料科学 材料科学
背景情况:
- 可编程的超表面提供先进的电磁波操纵,用于同时无线信息和功率传输 (SWIPT).
- 现有的系统在功率传输距离,高功率波的相稳定性和波形效率方面面临限制,影响数据和能量传输.
- 波形限制降低了平均散射功率和整流器效率,阻碍了SWIPT的性能.
研究的目的:
- 为应对SWIPT的挑战,包括有限的功率传输距离和不稳定的相位操纵.
- 提高平均分散功率和整流器转换效率,以增强数据和能量传输.
- 展示一种新的系统,用于高效且同时进行无线信息和功率传输.
主要方法:
- 一个放大可编程元表面 (APM) 的开发.
- 实施联合调制方法以优化SWIPT性能.
- 基于APM的SWIPT系统的实验验证.
主要成果:
- APM有效地减轻了峰值与平均功率的比率,增强了最大功率传输.
- 在高功率分散波下实现了更好的相应稳定性.
- 证明了平均输出功率和整流器转换效率的显著提高.
- 成功的实验验证显示了LED阵列同时供电和电影视频传输.
结论:
- 开发的APM和联合调制方法克服了SWIPT系统的关键限制.
- 这种创新的SWIPT系统证明了同时提供数据和电力的实际可行性.
- 该技术显示了未来在6G无线通信,物联网,植入设备和认知无线电网络中的应用的巨大潜力.
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