Highly Efficient Wideband mmWave Rectennas for Wireless Power Transfer System with Low-Cost Multi-Node Tracking Capability

Song, Chaoyun, Wang, Lei, Lu, Ping, Zhang, Cheng, Chen, Zhensheng, Zheng, Xuezhi, He, Yejun, Goussetis, George, Vandenbosch, Guy AE and Huang, Yi ORCID: 0000-0001-7774-1024 (2023) Highly Efficient Wideband mmWave Rectennas for Wireless Power Transfer System with Low-Cost Multi-Node Tracking Capability. IEEE Transactions on Antennas and Propagation, 71 (11). p. 1.

PDF
Highly_Efficient_Wideband_mmWave_Rectennas_for_Wireless_Power_Transfer_System_with_Low-Cost_Multi-Node_Tracking_Capability.pdf - Author Accepted Manuscript
Download (2MB) | Preview

Official URL: http://dx.doi.org/10.1109/tap.2023.3313182

Abstract

An innovative wireless power transfer (WPT) system utilizing millimeter-wave (mmWave) power for multinode charging and tracking is presented in this article. The core concept of the system revolves around the utilization of frequency-dispersive leaky-wave antenna (LWA) transmitters, enabling passive beam scanning in the far field without the need for active phased arrays. However, such a system requires a breakthrough in receiving rectenna design at mmWave frequencies, encompassing a wide frequency bandwidth, wide beamwidth, and high RF-to-dc conversion efficiency beyond 20 GHz. In this work, we introduce a pioneering mmWave rectenna design achieved through the codesign integration of a magnetoelectric (ME) dipole and high-frequency diodes, eliminating the need for complex impedance matching networks at mmWave frequencies. The proposed rectenna operates in the frequency range of 24-34.5 GHz, achieving over 50% RF-to-dc conversion efficiency for input powers exceeding 15 dBm. In addition, the rectenna demonstrates improved gain and beamwidth compared to conventional designs, enabling wide-angle reception of frequency-scanning passively beamformed mmWave signals. A practical demonstration of the proposed system showcases simultaneous wireless charging of three nodes, highlighting its notable advantages in terms of mobility, cost-effectiveness, and simplicity over conventional WPT technologies.

Item Type:	Article
Uncontrolled Keywords:	7 Affordable and Clean Energy
Divisions:	Faculty of Science and Engineering > School of Electrical Engineering, Electronics and Computer Science
Depositing User:	Symplectic Admin
Date Deposited:	19 Sep 2023 09:38
Last Modified:	15 Mar 2024 23:40
DOI:	10.1109/tap.2023.3313182
Related URLs:	Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3172880