A Novel High-Gain Rectenna for Wireless Power Transmission (WPT) Applications

IF 1.7 4区计算机科学 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

International Journal of Communication Systems Pub Date : 2025-04-24 DOI:10.1002/dac.70112

Yacine Boussaadia, Mohamed Tellache, Fayçal Amrani

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Abstract

This work reports a novel high-gain rectifying antenna designed for wireless power transfer applications. Initially, a novel compact butterfly dipole antenna was developed and optimized for the UMTS-2100/3G and GSM-1800/4G frequency bands. A band-stop reflector based on a frequency selective surface (FSS) structure is designed and integrated with the antenna to enhance its radiation characteristics over the desired bandwidth. A high-efficiency rectifying circuit is developed to operate over a broad input power range within the desired bandwidth. The antenna's measured results showed a significant enhancement in its gain and reflection coefficient after integrating the FSS reflector. At the desired frequencies of 1.8 and 2.1 GHz, the gain reached 8.59 and 6.69 dBi, increasing by 6.41 and 3.71 dBi, respectively. The reflection coefficient achieved a peak value of −44.19 dB at the resonant frequency of 1.86 GHz, improving by 25.49 dB compared with the antenna without a reflector. The bandwidth also expanded by 0.09 GHz to reach 0.45 GHz, from 1.71 to 2.16 GHz, and the fractional bandwidth (FBW) is 23.26%. The rectifier's measured results showed high conversion efficiency, achieving 63.2% and 57.4% at the desired frequencies of 1.8 and 2.1 GHz, respectively, for an input power level of 10 dBm. In addition, it provides more than 50% conversion efficiency across a wide input power range of 16.5 dBm (−0.1 to 16.4) and 11.7 dBm (2.8–14.5) at frequencies 1.8 and 2.1 GHz, respectively.

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一种用于无线电力传输（WPT）的新型高增益整流天线

这项工作报告了一种新型的高增益整流天线，设计用于无线电力传输应用。最初，针对UMTS-2100/3G和GSM-1800/4G频段开发并优化了一种新型紧凑型蝴蝶偶极子天线。设计了一种基于频率选择表面（FSS）结构的带阻反射器，并将其集成到天线中，以提高其在所需带宽内的辐射特性。开发了一种高效率整流电路，可在所需带宽内的宽输入功率范围内工作。测量结果表明，集成FSS反射器后，天线的增益和反射系数有了显著提高。在1.8 GHz和2.1 GHz期望频率下，增益达到8.59和6.69 dBi，分别增加了6.41和3.71 dBi。谐振频率为1.86 GHz时，反射系数峰值为−44.19 dB，比无反射器天线提高了25.49 dB。带宽也增加了0.09 GHz，达到0.45 GHz，从1.71 GHz增加到2.16 GHz，分数带宽（FBW）为23.26%。整流器的测量结果表明，在输入功率为10 dBm时，在1.8 GHz和2.1 GHz的期望频率下，转换效率分别达到63.2%和57.4%。此外，在1.8 GHz和2.1 GHz频率下，在16.5 dBm（−0.1至16.4）和11.7 dBm（2.8至14.5）的宽输入功率范围内，它提供了超过50%的转换效率。

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来源期刊

International Journal of Communication Systems 工程技术-电信学

CiteScore

5.90

自引率

9.50%

发文量

323

审稿时长

7.9 months

期刊介绍： The International Journal of Communication Systems provides a forum for R&D, open to researchers from all types of institutions and organisations worldwide, aimed at the increasingly important area of communication technology. The Journal''s emphasis is particularly on the issues impacting behaviour at the system, service and management levels. Published twelve times a year, it provides coverage of advances that have a significant potential to impact the immense technical and commercial opportunities in the communications sector. The International Journal of Communication Systems strives to select a balance of contributions that promotes technical innovation allied to practical relevance across the range of system types and issues. The Journal addresses both public communication systems (Telecommunication, mobile, Internet, and Cable TV) and private systems (Intranets, enterprise networks, LANs, MANs, WANs). The following key areas and issues are regularly covered: -Transmission/Switching/Distribution technologies (ATM, SDH, TCP/IP, routers, DSL, cable modems, VoD, VoIP, WDM, etc.) -System control, network/service management -Network and Internet protocols and standards -Client-server, distributed and Web-based communication systems -Broadband and multimedia systems and applications, with a focus on increased service variety and interactivity -Trials of advanced systems and services; their implementation and evaluation -Novel concepts and improvements in technique; their theoretical basis and performance analysis using measurement/testing, modelling and simulation -Performance evaluation issues and methods.