Ultrawideband Magnetoelectric Dipole Liquid Dielectric Resonator Rectenna for RF Energy Harvesting System

被引：0

作者：

Yu, Zhong ^{[1
]}

Nie, Haitao ^{[1
]}

Wang, Zhe ^{[1
]}

Zhang, Haotian ^{[2
]}

Zhang, Zhixian

机构：

[1] Xian Univ Posts & Telecommun, Sch Commun & Informat Engn, Xian 710071, Peoples R China

[2] Harbin Engn Univ, Sch Commun & Informat Engn, Harbin 150001, Peoples R China

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2024年 / 23卷 / 07期

关键词：

Dipole antennas; Rectennas; Antenna measurements; Dielectric resonator antennas; Rectifiers; Dielectrics; Radio frequency; Dielectric resonator antenna (DRA); magnetoelectric dipole antenna; power conversion efficiency (PCE); ANTENNA; ARRAY;

D O I：

10.1109/LAWP.2024.3385300

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：

In this letter, we propose a magnetoelectric dipole liquid dielectric resonator (ME-LDR) rectenna to improve an RF-DC power conversion efficiency (PCE) in radio frequency energy harvesting systems. The ME-LDR rectenna utilizes a folded ME antenna filled with liquid ethyl acetate dielectric material coupled with a bridge rectifier. Measurements show that the ME-LDR rectenna resonates in the 3.1-6.0 GHz range with a relative bandwidth of 63.7% (S-11 <=-10 dB), and a front-to-back ratio of 25.8dB at 3.8 GHz. This rectenna achieves a PCE of 71.54% at an input power of 18 dBm. The results show that the ME-LDR rectenna improves the PCE and bandwidth through the ME antenna with liquid ethyl acetate. The ME-LDR rectenna can provide a green alternative energy source for portable low-power devices in different sectors, which include wireless sensor networks and healthcare detection.

引用

页码：2200 / 2204

页数：5

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