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
收藏
页码：2200 / 2204
页数：5
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