0P An Antipodal Vivaldi Antenna with Elliptical Slots for Low-Cost Rectenna Applications

被引：2
作者：
Pereira, E. T. [1 ]
Paz, H. P. [1 ]
Silva, V. S. [1 ]
Cambero, E. V. V. [1 ]
Casella, I. R. S. [1 ]
Capovilla, C. E. [1 ]
机构：
[1] Fed Univ ABC UFABC, Santo Andre, SP, Brazil
来源：
JOURNAL OF CIRCUITS SYSTEMS AND COMPUTERS | 2021年 / 30卷 / 14期
基金：
巴西圣保罗研究基金会;
关键词：
Planar antenna; antipodal Vivaldi antenna; radio-frequency energy harvesting; rectenna; MULTIBAND RECTENNA; RF; EFFICIENCY;
D O I：
10.1142/S0218126621502480
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, a low-cost rectenna based on an antipodal Vivaldi antenna (AVA) with elliptical slots (AVA-ES) is developed and analyzed. The design of AVA-ES, when compared to a reference AVA, presents significant improvements in directivity and gain (58% at 2.45 GHz for both), evidencing its advantages for using in rectennas. The proposed rectenna prototype presents satisfactory results at 2.45 GHz, such as conversion efficiency for low-power input levels (27% at - 10 dBm) and maximum output voltage (550 mV), that supports its use for radio-frequency energy harvesting (RFEH).
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页数：14
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