Differentially-fed Omnidirectional Circularly Polarized Patch Antenna for RF Energy Harvesting

被引：0
|
作者：
Bao, Xiulong [1 ]
Yang, Kansheng [1 ]
O'Conchubhair, Oisin [1 ]
Ammann, Max J. [1 ]
机构：
[1] Dublin Inst Technol, Antenna & High Frequency Res Ctr, Sch Elect & Elect Engn, Dublin, Ireland
来源：
2016 10TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP) | 2016年
关键词：
Rectifier; Circularly Polarized Antenna; Omnidirectional Radiation; Differentially-fed; Bandpass Filter; Axial Ratio; Back-to-Back; RF Energy Harvester; DESIGN;
D O I：
暂无
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：
A differentially-fed omnidirectional circularlypolarized antenna is investigated for application in RF energy harvesting. The antenna is composed of a two-layer substrate and back-to-back printed square patches which have two diagonal stubs and one truncation. The patches share a common ground plane. Both patches generate circular polarization (CP) and omnidirectional CP is provided. The antenna provides an axial-ratio bandwidth of 20 MHz from 2.43 GHz to 2.45 GHz. In order to measure the proposed differentially-fed antenna, a feed network connected between the SMA port and differential port is designed. Furthermore, the combined configurations with the proposed antenna, bandpass filter and rectifier can be built and convert the electromagnetic field to DC. The measured output voltage is 255mV at 2.40GHz.
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页数：5
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