4x4 Circularly Polarized Antenna Array for Ambient RF Energy Harvesting

被引：0

作者：

Dardeer, Osama M. A. ^{[1
,2
]}

Elsadek, Hala A. ^{[2
]}

Abdallah, Esmat A. ^{[2
]}

Elhennawy, Hadia M. ^{[1
]}

机构：

[1] Ain Shams Univ, Elect & Elect Commun Engn Dept, Cairo, Egypt

[2] Elect Res Inst, Microstrip Dept, Giza, Egypt

来源：

2019 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION AND USNC-URSI RADIO SCIENCE MEETING | 2019年

关键词：

Planar Antenna Array; Co-Planar Waveguide; Sequential Phase Feeding; Circular Polarization; RF Energy Harvesting;

D O I：

10.1109/apusncursinrsm.2019.8888857

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：

This paper presents a planar circularly polarized (CP) 4x4 antenna array for RF energy harvesting applications. The single element is a coplanar waveguide (CPW) slot antenna. A sequentially rotated feed network is introduced for generating CP 2x2 array and achieved a phase excitation of 0 degrees, 89.39 degrees, 178.6 degrees, and 271 degrees. This 2x2 planar antenna array is repeated three times to produce CP 4x4 antenna array that equally feeds the four groups of 2x2 arrays. A microstrip to CPW transition by via holes is used for connecting the Wilkinson microstrip lines to CPW antenna elements. Four lobes at +45 degrees, +135 degrees, -45 degrees, and -135 degrees, respectively can be noticed and other interlaced beams with lower magnitudes are evolved. The array ARBW (for AR < 3 dB) is extended from 1.3 GHz to 2.83 GHz (with bandwidth of 1.53 GHz).

引用

页码：1175 / 1176

页数：2

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