A Circularly Polarized 3-D Printed Dielectric Transmitarray Antenna at Millimeter-Wave Band

被引：32

作者：

Wei, Feng ^{[1
]}

Hao, Jia-Wen ^{[1
]}

Xu, Le ^{[1
]}

Shi, Xiaowei ^{[1
]}

机构：

[1] Xidian Univ, Sch Elect Engn, Natl Key Lab Antennas & Microwave Technol, Xian 710071, Peoples R China

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2021年 / 20卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Transmitting antennas; Dielectrics; Substrates; Dielectric resonator antennas; Three-dimensional displays; Antenna feeds; Millimeter wave technology; 3-D printed; circular polarization; dielectric resonator antennas; transmitarray; DESIGN; REFLECTARRAY;

D O I：

10.1109/LAWP.2021.3077290

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, a novel elliptical cylinder dielectric resonator (ECDR) is proposed. By combining a square substrate and two symmetrical ECDRs, an ECDR element is formed, which can effectively achieve the transformation from the linearly polarized incident wave to the circularly polarized (CP) transmitted wave. By adjusting the height of the element, a linear transmission phase range over 360 degrees can be obtained, which can reduce the fabrication difficulty and cost through a 3-D printed technology significantly. Meanwhile, the ECDR element has a low conductor loss in high frequency. Additionally, a CP 3-D printed dielectric transmitarray antenna at the millimeter-wave band is designed by employing the ECDR elements. It is found that the aperture efficiency is up to 40.3%, the 3 dB axial ratio bandwidth is 17%, and the 1 dB gain bandwidth is 13.3%, respectively. The measured results are in good agreement with the simulated ones. This may be the first time that a CP 3-D printed dielectric transmitarray antenna has been reported.

引用

页码：1264 / 1268

页数：5

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