Archimedean spiral antenna based on metamaterial structure with wideband circular polarization

被引：8

作者：

Liu, Lu ^{[1
]}

Liu, Tian ^{[1
]}

Zheng, Yu ^{[1
]}

Chernogor, Leonid F. ^{[1
,2
]}

Jin, Zhe-jun ^{[1
]}

Sun, Zhongsen ^{[1
]}

机构：

[1] Qingdao Univ, Coll Elect Informat, Qingdao 266071, Peoples R China

[2] Kharkov Natl Univ, Dept Space Radio Phys, 4 Svobody Sq, UA-61022 Kharkiv, Ukraine

来源：

AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS | 2022年 / 152卷

关键词：

Split ring resonator; Axial ratio; Circular polarization antenna; Wideband; Metamaterial; PATCH; DESIGN;

D O I：

10.1016/j.aeue.2022.154257

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 small aperture spiral antenna with circular polarization based on metamaterials is presented. The proposed antenna is composed of an Archimedean spiral, split ring resonator (SRR) and a microstrip exponentially tapered balun for antenna feeding. The SRR is composed of three split rings, which has negative permeability characteristics. By adding SRR to the periphery of the Archimedean spiral, the antenna axial ratio (AR) performance in low frequency is enhanced, and the antenna electrical length is extended, which achieves antenna miniaturization. The proposed antenna has -10 dB impedance bandwidth and 3 dB AR bandwidth from 1.7 GHz to 7.5 GHz. In the operation band, the peak gain is always greater than 2 dBi. Furthermore, the measured antenna efficiency is always more than 60% in the whole operation bandwidth. The volume of the proposed antenna is 65 x 65 x 50 mm3. The experimental results corroborate the computational results, indicating that the designed antenna can be widely used in broadband circular polarization systems, such as mobile communication, radar detection and other fields.

引用

页数：10

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