Gain Enhancement for Wideband CP ME-Dipole Antenna by Loading With Spiral Strip in Ku-Band

被引：38

作者：

Cao, Wenquan ^{[1
,2
]}

Wang, Qianqian ^{[3
]}

Qian, Zuping ^{[3
]}

Shi, Shujie ^{[3
]}

Jin, Jun ^{[3
]}

Ding, Kang ^{[3
]}

Zhang, Bing ^{[4
]}

机构：

[1] PLA Army Engn Univ, Coll Commun Engn, Nanjing 210096, Jiangsu, Peoples R China

[2] Southeast Univ, State Key Lab Millimeter Waves, Nanjing 210096, Jiangsu, Peoples R China

[3] PLA Army Engn Univ, Coll Commun Engn, Nanjing 210007, Jiangsu, Peoples R China

[4] Sichuan Univ, Coll Elect & Informat Engn, Chengdu 610065, Sichuan, Peoples R China

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2018年 / 66卷 / 02期

基金：

中国博士后科学基金; 美国国家科学基金会;

关键词：

Broadband high gain; circularly polarized (CP); magnetoelectric dipole antenna (MEDA); spiral strip; CIRCULARLY-POLARIZED ANTENNA;

D O I：

10.1109/TAP.2017.2777525

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：

One novel single-feed single-layer wideband circularly polarized magnetoelectric dipole antenna with enhanced gain property is presented in this communication. By loading coplanar spiral with the radiating patch, the unidirectional radiation gain of the antenna is effectively improved while the impedance bandwidth and axial ratio (AR) bandwidth unaffected. Surface current distributions with/without the spiral are compared to reveal the antenna's mechanism. The measurement shows that the left-hand circular polarized antenna features the impedance bandwidth from 11.4 to 18.5 GHz (or 52%), an AR bandwidth from 13.2 to 18 GHz (or 32%), and the maximum gain of 11.1 dBic at 16.9 GHz with 3 dB gain bandwidth from 12.5 to 18.6 GHz (or 36.1%). Owning to the low profile, broadband, and high gain, the proposed antenna is a capable candidate for satellite communication.

引用

页码：962 / 966

页数：5

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