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| 一种新型宽波束圆极化微带天线的设计 | |
| 引用本文： | 陈钢,韩日霞,熊君瑞,吴兴旺,卢智远.一种新型宽波束圆极化微带天线的设计[J].现代电子技术,2012,35(19):82-84. |
| 作者姓名： | 陈钢 韩日霞 熊君瑞 吴兴旺 卢智远 |
| 作者单位： | 1. 甘肃省环境科学设计研究院,甘肃兰州,730000 2. 西安电子科技大学生命科学技术学院,陕西西安,710071 3. 西安电子科技大学电子工程学院,陕西西安,710071 |
| 基金项目： | 国家自然科学基金资助项目(30470429) |
| 摘 要： | 设计了一种新型宽波束圆极化微带天线,该天线采用四探针馈电,馈电网络由威尔金森功分器和传输线移相器组成,使四个馈电探针的相位依次相差π/2,实现了右旋圆极化辐射。通过Ansoft HFSS仿真结果表明：该微带天线结构简单、极化纯度高、全向性能好、轴比小于3dB的圆极化带宽达到27.7%,高于一般的微带圆极化天线（轴比小于3dB带宽约为15%）。天线可以很好地满足GPS通信的技术要求,也可用于无线局域网。 |
| 关 键 词： | 宽波束 圆极化 四探针馈电 微带天线 |
Design of novel wide-beam circularly polarized antenna |
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| CHEN Gang , HAN Ri-xia , XIONG Jun-rui , WU Xing-wang , LU Zhi-yuan.Design of novel wide-beam circularly polarized antenna[J].Modern Electronic Technique,2012,35(19):82-84. | |
| Authors: | CHEN Gang HAN Ri-xia XIONG Jun-rui WU Xing-wang LU Zhi-yuan |
| Affiliation: | 1.Environmental Science Design and Research Institute of Gansu Province,Lanzhou 730000,China; 2.School of Life Sciences and Technology,Xidian University,Xi’an 710071,China; 3.School of Electronic Engineering,Xidian University,Xi’an 710071,China) |
| Abstract: | The paper provides a novel design of wide-beam circular polarization microstrip antenna which uses a four-probe feeding for power,and the feed network contains three Wilkinson power dividers and transmission phase shifter,which produces a ordinal π/2 phase-shifting between the four probes and realizes the right circular polarization radiation.The simulation results through Ansoft HFSS show that this antenna has many advantages of simple structure,high polarization purity and good omni-direction performance.The circular polarization bandwidth for axial ratio less than 3 dB reaches 27.7% and the bandwidth of the proposed antenna is higher than that of the general circularly polarized microstrip antenna(the bandwidth for axial ratio less than 3 dB is 15%).The antenna can meet the requirements of GPS communication technology and also be applied in the wireless local area network. |
| Keywords: | wide-beam circular polarization four-probe feeding microstrip antenna |
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