摘要
设计了一种平面宽带平衡准八木天线,该天线由双面印刷的电偶极子和反射器以及单面印刷的两个引向器组成。所用介质基板的相对介电常数为2.2,其尺寸为29.5 mm×27.0 mm×1.0 mm。利用电磁仿真软件IE3D对该天线的参数进行了仿真优化,得到了其阻抗带宽、增益、辐射方向图等特性。仿真结果表明:该天线的阻抗带宽从4.1 GHz到10.8 GHz(S11<–10 dB),相对带宽可达到89.9%,增益平均值为5.08 dB,增益的波动范围为3.73 dB到6.28 dB,此外该天线具有稳定的定向的辐射方向图。
A planar broadband balanced quasi-Yagi antenna was proposed. The proposed antenna consisted of the dipole and the reflector printed on both sides of the substrate and two directors printed on one side. The proposed antenna was designed on a 29.5mm×27.0mm×1.0mm substrate with a relative permittivity of 2.2. The antenna was simulated and optimized by using the software IE3D, impedance bandwidth, gain, and radiation patterns of the antenna were studied. The simulation results show that the impedance bandwidth of 89.9% （S11 〈-10 dB） from 4.1 GHz to 10.8 GHz is achieved, the average gain is 5.08 dB and gain fluctuation range is from 3.73 dB to 6.28 dB. Besides, unidirectional stable radiation patterns also can be obtained.
出处
《电子元件与材料》
CAS
CSCD
北大核心
2014年第9期83-86,共4页
Electronic Components And Materials
关键词
宽带天线
平衡
准八木天线
低剖面
定向辐射
印刷偶极子
broadband antenna
balance
quasi-Yagi antenna
low-profile
unidirectional radiation
printed dipole
