DAI Xiaojun,DU Guohong,DENG Wei.A Broadband Flat Antenna Design and Simulation[J].Journal of Chengdu University of Information Technology,2019,(01):27-30.[doi:10.16836/j.cnki.jcuit.2019.01.006]
一种宽带平板天线的设计与仿真
- Title:
- A Broadband Flat Antenna Design and Simulation
- 文章编号:
- 2096-1618(2019)01-0027-04
- Keywords:
- directional antenna; broadband; gain; flat antenna
- 分类号:
- TN92
- 文献标志码:
- A
- 摘要:
- 设计仿真了一种宽带平板定向天线,该天线采用平板偶极子形式,在偶极子臂上方加入平行金属板,采取耦合的方式扩展天线带宽,通过长度约为中心频率λ/4的巴伦实现天线阻抗的匹配,并利用金属反射板实现天线的定向辐射。仿真结果表明该天线在0.84～1.68 GHz频率范围内天线反射系数S11≤-10 dB,天线相对带宽66.7%,频带内天线增益大于14 dBi,可用于超短波信号的定向侦察,具有广阔的应用前景。
- Abstract:
- A broadband planar antenna is proposed in this paper. The antenna is achieved by a flat dipole structure, which has a wider bandwidth by the mutual coupling. The lamed/4 length of balun is used for impedance matching. The metal reflector is adopted to realize the directional radiation of the antenna. The simulation results show that the proposed antenna can work in the frequency band of0.84-1.68 GHz(S11≤-10 dB), the relative band-width of the antenna reaches 66.7% and the gain is 14 dBi. The presented antenna has broad application prospects such as VHF signal detecting.
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备注/Memo
收稿日期:2018-10-22基金项目:四川省科技计划重点研发资助项目(2017GZ0432)