J4 ›› 2010, Vol. 37 ›› Issue (5): 966-970.doi: 10.3969/j.issn.1001-2400.2010.05.033

• 研究论文 • 上一篇    下一篇

一种宽频带低交叉极化伞形印刷振子阵列天线

陈盼;曹祥玉;高军   

  1. (空军工程大学 电讯工程学院,陕西 西安  710077)
  • 收稿日期:2009-07-07 出版日期:2010-10-20 发布日期:2010-10-11
  • 通讯作者: 陈盼
  • 作者简介:陈盼(1982-),男,空军工程大学硕士研究生,E-mail: chenpan9917@126.com.
  • 基金资助:

    国家自然科学基金资助项目(60671001)

Wide-band and low cross-polarization array antenna design  using the umbrellalike printed dipole

CHEN Pan;CAO Xiang-yu;GAO Jun   

  1. (Telecommunication Eng. Inst., AFEU, Xi'an  710077, China)
  • Received:2009-07-07 Online:2010-10-20 Published:2010-10-11
  • Contact: CHEN Pan

摘要:

为了增加天线带宽及降低交叉极化,采用中心balun馈电双层伞形印刷振子天线结构,设计了一种新型宽带阵列天线.仿真表明,天线单元相对阻抗带宽(驻波比小于等于2)为38.8%,交叉极化电平小于-45dB,前后比优于16.4dB.阵列天线带宽达到39.4%,H面交叉极化电平小于-48dB,增益达到16.2dB.

关键词: 印刷偶极子, 宽带, 低交叉极化, 阵列天线

Abstract:

In order to increase the bandwidth and decrease the cross-polarization of the antenna, a novel broadband printed dipole antenna is proposed, which employs a double-layered and umbrellalike printed dipole with an integrated balun feed structure. Simulation results indicate that the relative impedance bandwidth of the double-layered dipole antenna is 38.8% (VSWR≤2). The front-to-back ratio is better than 16.4dB and the cross-polarization level is less than -45dB. The bandwidth of the array antenna is 39.4%, while the cross-polarization of the H-plane is less than -48dB, and the gain of the array is 16.2dB.

Key words: printed dipole, broadband, low cross-polarization, array antenna

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