紧凑型毫米波双极化阵列天线

基金项目: 航空科学基金资助项目(2008ZC51044)

Compact MMW dual-polarized array antenna

School of Electronic and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要: 设计了一种紧凑型毫米波双极化微带阵列天线.首先对双极化天线单元进行了优化设计,该天线单元采用共面微带线馈电和缝隙耦合馈电相结合的混合馈电方式,单元采用反相馈电技术,既提高了天线极化隔离,同时也简化了天线结构.其次,采用并联馈电方式进行天线阵列设计.最后,对该天线阵列进行了加工测试,结果表明该天线驻波比小于2.0,极化隔离大于35 dB,水平极化增益大于12 dB,垂直极化增益大于11.5 dB.
- 毫米波 /
- 双极化 /
- 混合馈电 /
- 微带天线 /
- 紧凑型
Abstract: A compact dual-polarized millimeter wave(MMW) microstrip array antenna was designed. Firstly, the antenna element was designed. The antenna element was fed by coplanar microstrip line and coupling slot. The high polarized-isolation could be obtained by the mixed feed points and reversed phase technology. The antenna array was designed by shunt fed. Finally, this antenna array was fabricated and measured. The measured data shows that the antenna VSWR is less than 2.0 and the polarized-isolation is 35 dB. And the antenna gain of horizontal polarization beam is over 12 dB while that of vertical polarization beam is over 11.5 dB.
- millimeter wave(MMW) /
- dual-polarized /
- mixed feed points /
- microstrip antenna /
- compact

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