• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>IEEE International Conference on Communication Technology >Influence of plasma on antenna and design of tunable matching network
【24h】

Influence of plasma on antenna and design of tunable matching network

机译：等离子体对天线的影响及可调匹配网络的设计

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

To solve the “black-out” problem of hypersonic vehicle, the impact of plasma on monopole antenna is analyzed in this paper with a tunable matching network proposed subsequently. The plasma sheath around the vehicle with a speed of 20Ma and a height of 60km is simulated through fluid theory to obtain the plasma distribution around the vehicle. Then, the monopole antennas with different electron concentration are discussed, which are compared with the case of free space. The results demonstrate that the center frequency and the surface current of antenna vary in different degrees for different electron concentration. Finally, to effectively improve the performance of antenna, a tunable matching network is designed by matching the impedance of the plasma and changing the capacitance of the varactors.
机译：为了解决高超声速飞行器的“停电”问题，本文分析了等离子体对单极天线的影响，并提出了可调谐匹配网络。通过流体理论模拟了速度为20Ma，高度为60km的车辆周围的等离子体鞘层，从而获得了车辆周围的等离子体分布。然后，讨论了具有不同电子浓度的单极天线，并将其与自由空间的情况进行了比较。结果表明，不同的电子浓度，天线的中心频率和表面电流有不同程度的变化。最后，为了有效地改善天线的性能，通过匹配等离子体的阻抗并改变变容二极管的电容来设计可调谐的匹配网络。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号