...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Electromagnetic Waves and Applications >Novel improved metamaterial transmission line and its application in wideband leaky-wave antenna with wide beam-scanning angle range and low cross-polarization
【24h】

Novel improved metamaterial transmission line and its application in wideband leaky-wave antenna with wide beam-scanning angle range and low cross-polarization

机译：新型改进的超材料传输线及其在宽波束扫描角范围和低交叉极化的宽带泄漏波天线中的应用

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this paper, a novel-improved metamaterial transmission line (MTM TL) is investigated and applied to design periodic leaky-wave antenna (LWA) with wide beam-scanning angle range and low cross-polarization. The improved MTM TL consists of metallic holes and interdigital fingers (which embedded in the main microstrip line). By introducing the metallic holes loaded in the interdigital fingers, the parasitic resonant modes of conventional MTM TL can be eliminated effectively. Considering the continuous phase constants changing from negative to positive values of the improved MTM TL under the balanced condition, a continuous beam-scanning property from backward to forward directions of the resultant periodic LWA can be obtained. For verification, a periodic LWA, which consists of 20 unit cells of the improved MTM TL, is fabricated and measured. The measured and simulated results are in good agreements with each other in all condition. According to the measured results, the fabricated periodic LWA operates from 3.38 to 4.60 GHz with a bandwidth of 30.57%, and achieves a continuous beam-scanning property from backward -65 degrees to forward+71 degrees (including broadside radiation) over the operating frequency band. Moreover, the measured cross-polarization remains at a level of more than 30 dB below the co-polarization across the entire radiation region. The presented LWA should find promising applications in modern wireless communication systems due to these wonderful electromagnetic performances.
机译：本文研究了一种新型改进的超材料传输线（MTM TL），并将其用于设计具有宽波束扫描角范围和低交叉极化的周期性漏波天线（LWA）。改进的MTM TL包括金属孔和叉指（嵌入在主微带线中）。通过引入叉指中加载的金属孔，可以有效地消除传统MTM TL的寄生谐振模式。考虑到平衡状态下改进的MTM TL的连续相位常数从负值变为正值，可以获得从所得的周期性LWA的前后方向连续的光束扫描特性。为了进行验证，制造并测量了由20个改进的MTM TL单元组成的周期性LWA。在所有条件下，测量结果和模拟结果相互之间都具有良好的一致性。根据测量结果，制造的周期性LWA在3.38至4.60 GHz的频率范围内工作，带宽为30.57％，并在整个工作频率上实现了从后向-65度到正向+71度（包括宽边辐射）的连续光束扫描性能带。此外，在整个辐射区域内，测得的交叉极化保持在比共极化低30 dB以上的水平。由于这些出色的电磁性能，提出的LWA应该会在现代无线通信系统中找到有希望的应用。

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