| 摘要: |
| 在共面紧凑型光子晶体结构(Uniplanar Compact Electromagnetic Bandgap，UC-EBG)
基础上加载集总电阻，设计出一种新型吸波结构，并分析了其吸波原理。将其加载于
微带天线，用于减缩天线带内雷达散射截面(Radar Cross Section，RCS)。仿真结果表明，
在谐振频点，该吸波结构的吸波率达到998%。加载该结构后，天线的辐射性能基本保持不
变，而对于垂直入射的TE波和TM波，其带内RCS分别减缩了26.22 dB和15.08 dB。
实测结果与仿真结果较为吻合，证实了该结构可以减缩微带天线的带内RCS，从而提高其带
内隐身性能。 |
| 关键词: 微带天线 吸波结构 UC-EBG 带内隐身 RCS缩减 |
| DOI：10.3969/j.issn.1001-893x.2013.07.023 |
|
| 基金项目:国家自然科学基金资助项目（61271100）；陕西省自然科学基础研究重点项目（2010JZ010）；陕西省自然科学基础研究项目（2012JM8003） |
|
| Design of an absorber based on UC-EBG and its application in microstrip antenna |
| ZHANG Hao,CAO Xiang-yu,YANG Huan-huan,ZHAO Yi,ZHENG Qiu-rong |
| () |
| Abstract: |
| A novel absorber is proposed based on Uniplanar Compact Electromagnetic Bandgap
（UC-EBG） with lumped resistance, and its operating mechanism is analyzed. The
new absorber is loaded on microstrip antenna to reduce antenna′s in-band Rada
r Cross Section（RCS）.The simulated result shows that its absorptivity reaches
998% at operating frequency. The loaded antenna′s radiation performa
nce has not been influenced a lot, while for the incident wave of TE and TM mode
, the in-band RCS of antenna has declined by 26.22 dB and 15.08 dB respecti
vely. There is a good agreement between measured and simulated results, which ver
ifies that this absorber can be used for reduction of antenna′s in-band RCS so
as to improve its in-band stealth performance. |
| Key words: microstrip antenna absorber UC-EBG in-band stealth RCS reduction |
