| 摘要: |
| 在Yang X等人提出的SRR（Split Ring Resonator）天线结构基础上，在天线贴片上
设计出一个U型槽，通过改变该U型槽缝隙宽度、长度等参数，以不断调整阻带中心频率及带
宽，从而实现了一种具有陷波特性、能够屏蔽无线局域网（WLAN）信号干扰的超宽带天线。
仿真及测试结果
表明，改进前天线的工作频带为3～11 GHz（VSWR<2）,无陷波特性；而改进后的天
线在
4.4～5.7 GHz频率范围内具有良好的频带抑制特性，增益值最低可达到-15 dB，
并且在其它工作频段具有良好的辐射性能。 |
| 关键词: 超宽带天线 SRR天线结构 陷波 无线局域网 |
| DOI： |
|
| 基金项目:国家自然科学基金资助项目（60671001）；陕西省自然科学基金研究重点项目（SJ08-ZT06） |
|
| An Ultra Wideband Antenna with Band-notched Characteristic Based on SRR Structure |
| WANG Pan-pan,CAO Xiang-yu,MA Jia-jun |
| (Telecommunication Engineering Institute,Air Force Engineering University, Xi′a
n 710077,China) |
| Abstract: |
| Based on the SRR(Split Ring Resonator)-shaped UWB(Ultrawideband) antenna desig
ned
by Yang X,et al,a UWB antenna is implemented which shows bandnotched characte
ristic through a Usha
ped slot in order to reduce the interference of WLAN(Wireless Local Area Netwo
rk) signals. The frequency and
bandwidth of the stopbands can be adjusted by changing the width and length of t
he slot. The simulation and measurement results indicate that the passband of th
e previous
antenna is 3～11 GHz（VSWR<2）without bandnotched characteristic, while th
e
improved one has a stopband in 44～57 GHz in which the gain is below to -1
5
dB,and it has good radiational characteristics in the rest operating frequency
bands. |
| Key words: UWB antenna SRR antenna structure band notch WLAN |
《电讯技术》编辑部 