| 摘要: |
| 介绍了盘锥天线的性能、设计原理，分析了各个参数对天线性能的影响。通过改变
天线结构，即在圆盘和下锥体之间引入一个上锥体，将盘锥天线和双锥天线结合起来，既保
持了盘锥天线的特性，又减少了圆盘和下锥体的分布电容，从而有效地增加了其带宽。在理
论计算的基础上利用ANSOFT HFSS软件对设计出的新型盘锥天线进行仿真优化，优化的结果
表明天线覆盖了从300 MHz到10 GHz的频带，在33∶1的带宽范围内驻波比基本小于
3，该方法有效地展宽了带宽。 |
| 关键词: 超宽带；盘锥天线；双锥天线 天线仿真 |
| DOI： |
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| 基金项目: |
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| Design of an Ultra-Wideband Discone Antenna |
| SHAN Tuan-biao,LEI Zhen-ya,XIE Yong-jun,XING Lian-fa,LI Ping |
| (Key Laboratory of Antennas and Microwave Technology, Xidian University, Xi′a
n 710071, China;Key Laboratory of Antennas and Microwave Technology, Xidian University, Xi′a
n 710071, China;
EMC Lab，Beijing University of Aeronautics and Astronautics, Beijing 100083,
China) |
| Abstract: |
| The discone antenna′s performance, design pri
nciple and the effect of its parameters on the antenna performance are described
. T
hrough the introduction of a cone between the plate and the cone below, combinin
g the discone antenna with the biconical antennas, the character of discone ante
nna remains unchan
ged. The change of the structure reduces the capacitance between the plate and t
he cone below, and extends the discone antenna bandwidth. The ANSOFT HFSS soft
ware is used to optimize the designed discone antenna based on the theoretical c
alculation and the result shows the bandwidth covers a 33∶1 bandwidth from 300
MHz to 10 GHz, within which the VSWR is almost below 3. With this method the ban
dwidth is extended effectively. |
| Key words: ultra-wideband(UWB) discone antenna biconical antenna antenna simulation |
《电讯技术》编辑部 