【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。更多还原

【Abstract】 The discone antenna′s performance,design principle and the effect of its parameters on the antenna performance are described.Through the introduction of a cone between the plate and the cone below,combining the discone antenna with the biconical antennas,the character of discone antenna remains unchanged.The change of the structure reduces the capacitance between the plate and the cone below,and extends the discone antenna bandwidth.The ANSOFT HFSS software is used to optimize the designed discone antenna based on the theoretical calculation 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 bandwidth is extended effectively.更多还原