超宽带盘锥天线设计.pdf

51 1 Vol . 51 No. 1 2011 1 Telecommunication Engineering Jan. 2011 : 1001- 893X( 2011) 01- 0093- 05 超 宽带盘 锥 天线 的设计 1 1 1, 2 1 1 山团彪 , 雷振亚, 谢拥军 , 邢连发, 李 平 ( 1. , 710071; 2. , 100083) : 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 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 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331 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 : 超宽带; 盘锥天线; 双锥天线; 天线仿真 :TN015;TN82 : A doi: 10. 3969/ . issn . 1001- 893x. 2011. 01. 019 Design of an Ultra- Wideband Discone Antenna 1 1 1, 2 1 1 SHAN Tuanbiao , LEI Zhenya , XIE Yongj un , XING Lianf a , LI Ping ( 1. Key Laboratory of Antennas and Microwave T echnology, Xidian University, Xian 710071, China; 2. EMC Lab , Bei ing University of Aeronautics and Astronautics, Bei ing 100083, China) Abstract :The discone antennas 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 opt imize the designed discone antenna based on the theoretical calculation and the result shows