| 圆锥螺旋天线的脉冲信号发射色散特性与数值仿真 | |
| 陈多 ; 袁建生 ; CHEN Duo ; YUAN Jian-sheng | |
| 2010-06-10 ; 2010-06-10 | |
| 关键词 | 圆锥螺旋天线 宽频带脉冲 天线色散 时域有限差分法 conical spiral antenna, ultra wide band pulse, dispersive property, FDTD TN823 |
| 其他题名 | Numerical simulation of dispersive properties for conical spiral antenna used for pulse radiation |
| 中文摘要 | 圆锥螺旋天线是一种宽频带天线。然而,由于存在色散问题,使得发射的信号发生扭曲,对于加载的宽频带脉冲信号,通过该天线发射出去的并不是与激励相类似的脉冲电磁波,而是一个振荡波。基于时域有限差分法(FDTD)对圆锥螺旋天线进行了仿真,验证了该天线脉冲发射时不同频率分量信号所对应的天线有效作用区域特性,分析了近场和远场的电磁波波形,由此来阐述圆锥螺旋天线的色散与发射特性。仿真得到的结果,对于指导天线设计与相关试验具有一定意义。; The conical spiral antenna (CSA) is a classical ultra-wide-band antenna. However, because of its dispersive properties, the loaded pulse signal with a ultra-wide-band is distorted, the waveform observed in free space is of vibrating form. In this paper, the CSA is simulated by using the finite differential time domain (FDTD) method. The active region when the CSA works at different frequency is examined, the electromagnetic waveform in near-field and far-field is analyzed, and the dispersive properties and radiation characteristics of the CSA are illustrated. The simulation results are valuable to the design of CSA and practical experiments. |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/62733]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 陈多,袁建生,CHEN Duo,等. 圆锥螺旋天线的脉冲信号发射色散特性与数值仿真[J],2010, 2010. |
| APA | 陈多,袁建生,CHEN Duo,&YUAN Jian-sheng.(2010).圆锥螺旋天线的脉冲信号发射色散特性与数值仿真.. |
| MLA | 陈多,et al."圆锥螺旋天线的脉冲信号发射色散特性与数值仿真".(2010). |
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