摘要
为定量研究电磁波与微带线的耦合终端响应问题,提出一种基于BLT方程的电磁波与微带线耦合分析方法,相比传统方法计算效率高、占用内存少。将PCB板上微带线等效为有耗传输线模型,对辐照平面波进行矢量分析并求解等效激励源,运用BLT方程研究不同入射方式、脉冲波形对微带线终端的影响,并对入射波与终端响应进行了时域、频域分析。研究表明:当入射波频率与微带线长度满足一定关系式时对微带线的耦合最强,耦合电压峰值达2.4mV;电场平行微带线入射比垂直PCB入射时的终端电压峰值大一倍;且同幅同脉宽的矩形脉冲较高斯脉冲和三角脉冲对微带线的耦合峰值电压大;不同波形的脉冲通过调节脉宽都可对微带线耦合终端电压达到mV量级。
In order to quantitatively study the coupling terminal response electromagnetic wave and microstrip line, a coupling analysis method was proposed based on the BLT equation. It greatly improve the computational efficiency and occupies less memory, compared with traditional methods. The microstrip line on the printed circuit board （PCB） was equivalent to a lossy transmission line, and the plane wave vector was analyzed and the effective excitation source was solved, The influence of different incident waves and incidence angles on the microstrip line terminal was investigated using the BLT equation. The time-domain and frequency-domain analyses on the incident wave and terminal response were performed. The results show that, when the frequen- cy of the incident wave has a certain relationship with the microstrip line, the peak coupling voltage reaches a maximum of 2.4 mV the terminal peak voltage, when electric field is parallel to the microstrip line, is twice that for electric field perpendicular to the PCB the peak coupling voltage of the microstrip line caused by rectangular pulses is larger than those for Gaussian pulses and triangular pulse with the same amplitude and pulse width the terminal coupling voltage could reach millivolt level by adjusting the pulse width of different pulses.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2013年第5期1241-1246,共6页
High Power Laser and Particle Beams
基金
国家高技术发展计划项目
国家自然科学基金项目(61201056)
关键词
微带线的耦合
BLT方程
等效激励源
终端响应
峰值电压
microstrip line coupling
BLT equation
equivalent excitation source
terminal response
peak voltage
