基于BLT方程的微带线电磁耦合终端响应 |
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引用本文: | 彭强,周东方,侯德亭,胡涛,王利萍,韩晨. 基于BLT方程的微带线电磁耦合终端响应[J]. 强激光与粒子束, 2013, 25(5): 1241-1246. DOI: 10.3788/HPLPB20132505.1241 |
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作者姓名: | 彭强 周东方 侯德亭 胡涛 王利萍 韩晨 |
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作者单位: | 1.解放军信息工程大学 信息系统工程学院, 郑州 450002 |
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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2.4 mV;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。
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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 |
收稿时间: | 2012-09-06 |
Electromagnetic coupling terminal response for microstrip line based on BLT equation |
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Affiliation: | 1.College of Information System Engineering,PLA Information Engineering University,Zhengzhou 450002,China |
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Abstract: | 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 frequency 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. |
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