光導(dǎo)開關(guān)產(chǎn)生的非線性電脈沖的傳輸特性

針對光導(dǎo)開關(guān)產(chǎn)生的非線性電脈沖進(jìn)行合理化近似并建立數(shù)學(xué)模型。對非線性電脈沖的不同波形的傳輸特性進(jìn)行了理論推導(dǎo)和數(shù)值求解，與中心頻率相同的矩形脈沖和梯形脈沖的傳輸特性進(jìn)行了比較。結(jié)果表明：上升沿愈陡，直線段愈水平時(shí)，非線性電脈沖與矩形脈沖的傳輸特性愈趨近。該結(jié)論為非線性光導(dǎo)開關(guān)在傳輸領(lǐng)域內(nèi)的廣泛應(yīng)用提供了理論依據(jù)。
關(guān) 鍵 詞 非線性電脈沖; 數(shù)學(xué)模型; 物理原理; 數(shù)值求解

Abstract Maths model of nonlinear electric pulse generated by PCSS’s is built. Transmission Characteristics of various waveforms of it are deduced theoretically and analysised numerically. Compared with rectangle and isosceles trapezoid electric pulses,it is indicated that transmission Characteristics of Nonlinear Electric Pulse is more closer to that of rectangle pulse,when the risetime is shorter and the beeline is more horizontal. Theoretical basis is provided for applications of nonlinear photoconductive switches in the transmission of electromagnetic energy.
Key words nonlinear electric pulse; maths model; physical principle; numerical analysis