CAJ | 학술논문

利用有限积分法对电磁脉冲与腔体孔缝耦合特性进行了研究。选取窄缝为mm量级微小孔缝作为研究对象，借助耦合函数，在矩形多峰共振公式的基础上，分析了正方形环形孔缝共振频率点，同时开展了不同腔体尺寸、缝隙位置和缝隙组合对耦合特性影响的研究。结果表明：正方形环形孔缝多峰共振频率点取决于垂直入射电场的窄缝长边尺寸，所得多峰共振频率点的解析计算值和仿真计算值基本一致，相对误差在5％以内；耦合进入腔体的电场强度由腔体和孔缝尺寸共同决定，窄缝附近存在明显的场增强效应，发生了强烈共振，狭缝处电场幅值高达入射脉冲的60倍。
이용유한적분법대전자맥충여강체공봉우합특성진행료연구。선취착봉위mm량급미소공봉작위연구대상，차조우합함수，재구형다봉공진공식적기출상，분석료정방형배형공봉공진빈솔점，동시개전료불동강체척촌、봉극위치화봉극조합대우합특성영향적연구。결과표명：정방형배형공봉다봉공진빈솔점취결우수직입사전장적착봉장변척촌，소득다봉공진빈솔점적해석계산치화방진계산치기본일치，상대오차재5％이내；우합진입강체적전장강도유강체화공봉척촌공동결정，착봉부근존재명현적장증강효응，발생료강렬공진，협봉처전장폭치고체입사맥충적60배。
Coupling processes of electromagnetic pulse into cavities with slot are investigated by finite integral method ( FIT) .,Selecting slots with dimension of several millimeters as research object.By coupling function, this paper analyses the square slot resonance frequency based on multi-peak resonance formula.At the same time, coupling effects by the different cavity size,slot position,the slot combination are analyzed.It is found that a square slot multi-peak resonant frequency point depends on the dimensions of the slot of the vertical in-cident electric field,and the theory expression matches the simulation results well with relative deviation below 5%.Electric field intensity in the cavity is determined not only by cavity dimension,but also by the slot dimen-sion,a strong resonance occurs at the slot where the coupling coefficient is maximum,and the electric field am-plitude is 60 times as high as the incident pulse.