中山大学学报(自然科学版)
中山大學學報(自然科學版)
중산대학학보(자연과학판)
ACTA SCIENTIARUM NATURALIUM UNIVERSITATIS SUNYATSENI
2010年
3期
28-33
,共6页
波导%微扰法%有限电导率
波導%微擾法%有限電導率
파도%미우법%유한전도솔
waveguide%perturbative method%finite conductivity
对非理想导体腔壁柱形波导的微扰法作了重新表述.所得计算修正本征值的方程形式上与过去的结果颇为不同.与过去的相应结果比较,该结果物理意义更清楚,形式更简洁凝练,且更便于实际计算.对过去忽视的一些特殊情况作了讨论.以同轴线为例给出了具体计算结果.
對非理想導體腔壁柱形波導的微擾法作瞭重新錶述.所得計算脩正本徵值的方程形式上與過去的結果頗為不同.與過去的相應結果比較,該結果物理意義更清楚,形式更簡潔凝練,且更便于實際計算.對過去忽視的一些特殊情況作瞭討論.以同軸線為例給齣瞭具體計算結果.
대비이상도체강벽주형파도적미우법작료중신표술.소득계산수정본정치적방정형식상여과거적결과파위불동.여과거적상응결과비교,해결과물리의의경청초,형식경간길응련,차경편우실제계산.대과거홀시적일사특수정황작료토론.이동축선위례급출료구체계산결과.
The perturbative method for calculating the effect of imperfectly conducting walls on the propagation of electromagnetic waves in cylindrical waveguides is reformulated. The equation for calculating the corrected eigenvalues is obtained in a quite different form. In comparison with the previous result, it is physically more transparent, formally simpler and more compact, and more convenient for practical calculations. Special cases overlooked previously are discussed. Results on the coaxial line are presented.