导体椭球的自然频率
THE NATURAL FREQENCIES OF CONDUCTING ELLIPSOIDS
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摘要: 本文用矩量法求解磁场积分方程的方法,计算了导体球,旋转椭球(1∶1∶2)和椭球(1∶2∶3)的若干自然频率。结果表明:自然频率有简并和分裂现象。分析了自然频率的简并,分裂与目标对称性的关系。Abstract: The natural freqencies of a perfectly conducting sphere, a prolate spheroid (1:1:2) and a ellipsoid (1:2:3) are numerically solved by moment method with the magnetic field integral equation. The results reveal a splitting of natural freqencies when a sphere is deformed into a prolate spheroid or a ellipsoid.
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L.B. Felsen, Transient Electromagnetic Field, Springer-Verlag, New York, (1976), Chap. 3.[2]R. Mittra著,计算机技术在电磁理论中的应用,人民邮电出版社,1983年,第四章.[3]张凤林,导体椭球的自然频率,国防科技大学硕士论文,长沙,1988年.[4]L.Marlin, IEEE Trans on AP, AP-22(1974), 266-274.
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