作　　者： ; ; ; ; ;

机构地区： 泉州师范学院物理与信息工程学院

出　　处： 《物理学报》 2010年第8期5235-5240,共6页

摘　　要： 在经典电动力学的框架下,研究了磁各向异性介质中的电磁辐射问题,得到了磁偶极和电四极在磁各向异性介质中的辐射功率表达式.进一步地,通过把各向同性介质中的μrii代入所得辐射功率表达式,得到了与文献相符合的结果,验证了所得结果的正确性.研究结果表明磁偶极和电四极在磁各向异性介质中的辐射功率大小与磁各向异性介质的μrii大小有关,对判断磁偶极和电四极在磁各向异性介质中的辐射效果有较大的帮助. Under the frame of classical electrodynamics,the electromagnetic radiation in magnetic anisotropic medium is investigated in this paper. The radiation power expressions for magnetic dipole and electronic quadrupole in magnetic anisotropic medium are in derived. Furthermore,the results,which are achieved by inserting the μr in isotropic medium into the obtained expressions,are agreed with the references. And the correctness of the obtained expressions is verified. The research results demonstrate that the radiation powers of magnetic dipole and electronic quadrupole are related to the μr in magnetic anisotropic medium. This conclusion is very helpful for determining the radiation effects of magnetic dipole and electronic quadrupole in magnetic anisotropic medium.

关 键 词： 磁各向异性介质 磁偶极 电四极 辐射功率

分 类 号： [O441]

领　　域： [理学] [理学]