Dipole moments and near field potentials

✍ Scribed by Kleinman, R. E.

• Book ID: 104748040
• Publisher: Springer
• Year: 1973
• Tongue: English
• Weight: 191 KB
• Volume: 27
• Category: Article
• ISSN: 0003-6994
• DOI: 10.1007/bf00382496

✦ Synopsis

Expressions are derived for t h e m o m e n t s of electric a n d m a g n e t i c dipoles whose rar field is e q u i v a l e n t to t h e Rayleigh t e r m in t h e rar field of a given r a d i a t i n g electromagnetic field. T h e e q u i v a l e n t dipole m o m e n t s are expressed as integrals over a n a r b i t r a r y closed surface of t h e near electrom a g n e t i c fields a n d simplification is achieved b y rewriting these expressions in t e r m s of t h e static p o t e n t i a l s from which t h e near fields are derived. The results are valid regardless of t h e c o m p l e x i t y of t h e field a n d t h e m e d i u m w i t h i n t h e i n t e g r a t i o n surface as long as t h e exterior is homogeneous, isotropic a n d source-free.