Electromagnetic wave scattering by small perfectly conducting particles and applications

نویسنده

  • A. G. Ramm
چکیده

A rigorous theory of electromagnetic (EM) wave scattering by one and many perfectly conducting small bodies of an arbitrary shape is developed. Equation for the effective field is derived in a medium in which many small particles are distributed. A method is given to change the refraction coefficient of a given medium in a desired direction by embedding into this medium many small particles.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Electromagnetic wave scattering by many small perfectly conducting particles of an arbitrary shape

New physical phenomena are predicted in the medium in which many small perfectly conducting particles are embedded: a change in the refraction coefficient, which may become spatially inhomogeneous, and a matrix differential conductivity operator which appears in the region, where the small conducting bodies are embedded. An analytical formula is derived for the electromagnetic (EM) field scatte...

متن کامل

Electromagnetic wave scattering by many conducting small particles

A rigorous theory of electromagnetic (EM) wave scattering by small perfectly conducting particles is developed. The limiting case when the number of particles tends to infinity is discussed. PACS: 03.40.Kf MSC: 78A45, 35J25

متن کامل

Scattering of a Plane Wave by a Small Conducting Sphere

Discuss the scattering of a plane electromagnetic wave of angular frequency ω that is incident on a perfectly conducting sphere of radius a, which is at rest, when the wavelength obeys λ a (ka 1). Calculate the electromagnetic fields and the Poynting vector everywhere, and interpret these fields in both the near and far zones. Consider incident electromagnetic waves of both linear and circular ...

متن کامل

Scattering of a Plane Electromagnetic Wave by a Small Conducting Cylinder

Discuss the scattering of a plane electromagnetic wave of angular frequency ω that is normally incident on a perfectly conducting cylinder of radius a (in vacuum) when the wavelength obeys λ a (ka 1). Comment also on the limit of large cylinders, ka 1, via the optical theorem. Extend the discussion to the case of small conducting elliptical cylinders, which have (small) flat strips as a limit. ...

متن کامل

Short Communication On the scattering of point-generated electromagnetic waves by a perfectly conducting sphere, and related near-field inverse problems

A spherical electromagnetic wave is scattered by a bounded perfectly conducting obstacle. A generalization of the plane-wave optical theorem is established. For a spherical scatterer, low frequency results are obtained by approximating the known exact solution (separation of variables). In particular, a closed-form approximation of the scattered wavefield at the source of the incident spherical...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2014