Antenna with virtual magnetic wall

摘要

A radiation shield ( 36 ) includes a virtual magnetic wall (VMW), which is adapted to be placed between a radiating antenna ( 34 ) and an object ( 30 ) so as to reflect electromagnetic radiation emitted from the antenna in a given frequency band and having an electric field with a given polarization, away from the object. The electric field of the radiation reflected by the VMW is substantially in phase with the electric field of the emitted radiation incident on the VMW.