The retrieving of the phase of a field radiated by a planar source over a plane in near zone is investigated by formulating it as the inversion of a quadratic operator. To solve the problem, a representation of the near field is adopted which takes into account both the dimension and the location of the source. This makes it possible to derive a new uniqueness result which allows one of the main Limitations of previous methods to be removed. The conditions to be met in order to obtain a completely reliable solution procedure are then briefly illustrated by exploiting the quadraticity of the operator to be inverted. Finally, the iterative solution algorithm is described and examples are shown.
Unique phase reconstruction of near fields over planes
LEONE, Giovanni;PIERRI, Rocco
1996
Abstract
The retrieving of the phase of a field radiated by a planar source over a plane in near zone is investigated by formulating it as the inversion of a quadratic operator. To solve the problem, a representation of the near field is adopted which takes into account both the dimension and the location of the source. This makes it possible to derive a new uniqueness result which allows one of the main Limitations of previous methods to be removed. The conditions to be met in order to obtain a completely reliable solution procedure are then briefly illustrated by exploiting the quadraticity of the operator to be inverted. Finally, the iterative solution algorithm is described and examples are shown.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
