IEEA - Theoritical Studies in Electromagnetism

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Zephir (PO)

Zephir overview

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Physical optics code



ZEPHIR is a software based on the physical optics theory. It allows calculating the radar cross section of electrically large structures.



A triangle meshed structured is used to apply the PO technique completed with the PTD. The geometrical optic magnetic field is obtained with up to 5 reflections. The geometrical optics part is powered by RayBooster software developed by HPC-SA. This library provides a very fast ray/triangle intersection computation. ZEPHIR can be optionally hybridised with ICARE MoM software.



ZEPHIR is integrated onto the CAD software GID. The result is a user-friendly interface. The geometry can be directly designed with GID. GID's import features allow using most of the common CAD formats (IGES, DXF, VDA,…). A triangle mesh is generated by GID. It is directly used by ZEPHIR. The calculated RCS is available in a text file. To make its interpretation easier, it can also be directly visualized in the geometry.

Zephir user guide

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Click here to open Zephir user guide in a new window

Or download the Zephir manual in PDF format

Last Updated on Tuesday, 01 March 2011 16:10

Zephir examples

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Some examples of geometries simulated with Zephir :

F16 aircraft 1 GHz bistatic RCS. This complex structure is imported in the software from an IGES file. The electromagnetic data are entered with the user interface.
Last Updated on Friday, 30 April 2010 15:26
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