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newFASANT

Frequently Asked Questions

General

  • What is newFASANT?

    The newFASANT Suite is an EM Simulation software for the analysis, study and/or design of a wide range of cases. It can be used both for academic and professional purposes, within the fields of aerospatiale/aeronautic applications, automotive industry, communications, radar and others.

  • How can I obtain newFASANT?

    You can contact us through e-mail or the contact form and we will get in touch with you. We will happily address any questions and provide an updated price list. If you are located in any of the countries with an official newFASANT distributor you can contact our distributor and request the price list.

  • How do I install newFASANT?

    We provide a self-contained installer that should make all the process transparent for you. If you have any difficulty with the installation we will be glad to help you.

  • Which platforms do you support?

    At the present time we support x64 Windows and GNU/Linux platforms. Please contact us for other options.

  • Do I need to purchase the full Suite, even if I do not need all the functionality?

    No. It is possible to purchase separate modules in order to address the kind of applications that you need. We maintain a wide list of modules for this exact reason: to provide just the functionality that the customer needs. If you need to expand your range of applications in the future you can purchase additional modules.

  • Do you provide any support with the purchase?

    Yes, we provide technical support with every purchase, and will send updated releases including bug fixes and other improvements. We will also address any inquiry regarding hands-on use of any of the functionalities of our software.

  • How do I start using this software?

    We are trying to make newFASANT as user-friendly as possible, even considering that it is a very powerful EM simulator. We provide extensive documentation in our web site that can also be downloaded as pdf files. These documents are also included with every release of our software. We have video tutorials in our YouTube channel and training examples inside the documentation. Finally, we are always happy to help our customers with any technical questions, and are willing to set up videoconference demonstrations if any point is not clear to them.

  • I have very special needs that are not covered by the modules you provide. Is there any solution for this?

    Yes. We are very flexible and willing to provide customized solutions. Please contact us and give details of the applications you need to simulate and we will get in touch with you.

  • Can I take the results out of newFASANT?

    All the results obtained with newFASANT can be exported as text files to be processed and/or visualized using external tools.

  • What do you mean by hybridization, and what are the methods for it?

    Hybridization is the combination of two or more EM approaches, for instance the following combinations:

    • MoM-GTD
    • MOM-PO
    • GTD-PO

    We have several hybridizations in newFASANT: for instance, we can compute the radiation pattern of an antenna using MoM and later import this radiation pattern in the GTD module to obtain the radiation pattern considering the interaction of the antenna with the platform. The GTD-PO module hybridizes GTD and PO. This module automatically classifies the surface to be treated using PO or using GTD.

  • Why do I get the “Can’t load result files” error?

    This message appears when the results have not been generated due to some reason, for instance the solver stopped suddenly due to some error.

  • What is full wave analysis?

    A full wave analysis does not use assumptions for the shape and amplitudes of currents and fields. MoM and FDTD are methods for full wave analyses. GTD and PO are asymptotic methods (non a full wave analysis)

  • Also, the development of architectures and paradigms for the parallelization of computer codes are playing a very important role in the expansion of the scope of rigorous analysis methods.

    Yes, that is absolutely true.

  • Where is Ground plane exactly required?

    Ground plane is required when you want to analyze the monostatic and/or bistatic radar cross section of a target on or over an infinite perfect electric conductor or dielectric ground plane, such as land, sea, etc., for instance: a ship over the sea.

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Modeling

  • Can I generate my full geometrical model using newFASANT?

    Probably. We include many general CAD features, primitives and geometric operations in order to generate and manipulate geometries. However, it is also possible to generate the geometry using external tools and import them in newFASANT.

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MoM Solver

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Meshing

  • What are the mesh elements for different methods?

    For MoM: curved conformed quadrangles with sporadic curved conformed triangles.

    For PO and IR: flat triangles

    GTD works directly with the NURBS surfaces without any meshing. In this case, the meshing step that the user sees running the module only indicates that the matrix visualization between surfaces is being processed.

  • What are the differences between meshing options?

    In the User Guides you can find a description of the different parameters that can be used in the meshing process. Regarding recommendation for setting the mesh density on MOM:

    • Electrically large and smooth surfaces (RCS applications, reflectors antennas) can be analyzed using a low sampling density for instance 6 div/wavelength or less for combining enough accuracy and efficiency.
    • In most problems a sampling density of 10 div/wavelength gives enough accuracy.
    • In some problems with geometrical with details very small compared with the wavelength high sampling densities (20, 40, 100 ....) could be required.
  • What is the application for Curvature Meshing in PO-Module?

    This technique provides a non-regular mesh with patches generated to discretize the curvatures and edges of the geometry with a quasi-adaptive method. The generated meshes usually are lesser dense than the ones provide with the Regular Meshing strategy.

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PO Solver

  • What is the difference between PO in the MOM module and PO in the PO module?

    PO in MOM does not consider multiple bounces and shading between the parts of a body. It uses the mesh of MoM. PO in the PO, GTD-PO and ISAR-PO modules can consider multiple bounces if the user selects 2 or more bounces in the parameters settings. These modules consider the shading between the parts of the target and use their own mesh based on flat triangles.

  • Is PO Method same in both PO-Module & in GTD-PO Module?

    There are small differences. In PO-module always the PO is computed in the far field. However in GTD-PO the PO can be computed in both near and far field

  • In PO Module what is the use of Duplicate Normal option and the application

    In the PO module, the surfaces are only considered on the region pointed by its normal vectors. This option is used to consider both sides (according with the normal vector directions) of the selected objects. It is recommended for use with open surfaces that contribute to the results in the two normal vector possible directions.

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GTD Solver

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GTD-PO Solver

  • What is the difference between PO in GTD-PO module and GTD-PO?

    When in the GTD-PO module the user selects GTD-PO the program analyzes the surfaces and source position and classifies automatically the surfaces to be simulated using GTD or PO. When in the GTD-PO module the user selects (in the setting parameters) PO the program uses PO for all the facets.

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