GRASP has established itself long ago as the industry standard for precise modelling of reflector antennas. It builds on decades of research and development in numerical methods for solving EM problems, and the thorough testing by the demanding satellite industry vouches for accuracy and efficiency.

  • Easy definition of single and dual reflector geometries by built-in wizards
  • Support for several reflector shapes and materials
  • Mathematical and numerical (measured) feed definitions
  • Near-field and far-field calculations of vector fields
  • Flexible analysis approach enables the calculation of individual scattering components of the radiated field
  • Highly efficient PO algorithms, GTD and optional moment-method solver
  • Increased productivity through efficient project file handling
  • Several optional add-ons - see links in the left paneThe Method of Moments (MoM) GRASP add-on is a very accurate analysis tool that is used for general scattering problems, including problems where the prerequisites of the high-frequency methods used in GRASP (PO/GTD) are not fulfilled. The MoM add-on module for GRASP is ideal for antenna designers who require extremely accurate analyses of electrically small and moderately sized sub-reflectors, struts, plates, and general scattering objects that cannot be defined in the standard edition of GRASP.
    The MoM solver has been specifically designed by TICRA to provide high accuracy for the curved surfaces encountered in reflector antenna problems. This implementation is very efficient and enables analysis of even quite large scatterers on a standard PC. The MoM implementation lists the following core features:
    • Automatic meshing using curved patches given by 4, 9, 16, or 25 interpolation points
    • Adaptive selection of current-expansion using near-orthogonal higher-order basis functions of up to 12th order
    • Efficient multi-threaded matrix-fill routines and packed matrix storage for symmetric matrices
    • Direct or iterative solver using efficient pre-conditioner tailored for higher-order basis functions

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