• Contains the multi-feed and the shaped reflector models
  • Full PO modelling of single- and multi-feed reflector antennas
  • Easy configuration of reflector systems based on beam size or reflector diameter
  • Supports center-fed and offset reflectors
  • Linearly and circularly polarized feed horn models
  • Fast and accurate optimisation of shaped reflector systems and contoured beams using multi-feed reflectors
  • Includes the analytical reflector module


  • Accurate evaluation of antenna directivity for better link budgets
  • Allows for easy and accurate investigation of the impact of reflector size and offset for system-level trade-off studies
  • Easy export of antenna geometry and station files as GRASP and POS projects
  • Optimisation of shaped reflectors with the same algorithms used in POS

Design of shaped reflector antennas

Easily set up and optimise shaped reflectors for contoured beams. After you select only a few key parameters, such as reflector diameter and offset, SATSOFT can optimise the shape of the reflector to create a contoured beam for a given coverage polygon. The optimisation uses the same proven algorithm as POS.

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Model of an offset reflector fed by single or dual mode feeds in Physical Optics Reflector model

Easy setup of multi-feed reflector antennas

By Specifying a minimum of parameters such as the reflector diameter or desired beamwidth, SATSOFT will set up a reflector system based on simple design rules to generate a blockage-free array-fed system. Far-fields from linearly or circularly polarised reflector antennas fed by fundamental-mode or dual-mode feeds are computed using a fast and accurate PO implementation. The built-in optimiser can find both the optimum layout and the optimum excitations of the feed array for creating a contoured beam for a given coverage polygon.

Design of HTS payloads

Scan aberration and spillover loss are accounted for in the analysis to provide accurate performance data for the scanned beams in multiple-spotbeam reflector systems with 3- or 4-color frequency reuse, or in the beams generated by a digital beamformer.

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Accurate modeling of frequency dependence

The physical optics module allows you to easily investigate the influence on the antenna performance of changing frequencies. This is a useful feature, e.g., for estimating the impact of different receive and transmit bands.

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Export POS and GRASP projects

The Physical Optics Reflector add-on allows you to export the antennas created in SATSOFT to POS and GRASP projects. When exporting to POS the project contains a fully configured optimisation project with the station files used in SATSOFT, thereby allowing you to use SATSOFT as a preprocessor for your POS optimisations. For shaped reflector antennas it is also possible to setup dual-reflector systems for export to POS and GRASP.

See video (YouTube)

Contact us

Your project may be complex, but we keep things simple. If you have any questions about our software or services, or you need expert consultancy, we are here to help.

Miguel Fullana


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