Physical Optics Reflector
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.
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.
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.
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.