GRASP
Reach enhanced productivity with fast and accurate design and analysis of competitive reflector antenna solutions.
From early trade-off studies
to final validation
GRASP is TICRA’s dedicated software for reflector antenna analysis, developed and refined for more than 50 years in close collaboration with institutional and industrial customers. It combines highly efficient Physical Optics (PO), Physical Theory of Diffraction (PTD), Geometrical Optics (GO), and Geometrical Theory of Diffraction (GTD) methods for accurate and computationally efficient analysis of electrically large reflector systems.
Why GRASP
Enabling engineers to analyse and optimise
large reflector systems.
Build-in wizard
Use the Wizard for easy definition of single and dual reflector geometries
Field Calculations
Calculate near-field and far-field vector fields
Component library
Browse for mathematical feed models and import general feed definitions from file
Import of general feed definitions
Import from file and expansion in spherical modes
Easy definition
Define and analyse quasi-optical networks fast and easy
Transmit between antennas
Transmit computation of power between two antennas fast and easy
Advanced GTD algorithm
Prevent large reflector and scattering problems
BoR-MoM analysis
Analyse full-wave rotationally symmetric reflectors and lenses
Component library for common geometries
Browse conic surfaces, general quadrics, radomes, panels, rectangular and circular struts
Import of general reflector shapes
Import from data files
Design tool
Design your quasi-optical network
Key product highlights
Trust your results with GRASP.
- Reliable results
- Accurate analysis of reflectors
- Seamless integration with other products in TICRA Tools
- Guided design of quasi-optical networks
- Quick setup of complicated geometries
- Easy to import feed data from other software vendors or test ranges
Core capabilities
Everything you need – in one environment.
Analysis and design of reflector antenna systems
Dedicated software for reflector systems, enabling fast and accurate analysis and design of the most advanced reflector antenna systems. Multiple antennas may be defined within the same project, and the general command structure enables the user to define which of those will be considered during a given analysis. This opens for the possibility of making advanced scattering analysis of clusters of antennas. GRASP offers an advanced PO algorithm as the baseline analysis method, supplemented by optional GTD and Moment Method solvers for advanced applications.
Easy definition of single and dual reflector geometries by built-in wizard
The intuitive wizard in GRASP allows for easy setup of single reflectors, Gregorian and Cassegrain systems as well as axially displaced dual reflectors. The wizard generates a good starting point for continued and more elaborate investigation of antenna designs. Further modifications may include changing the surface profile, the rim or edges, the surface material as well as adding other objects to simulate the antenna environment, investigating near fields and more.
Near-field and far-field analysis
The algorithms available for radiation pattern analysis applies equally well to field points in the far-field of the antenna as to points very close. In addition to presentation of standard far-field pattern cuts and contours, it is therefore also possible to inspect the near-field, for example to judge the planarity of an antenna’s aperture field, or to visualize the field from one antenna on surrounding objects, antenna towers, etc.
General source models
In addition to the built-in mathematical models to simulate feed radiation patterns, it is possible to utilize more realistic patterns stemming from measurements or predictions from specialized feed design programs such as CHAMP. Moreover, since any feed data imported from file will automatically be expanded in spherical wave modes, the subsequent computation of e.g. induced PO currents will be based on the actual feed near-field performance rather than the far field. Particularly in dual offset VSATs, the subreflector is placed very close to the feed where the source field may differ substantially from the far field.
Scattering between multiple objects
GRASP can perform analysis using geometrical theory of diffraction (GTD/UTD) on large and complex reflectors and constructions. At frequencies where the structure may be of thousands of wavelengths in diameter, the user can investigate the scattering between many objects. This applies equally well to large, ground-based telescopes and space-borne equipment.
Identify possible ray paths
A plot of the ray tracing will often reveal details about scattering mechanisms that are not obtainable through a PO analysis. GRASP uses a highly advanced ray-tracing approach to efficiently identify the possible ray paths in a given system.
Easy setup in frame designer
The frame designer enables the user to set up planar quasi-optical networks of components and subsequently optimize the components for minimum cross-polarization, maximum confocal distance, specific phase-front radius or phase slippage. Several frames can be created and connected to model beam waveguides which are not confined to a single plane.
Easy integration with other TICRA software products
GRASP is integrated in the TICRA Tools software framework. This means that you have can access all of TICRA’s other antenna analysis-tools, such as CHAMP 3D and POS, in the same interface as GRASP. You can seamlessly interact with objects from the other products and simultaneously optimise designs across all products.
Downloads
Technical documentation and resources for GRASP. Open files download directly; the rest are available to customers with a portal account.
Some FAQs
Is it possible to use more than one type of element in an array?
Yes, both the full-wave and analytical arrays support mixing any number of different array elements.
Is it possible to use more than one type of element in an array?
Yes, both the full-wave and analytical arrays support mixing any number of different array elements.
Is it possible to use more than one type of element in an array?
Yes, both the full-wave and analytical arrays support mixing any number of different array elements.
Is it possible to use more than one type of element in an array?
Yes, both the full-wave and analytical arrays support mixing any number of different array elements.
Is it possible to use more than one type of element in an array?
Yes, both the full-wave and analytical arrays support mixing any number of different array elements.
Is it possible to use more than one type of element in an array?
Yes, both the full-wave and analytical arrays support mixing any number of different array elements.
Is it possible to use more than one type of element in an array?
Yes, both the full-wave and analytical arrays support mixing any number of different array elements.
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.
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