Pattern Data Integration and Visualization
R2026bImport measured or simulated radiation pattern data from TXT, CSV, FFD,
FFS, or MSI Planet files (.msi or
.pln). Use this data to excite cavity and
reflector-backed structures, perform array pattern multiplication, integrate
patterns into RF systems, conduct RF link budget analysis, and apply them in
satellite transmitter and receiver models.
Visualize 3-D radiation patterns, near- and far-fields, and generate interactive polar plots. Reconstruct 3-D radiation patterns from 2-D slice data. Write MSI planet antenna files in ASCII text format.
Objects
measuredAntenna | Store field data for analysis, excitation, pattern multiplication, and integration with RF systems (Since R2023a) |
polarpattern | Interactive plot of radiation patterns in polar format |
PatternPlotOptions | Pattern overlay options to customize 3-D radiation pattern |
Functions
computeSpatialPoints | Compute Cartesian coordinates of points from spherical coordinates (Since R2026b) |
ffsReader | Import far-field data from Far-Field Source files (Since R2026a) |
fieldsCustom | Plot electric or magnetic field of antenna |
msiread | Read antenna or array analysis data from MSI planet file |
msiwrite | Write antenna or array analysis data to MSI planet file |
patternCustom | Plot radiation pattern using spherical coordinate system (phi and theta angles) |
patternFromAI | Reconstruct 3-D radiation pattern of antenna or array using AI (Since R2024a) |
patternFromSlices | Reconstruct approximate 3-D radiation pattern from two orthogonal slices |
smithplot | Plot measurement data on Smith chart |
Topics
- Interact with Polar Plot
Use the interactivity features of a polar plot.
Featured Examples
Read, Visualize and Write MSI Planet Antenna Files
Read an MSI Planet antenna file (.msi or .pln). You can read an MSI file using the msiread function and visualize the data using the polarpattern function. You can also write the data back into the MSI Planet format using the msiwrite function.
Import Measured Field Data and Visualize Radiation Pattern
Visualize a radiation pattern and vector fields from the imported pattern data. Use the patternCustom function to plot the field data in 3D. This function also allows you to view the sliced data. Alternatively, use the polarpattern object to visualize the field data in 2D polar format. The polarpattern function allows you to interact with the data and perform antenna specific measurements. You can also plot the vector fields at a point in space using the fieldsCustom function.
Reconstruction of 3-D Radiation Pattern from 2-D Orthogonal Slices
Reconstruct a 3-D radiation pattern using patternFromSlices function. A 3-D radiation pattern is a very important tool for antenna analysis, characterization, design, planning, and applications. This example shows reconstruction of 3-D radiation pattern from two orthogonal slices for an omni-directional dipole, a directional helix, and imported pattern data of an antenna.
Reconstruct 3-D Antenna Pattern from 2-D Slices Using Deep Learning
Use deep learning to reconstruct a 3-D antenna radiation pattern from two orthogonal 2-D slices.
Multi-Hop Satellite Communications Link Between Two Ground Stations
Set up multi-hop link between two ground stations.
Coverage Maps for Satellite Constellation
Display coverage maps for a region of interest using a
satelliteScenario and 2-D maps.
