Explore AN-SOF’s interactive User Guide > for comprehensive guidance on using the Antenna Simulation Software.

✅ New Plots tab where we can quickly see the input impedance, VSWR, gain, Front-to-Rear, and Front-to-Back ratios as a function of frequency, with various visualization controls (grids, points, markers, etc.).

✅ The different parts of tapered wires are identified with alternating colors to better distinguish the wires of which they are composed.

✅ Click on a column header in the Results tab to display a plot immediately.

✅ New 3D Rotation button on the toolbar to easily rotate the view by moving the mouse.

✅ Combo-boxes now have “memory”. Select the frequency or angles to display polar diagrams and the next time you do so the same values will be pre-loaded.

✅ Users who use the comma as the decimal symbol can now import NEC files that use the period as the decimal separator. Go to Tools > Preferences > Options and check the option “The comma is set as the decimal symbol”.

✅ New Preferences window in AN-Smith to change the display of graphics in the Smith chart (line width, fonts, background, points).

💡 TIP 1: Double-click on the AN-SOF or AN-3D Pattern workspace to center the view in the window.

💡 TIP 2: Check “Show Points” in the Preferences window of AN-Polar to see the points on the radiation pattern lobes.

💡 TIP 3: Check “Equal Scales in 2 Plots” in the Preferences window of AN-XY Chart to display the left and right axes with the same scale.

Enjoy it!

This version of AN-SOF has new functions and options:

• ARRL-style scale in polar plots. Radiation pattern slices in decibels can be displayed on the classic ARRL log scale. This facilitates the comparison between the results obtained from AN-SOF and data published in magazines and in the antenna literature.
• Front-to-Rear (worst-case) and Front-to-Back (180-degree) ratios are indicated on polar plots.
• Export radiation patterns in MSI Planet format. See how here >.
• Improved Preferences window in the AN-XY Chart app, where we can set scales, units, line thickness, points, marks, and grids on rectangular charts.
• Visualization of the wire segments in the workspace. Check the “Show Segments” option in the Preferences window to see the segments.

Tip: double click on table items to instantly display plots.

REQUEST AN-SOF 7.90 TRIAL VERSION >

Enjoy AN-SOF!

• Quickly view input impedance, VSWR, directivity, gain and efficiency in the new Results tab.
• Click the Export Results button on the toolbar to export this data to a spreadsheet.
• The wavelength is now displayed in the Frequency panel while entering the operating frequency.
• Automatically close all charts when exiting AN-SOF or keep them open to analyze the plots. Go to Tools > Preferences > Options and check “Close charts when exiting AN-SOF”.
• A great strength of AN-SOF is the documentation. Explore the new User Guide here >.
• Coming soon: our online Knowledge Base!

Explore the new AN-SOF User Guide >, where you will find detailed information about its many features, as well as step-by-step examples and tips to help you quickly move forward with your antenna modeling projects.

• More compatibility for those who use the NEC format: RP, LD, GM, GS, GH, GA, and EX5 commands can now be imported into AN-SOF. 
• The Note panel now displays an error report when importing NEC files.
• New Zin button on the toolbar for quick access to input impedances and VSWR.

Enjoy!

• See how the radiation pattern changes with frequency in AN-3D Pattern. The near field heatmap and current distribution can also be viewed dynamically by changing the operating frequency.

• You can chat directly with technical support by going to the Help menu in AN-SOF (only available for the licensed version).

Enjoy this new version!

AN-SOF 7.10 is now available for download!

• Access the input impedance and VSWR easily by going to the Main menu > Results. This avoids selecting the segment where the source is located to access the input impedance.

• NEC designs of antennas over real ground can now be imported directly into AN-SOF by means of the GN command. The complete real ground description can also be exported to a NEC file.

• The GN command can also be exported to a Scilab .sce file to develop scripts and run bulk simulations.

• Run bulk simulations and process multiple input files with just one click. We have chosen the NEC format for the input files as it is a standard adopted by many users. Forget about running the simulations one by one, run them all at once.

• Import a single input file as a bulk simulation and get all the output data in one step. All computed parameters are saved as CSV files (power budget, gain, input impedance, VSWR, far and near fields, etc.).

• Export AN-SOF designs to Scilab format (*.sce files) and easily develop scripts that generate multiple descriptions with variable geometric parameters.

And last but not least, in this link > you will find the model of a Yagi-Uda antenna with variable element spacing. Follow the instructions therein and run the scripts to get the gain of a 3-element Yagi antenna as a function of the element spacing.

Enjoy!

We can highlight the following improvements:

• Tabular input of linear wires as well as sources and loads. AN-SOF has many tools to make drawing wires an easier task. However, for those who prefer to enter wires in spreadsheet format we have added a tabular entry.

• List of recently open projects in the File menu. Access the last projects you have been working on much faster going to main menu > File > List of recently open projects.

• Zoom in and out by rotating the mouse wheel (or using the touchpad in a laptop with two fingers). You can continue to zoom by first clicking on the magnifying glass icon and then moving the mouse, but using the mouse wheel is more direct.

• Radiation patterns plotted in AN-Polar can now be exported as *.ant files. The *.ant format can then be imported into the Radio Mobile propagation software. See the format description here: http://www.g3tvu.co.uk/Antenna_Plots.htm. Versions 1 and 3 are implemented in AN-SOF 6.20.

• See how to export radiation patterns from AN-SOF to Radio Mobile here: https://antennasimulator.com/downloadpro/Export_from_AN-SOF_to_Radio_Mobile.pdf. For 1 slice polar plot, an azimuth pattern must be chosen (theta = const). For 2 slices polar plot, slice 1 must be azimuthal (theta = const) and slice 2 must be zenithal (phi = const). The Full 3D option must be selected in AN-SOF Configure tab > Far-Field panel.

• Exportation of linear wires in DXF format has been added. DXF files can then be read by Autodesk viewer at https://www.autodesk.com/viewers/all-viewers/compare