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Software Releases

SWAN™ is a software continuously evolving. Below is a comprehensive list of the most recent releases.

Year 2025

 

SWAN™ v.25.0 (Build 1880) – Released on April 28th 2025

  • Slot Model, Design, Analysis
    • Slot model accuracy has been furher improved.
    • Minor bugs on GUI have been fixed.
  • Design
    • Shaped beam synthesis feature accuracy has been further improved.
    • New feature: Beam focusing in the near field is now possible.
    • New feature: Two new options have been added in “Smart Convergence”, to further improve convergence for a wider range of geometries and settings.
  • Analysis
    • New feature: 3D E-Field Amplitude plot can be now shown both in linear scale (KV/m) and in logarithmic scale (dB).
    • New feature: Near Field Monitors on the E- and H-planes are now available.

SWAN™ v.25.0 (Build 1879) – Released on March 7th 2025

  • Slot Model, Design, Analysis
    • SWAN integrated update feature is now even faster.
    • Minor bugs on GUI have been fixed.
  • Design, Analysis
    • Critical bug in the layout for SIW arrays have been fixed.
  • Analysis
    • New feature: 3D E-Field plots now also include E-field animation.

SWAN™ v.25.0 (Build 1878) – Released on January 11th 2025

  • Slot Model, Design, Analysis
    • New feature: Ridge Gap Waveguide technology is now supported.
    • Minor bugs on GUI have been fixed.
  • Slot Model
    • New feature: When loading a pre-saved slot model, all relevant results are automatically shown in the typical graphical outputs.
  • Design, Analysis
    • New feature: Antenna layout compatible with dip brazing technology can now be generated.
    • Bugs on DXF export has been fixed.
  • Design
    • Critical bug on internal engine has been fixed.
    • Antenna total weight calculation accuracy has been improved.

Year 2024

 

SWAN™ v.24.0 (Build 1877) – Released on June 8th 2024

  • Design
    • New feature: Periodic design is now applied to the panel size defined by the user.
    • Some critical bugs on complex excitation synthesis have been fixed.
  • Analysis
    • New feature: On E-plane and H-plane Gain plots, it’s now possible to show and hide an arbitrary Mask plot, selected among the available masks previously created by the user.

SWAN™ v.24.0 (Build 1876) – Released on May 16th 2024

  • Analysis
    • Save results feature has been improved.
  • Slot Model, Design, Analysis
    • Some critical bugs on GUI have been fixed.

SWAN™ v.24.0 (Build 1875) – Released on May 10th 2024

  • Analysis
    • New feature: When a mask is applied in the synthesis, the same mask is now also shown in the radiation pattern plots for comparison with the obtained results.

SWAN™ v.24.0 (Build 1874) – Released on April 17th 2024

  • Slot Model, Design, Analysis
    • New feature: When a new process is started, a pop-up window will open, informing the user that the environment initialization is in progress. This short message will automatically close a few moments later, when the process begins.
  • Slot Model, Design, Analysis
    • Minor bugs on GUI have been fixed.

SWAN™ v.24.0 (Build 1873) – Released on February 22nd 2024

  • Slot Model, Design, Analysis
    • Minor bugs on GUI have been fixed.
  • Design, Analysis
    • Internal engine radome model accuracy has been improved.
  • Design
    • Bug on the compensation of higher-mode effects on coupling slots due to the input transition have been fixed.

SWAN™ v.24.0 (Build 1872) – Released on January 5th 2024

  • Design, Analysis
    • New feature: Mutual coupling computation time is now reduced by more than 50%, yet maintaining the same accuracy.
    • New feature: Folded shorts design and analysis is now included.
    • New feature: DXF export now also include feeding waveguides back-cover layer, as well as folded shorts.
    • New feature: When Feeding WG sections with center-inclined slots are used, it is now possible to scale the coupling slot impedance for the two slots adjacent to the input transition to compensate for the effects of higher-order modes excited by the input transition.
  • Design
    • New feature: Improved antenna layout graphical output.
    • Critical bug occurring in some specific cases during the synthesis has been fixed.
    • Bugs on GUI has been fixed.
  • Analysis
    • New feature: A Project Info Text Box is now available, where the user can type and edit annotations and comments.
    • New feature: Surface deformation effects can now be evaluated.
    • New feature: The button “Close All” has been added, to immediately close all analysis result windows.
    • New feature: Simulated results are now automatically stored for each project. Available results can be then retrieved at any time by pressing the new button “Show Results”.
    • Bugs on GUI has been fixed.

Year 2023

 

SWAN™ v.23.0 (Build 1871) – Released on August 16th 2023

  • Slot Model, Design, Analysis
    • New feature: Figures can now be saved at even higher resolution (150 dpi, 300 dpi or 600 dpi).
  • Design
    • New feature: Full-screen toggle button has been added on Active Sections GUI (Arbitrary Geometry).
    • Bugs on Active Section GUI has been fixed.

SWAN™ v.23.0 (Build 1870) – Released on May 23rd 2023

  • Slot Model, Design, Analysis
    • New feature: License details such as support deadline and active options can now be visualized.
    • Minor bugs removed.
  • Design
    • New feature: BFN geometry can now be excluded when forcing array symmetry.
    • Critical bug affecting convergence has been removed.
  • Analysis
    • New feature: Far-field source can now be exported also in plain text Spherical or Ludwig III format (Real/Imag or dB/Phase).

SWAN™ v.23.0 (Build 1869) – Released on April 11th 2023

  • Slot Model, Design, Analysis
    • New feature: CMD Console has been removed.
  • Design
    • Critical bug in the Internal Engine has been removed.
    • Critical bug in the GUI has been removed.

SWAN™ v.23.0 (Build 1868) – Released on April 6th 2023

  • Slot Model, Design, Analysis
    • New feature: A new “Help…” button has been added on GUIs.
    • Accuracy has been further improved.
  • Analysis
    • New feature: The automatic calculation of antenna bandwidth can now be performed with respect to an arbitrary VSWR value.
  • Design
    • In some cases the slot model validity range may be exceeded. In such cases the software now provides a WARNING message with suggestions on how to solve the issue.

SWAN™ v.23.0 (Build 1867) – Released on March 10th 2023

  • Slot Model, Design, Analysis
    • The button “Check for Updates” now also provides information about your software license.

SWAN™ v.23.0 (Build 1866) – Released on February 25th 2023

  • Slot Model, Design, Analysis
    • Slot model computation speed has been further increased.
    • User Manual has been updated.
  • Slot Model
    • GUI minor bugs removed.

SWAN™ v.23.0 (Build 1865) – Released on February 18th 2023

  • Slot Model, Design, Analysis
    • New feature: SWAN™ will always be up to date, thanks to this new feature: automatic check for updates, automatic download and install of new versions (upon authorization by the user). 
    • Ridge waveguide slot modelling is now faster.
    • Slot model is now more accurate for all supported technologies.

SWAN™ v.23.0 (Build 1864) – Released on January 31st 2023

  • Slot Model, Design, Analysis
    • A number of GUI bugs have been removed.

SWAN™ v.23.0 (Build 1863) – Released on January 9th 2023

  • Slot Model
    • GUI minor bugs removed.
  • Design
    • New feature: On complex excitation pattern synthesis, mask file load and excitation file load GUIs have been renewed and extended with a preview of the selected file.
    • New feature: Complex excitation pattern synthesis is now more flexible and interactive with the introduction of a button that allows to edit the mask file after each synthesis.
    • New feature: Taylor 2D (radial non-separable excitation) is now possible, with a significant improvement in SLR and Gain performance with respect to a separable illumination (E-plane – H-plane) when applied to circular or elliptical apertures.
    • Complex excitation pattern synthesis is now even faster, yet maintaining the same accuracy.
    • Bug on complex excitation E-plane pattern synthesis has been fixed.
  • Analysis
    • New feature: Cross-polarization 3D patterns are now also available.
    • New feature: Far-field Source can be exported to CST (.ffs file) and GRASP (.cut file).

Year 2022

 
SWAN™ v.22.0 (Build 1862) – Released on October 3rd 2022
  • Analysis
    • Bug on the analysis of synthesis files saved with old versions has been fixed.
    • GUI minor bugs removed.

SWAN™ v.22.0 (Build 1861) – Released on September 7th 2022

  • Analysis
    • Bug on beam steering analysis has been fixed.

SWAN™ v.22.0 (Build 1860) – Released on May 30th 2022

  • Slot Model, Design, Analysis
    • Critical bug on dielectric-filled waveguides, including SIW, has been removed.
    • GUI minor bugs removed.
  • Design
    • Bug on travelling wave feeding WG section has been removed.
  • Analysis
    • Bug on 2D/3D radiation pattern plots has been removed.

SWAN™ v.22.0 (Build 1859) – Released on May 3rd 2022

  • Slot Model, Design, Analysis
    • A number of GUI bugs have been fixed.
  • Design, Analysis
    • New feature: The array can now be subdivided in panels, with panel size and panel-to-panel spacing defined by the user.
  • Analysis
    • Radiation pattern for travelling waveguide arrays in the E-plane is now plotted in the tilted plane crossing the main beam on its maximum.
  • Slot Model
    • New feature: Slot model functions g(x), v(x), h1(y) and h2(y) can be now exported in .txt format.

SWAN™ v.22.0 (Build 1858) – Released on April 19th 2022

  • Design, Analysis
    • GUI appearance has been improved.
    • GUI minor bugs removed.

SWAN™ v.22.0 (Build 1857) – Released on February 24th 2022

  • Design
    • Slot model check with warning message for those models that needs to be extracted again to guarantee accurate broadband analysis results.
    • DXF export bug on measure unit now fixed.
  • Analysis
    • New feature: Frequency Analysis Summary Report Figure has been included among the analysis outputs.
    • Bug on analysis with internal e.m. engine for ridge waveguides has been fixed.
    • DXF export bug on measure unit now fixed.

SWAN™ v.22.0 (Build 1856) – Released on January 17th 2022

  • Slot Model, Design, Analysis
    • New feature: Ridge waveguide technology in now fully supported. 
    • New feature: Slot Parameters Window has been renewed, in order to incorporate a major upgrade, the inclusion of a new waveguide technology besides rectangular WG and SIW: single-ridge waveguide.
    • New feature: GUI Visual Options now provides two different presets, with lighter or darker colours to suit your preferences.
    • Improved quality of all graphical outputs.
    • A number of GUI bugs have been fixed.
  • Slot Model, Design
    • New feature: A new button immediately provides all relevant info on the selected waveguide (such as the cutoff frequency, guide wavelength, waveguide losses, etc.).
  • Analysis
    • New feature: Simulation of the array performance over a beam steering range is now possible.
  • Slot Model
    • New feature: Slot model validity range is now automatically extended to 60% fractional bandwidth, allowing broadband analysis of the antenna performance also when internal e.m. engine is disabled.

Year 2021

 

SWAN™ v.21.0 (Build 1855) – Released on October 18th 2021

  • Design, Analysis, Slot Model
    • A bug in slot modelling, mainly affecting accuracy for low-profile and SIW waveguides, has now been fixed.
    • Dielectric radome model accuracy further improved.
    • Minor bugs on GUI removed.

SWAN™ v.21.0 (Build 1854) – Released on October 6th 2021

  • Design
    • GUI minor bugs removed.
    • Minor bug removed on the synthesis for symmetrical structures.
    • Smart convergence features has been further improved.
    • Short circuit compensation feature has been further improved.
    • Improved accuracy of mutual coupling calculation for dielectric-covered slots.
    • Synthesis speed has been increased, especially for large structures, yet maintaining the same accuracy.
  • Analysis
    • Bug on “Run Design” button removed.
    • Improved accuracy of mutual coupling calculation for dielectric-covered slots.

SWAN™ v.21.0 (Build 1853) – Released on September 2nd 2021

  • Design
    • New feature: Log Autosave checkbox is now available.
    • New feature: Full-screen Array Layout Button has been added to Theoretical Performance Window, for an immediate visualization of the antenna layout prior to its synthesis.

SWAN™ v.21.0 (Build 1852) – Released on June 9th 2021

  • Analysis
    • New feature: Data Cursor has been introduced on 2D and 2.5D Gain plots.
    • Radiation Pattern and Gain computation is now much faster, still maintaining the same accuracy.
    • GUI minor bugs removed.

SWAN™ v.21.0 (Build 1851) – Released on May 20th 2021

  • Design, Analysis, Slot Model
    • “SWAN Fix” and “SWAN Reset” are now more effective.
    • Output text window: improved output appearance.
  • Analysis
    • Increased quality of main cuts radiation pattern plots.
    • Bug on Refresh Button has been removed.
  • Design
    • GUI minor bugs removed.

SWAN™ v.21.0 (Build 1850) – Released on April 27th 2021

  • Slot Model
    • Bug in the slot model extraction has been removed (affecting high-accuracy slot model on low-profile WGs).

SWAN™ v.21.0 (Build 1849) – Released on April 1st 2021

  • Design, Analysis, Slot Model
    • New feature: Figures are now saved in high-resolution.
    • Output text window improved output appearance.
  • Design
    • Bug on short circuit compensation has been removed.
    • Bug on convergence algorithm has been removed (CRITICAL).
  • Slot Model
    • GUI bugs removed.

SWAN™ v.21.0 (Build 1848) – Released on March 16th 2021

  • Design
    • Bug on smart convergence for shaped apertures has been removed.
  • Analysis
    • Minor bug on antenna efficiency evaluation for beam steering has been fixed.
  • Design, Analysis
    • Flare thickness parameter has been included.

SWAN™ v.21.0 (Build 1847) – Released on February 15th 2021

  • Design
    • Minor bug on automatic elliptical aperture shaping has been fixed.
  • Analysis
    • Max field strength now also include coupling slots when present.

Year 2020

 

SWAN™ v.20.0 (Build 1846) – Released on December 15th 2020

  • Design, Analysis, Slot Model
    • New feature: SWAN™ can now handle 4GB RAM instead of 2GB, thus almost doubling the maximum array size up to 40K slots and more.
    • Updated User Manual (Version 20.0).
  • Design, Analysis
    • Minor improvements on GUI
  • Design
    • New feature: A very useful “Reload” button had been added, to quickly refresh the slot model list when a slot model is updated or a new slot model is saved in Slot Model.
    • Bug on rotational symmetry option has been fixed.

SWAN™ v.20.0 (Build 1845) – Released on September 9th 2020

  • Design, Analysis, Slot Model
    • Updated User Manual (Version 20.0).
  • Design, Analysis
    • Minor improvements on GUI .
  • Analysis
    • 3D Radiation pattern phase plot has been improved.

SWAN™ v.20.0 (Build 1844) – Released on August 6th 2020

  • Design, Analysis
    • New feature: Rotational symmetry can now be forced also for large and complex structures with arbitrary geometry.
    • Minor bug on DXF export has been removed.

SWAN™ v.20.0 (Build 1843) – Released on July 31st 2020

  • Design, Analysis
    • New feature: Layout DXF export now include Z-axis coordinate, thus making the 3D model generation on any 3D CAD software even simpler.
    • New feature: Flared/baffled slotted waveguide array design and analysis is now possible.
    • New feature: Planar arrays can now be designed and analyzed also with periodic boundary conditions.
    • Edge diffraction effects on mutual coupling has been strongly improved.
  • Analysis
    • New feature: A very useful “Reload” button had been added, to quickly refresh the antenna data when a new synthesis is performed.
  • Slot Model
    • Updating slot models is made easier, as the slot model file name is now the default name in the save window.

SWAN™ v.20.0 (Build 1842) – Released on June 15th 2020

  • Design, Analysis
    • Minor bugs removed.

SWAN™ v.20.0 (Build 1841) – Released on June 1st 2020

  • Design, Analysis, Slot Model
    • Easier installation of new license has been implemented. 
  • Design, Analysis
    • Improved accuracy (inclusion of higher mode TE01 in the internal mutual coupling – previously only higher mode TE20 was included).

Year 2019

 

SWAN™ v.19.0 (Build 1840) – Released on December 15th 2019

  • Slot Model, Design, Analysis
    • Improved accuracy in SIW modelling.
    • Improved stability (swan_fix.exe and swan_reset.exe now present in “Troubleshooting” folder)
  • Slot Model
    • Improved accuracy for the slot model extraction based on external full-wave simulations.
    • Improved internal engine accuracy.
  • Design
    • Major accuracy improvements.

SWAN™ v.19.0 (Build 1839) – Released on November 9th 2019

  • Analysis
    • Major accuracy improvement.

SWAN™ v.19.0 (Build 1838) – Released on October 16th 2019

  • Design, Analysis
    • Improved SIW model accuracy.
    • Minor bugs removed.

SWAN™ v.19.0 (Build 1837) – Released on September 9th 2019

  • Slot Model, Design, Analysis
    • New feature: “Troubleshooting” folder has been included, with a number of useful tools.
  • Slot Model
    • Improved slot model accuracy when external full-wave simulations are used for the slot model extraction.
  • Analysis
    • Improved graphics for 3D monitors.

SWAN™ v.19.0 (Build 1836) – Released on April 18th 2019

  • Design
    • Theoretical array performance gives now more info.

Year 2018

 

SWAN™ v.18.0 (Build 1835) – Released on September 30th 2018

  • Design, Analysis
    • Software accuracy for lossy waveguides has been improved.

SWAN™ v.18.0 (Build 1834) – Released on September 20th 2018

  • Slot Model, Design, Analysis
    • Software stability has been further improved.

SWAN™ v.18.0 (Build 1833) – Released on August 18th 2018

  • Slot Model, Design, Analysis
    • Improved accuracy in the slot equivalent circuit and mutual coupling calculation. 

SWAN™ v.18.0 (Build 1832) – Released on July 23rd 2018

  • Slot Model, Design, Analysis
    • Substrate Integrated Waveguide (SIW) modeling have been improved and some minor bugs have been removed.

SWAN™ v.18.0 (Build 1831) – Released on January 22nd 2018

  • Slot Model, Design, Analysis
    • Minor bugs removed.

Year 2017

 

SWAN™ v.17.0 (Build 1830) – Released on November 20th 2017

  • Analysis
    • Array Layout DFX Export – multi-section arrays: bug removed.
    • New feature: Gain Accuracy. Now gain accuracy can be defined or gain computation can be disabled, in many cases allowing for strong simulation time reduction, especially for large arrays (thousands of slots).
  • Design
    • Array Layout DFX Export – multi-section arrays: bug removed.
    • Array theoretical performance estimation has been improved (“Theoretic” button).    
    • Complex Excitation synthesis: bug removed.

SWAN™ v.17.0 (Build 1829) – Released on September 20th 2017

  • Analysis
    • Array Layout DFX Export – multi-section arrays with holes on the aperture: bug removed.
  • Design
    • Slot Model: E.M. Internal Engine (I.E.) minor bug removed.
    • Array Layout DFX Export – multi-section arrays with holes on the aperture – bug removed.

SWAN™ v.17.0 (Build 1828) – Released on June 15th 2017

  • Analysis
    • Tilted beam plot: minor bug fixed.
  • Design
    • Short circuit compensation: accuracy improved.

SWAN™ v.17.0 (Build 1827) – Released on April 20th 2017

  • Design
    • E/H-plane symmetry plane: minor bug fixed.
  • Slot Model, Design, Analysis
    • License stability issues have been solved. No more software crashes.

SWAN™ v.17.0 (Build 1826) – Released on January 23rd 2017

  • Slot Model, Design, Analysis
    • Minor bugs removed.

Year 2016

 

SWAN™ v.16.0 (Build 1825) – Released on November 17th 2016

  • Design
    • Complex Excitation synthesis: bug removed.
    • Centre-inclined coupling slot synthesis has been improved.
  • Analysis
    • New feature: Mask filename used for complex excitation synthesis has been added on the GUI.
    • New feature: 2D radiation patterns can be now also plotted in normalized mode.
    • Minor bugs removed.

SWAN™ v.16.0 (Build 1824) – Released on August 19th 2016

  • Design
    • Complex Excitation synthesis: minor bug removed. 

SWAN™ v.16.0 (Build 1823) – Released on August 08th 2016

  • Design
    • New feature: E-plane complex excitation synthesis now also possible with feeding WG sections.
    • E-plane complex excitation synthesis strongly improved.
  • Analysis
    • New feature: 3D radiation pattern plot has been introduced.
    • New feature: Montecarlo analysis now includes information on E-field strength and maximum power handling (feature available only if Montecarlo Analysis is an active option).
    • Improved visualization of 3D field monitors.

SWAN™ v.16.0 (Build 1822) – Released on June 07th 2016

  • Slot Model
    • GUI Settings: when opening the module, parameters of the last extracted model will be restored.
  • Design
    • New feature: Load/Save Design Settings. It is now possible to load and save current design parameter settings.
    • Active Section GUI: bugs removed.
  • Analysis
    • VSWR plot: optimized y range.
    • Radiation Pattern Plots: zoom function now active.
    • Radiation Pattern Plots: Directivity and Gain curves can be enabled/disabled.

SWAN™ v.16.0 (Build 1821) – Released on May 11th 2016

  • Design, Analysis
    • New feature: Full-wave mutual coupling. Increases the accuracy of mutual coupling calculation when using a dielectric radome.
    • Radome modelling accuracy improved.

SWAN™ v.16.0 (Build 1820) – Released on April 18th 2016

  • Design
    • Export layout minor bugs fixed.
    • Slot model interpolation accuracy improved.
  • Analysis
    • Export layout minor bugs fixed.

SWAN™ v.16.0 (Build 1819) – Released on April 07th 2016

  • Slot Model
    • Dielectric radome model accuracy improved.
  • Design
    • New feature: Save/Load Design Settings.
    • New feature: “Smart Convergence” now includes: progressive excitation fitting, progressive mutual coupling weighting, progressive mutual coupling windowing, slot offset and length ranges optimization.
    • Dielectric radome model accuracy improved.
  • Analysis
    • Save as BMP, JPG, TIFF fixed.
    • Dielectric radome model accuracy improved.

SWAN™ v.16.0 (Build 1818) – Released on March 09th 2016

  • Design
    • Symmetric geometries synthesis: bug fixed.
    • “Smart Convergence” has been strongly improved (progressive mutual coupling).
    • Stability improved.

SWAN™ v.16.0 (Build 1817) – Released on February 24th 2016

  • Design
    • New feature: Antenna weight estimation (Kgs).
    • More accurate antenna efficiency computation.
    • Minor bugs removed.

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