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Software Releases

SWAN™ is a software in continuous development. In this section the most recent releases are reported.

Year 2022

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
      • “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
      • Antenna weight estimation (Kgs).
      • More accurate antenna efficiency computation.
      • Minor bugs removed.

 

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