3D Smith Chart
  • slidebg 3D Smith Chart

    3D Smith Chart

    A new vision in microwave analysis and design.

Active & Passive Circuits

Works for all active & passive microwave circuits, even with negative resistance!
South hemisphere for negative resistance, North hemisphere for positive resistance, East inductive, West capacitive

Amplifier Stability circles

Unconditionally stable: south hemisphere.
Infinity becomes compact.
Circles which are never closed on the Smith chart get together in the South hemisphere.

3D Unilateral transducer gain & group delays & quality factors.

3D Space surrounding the chart is used to plot power gains too. Can be displayed over the constant gain circles which are on the surface.

2D & 3D mode, Z-Y Smith charts

Match circuits on 5 constant resistance, reactance, conductance, susceptance and constant reflection coefficient’s magnitude circles.
Choose from the 5 paths (r,x,g,b,lat) and add normalized r,x,g,b, /stubs equivalents or lossless transmission lines

S parameters

Any s1p and s2p files can be imported (touchstone format).
Parameters are plot on both 2D& 3D Smith charts in Z/Y reconfigurable format.
* New 3D frequency sweeping - orientation visualization
* New inductance and quality factors visualization in 3D

Dynamic frequency sweep & complex ports

The tool proposes a dynamic frequency sweep to tune live the device under study.
The ports have complex characteristic impedances too. The tool can deal with voltage reflection coefficient / power wave.

The 3D Smith Chart Tool

The 3D Smith Chart tool is free starting 16.04.2020 for any undergraduate, master or PhD university student for academic projects!. For the free trial version please contact us via contact form or on 3dsmithchart@gmail.com !

The 3D Smith chart tool is a (completely reconfigurable), very easy to install software operating in Windows and programmed in Java for high frequency engineering.

The 3D Smith chart tool includes starting 2019 negative capacitance & frequency display, added to the previous negative resistance features.

The tool contains two modes: analysis mode (S parameters touchstone files based) and design mode - both including a 2D and 3D Smith charts in Z/Y (impedance/ admittance versions)

See the documentation for a very detailed overview of the tool
For features added in update 1.02 see this documentation

See these slides for a quick overview, also available in Spanish, Italian and Chinese

For an overview of the new features in version 1.02 please see this video and the press release

Read more about the 3d Smith Chart new negative capacitance & frequency displays capabilities this article in Nature Scientific Reports - December 2019.

Read more about the 3D Smith chart in the November 2020 article published in IEEE Microwave Magazine-.

Read more about the 3D Smith chart following versions in the September 2020 article published in IEEE Access-.

What the tool is about

It uses a new vision in microwave analysis and design.

Full 3D visualization

Intuitive user interface

Easy Install

State of the art concepts


Meet the Team.

Andrei A. Muller (PhD)

Telecommunications engineer

Alin Moldoveanu (PhD)

Computer Science engineer

Victor Asavei (PhD)

Computer Science engineer

Cristian Fleischer

Software Engineer

What users of the application say.

Let's talk.

We would love to hear from you so let's get in touch!


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