VSim for Microwave Devices

VSimMDThe perfect tool for RF and Microwave Engineers, increasing productivity and reducing time to design.

 

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VSim for Microwave Devices Includes the Full Suite of Electromagnetic and Particle Modeling Features for Accurately Simulating RF and Microwave Devices

VSim for Microwave Devices (VSimMD) is a flexible, multiplatform, high-performance, parallel software tool for computationally intensive simulations of microwave devices with accurate simulation of dielectric and metallic shapes using a conformal mesh. Shapes can be easily imported from CAD files or constructed in the user-friendly front end, VSimComposer, and are rapidly meshed with the proprietary VMesh algorithm. The advanced graphics capability of VSim for Microwave Devices displays detailed profile and particle distribution data.

Simulate electron beams with primary and secondary electron emission. Primary emission mechanisms include Child-Langmuir space-charged limited emission, Fowler-Nordheim tunnelling emission, Richardson-Dushman, and user specified. For secondary electron emission, use the pre-installed SEY models, Furman-Pivi, or implement your own. Simulate multipacting at multiple power levels in just one run with field-scaled electrons.VSimMD can be used in the design cycle of specific components such as electron guns, collectors, and couplers. Perform microwave simulation and model high power microwave devices, including kinetic electromagnetic simulation of magnetrons, TWTs, and klystrons. VSimMD enables you to optimize your simulation for multipacting, shunt impedance, and S-Matrix coefficients. Use VSimMD to determine multipacting and perform electromagnetic simulation software with kinetic beams. Multipacting at multiple power levels can be computed in one simulation with the variable coupling electrons.

Examples of simulations of devices and components are included with the product, giving you a jump start for creating your own simulations. Because VSimMD runs on Linux, Windows, and Mac OS X, and runs in parallel, you'll achieve maximum performance. The full suite of electromagnetic and particle modeling features and optimized performance are available at an affordable price. Reduce your time from simulation to manufacture of microwave devices with VSim for Microwave Devices.

Model Specific Devices or Individual Components

Use VSimMD to design and model:

  • Traveling Wave Tubes (TWTs)
  • Electron guns
  • Striplines
  • Collectors
  • Couplers
  • Magnetrons
  • Klystrons

Simulation examples of devices and components are included with the product, giving you a jump start for creating your own simulations.

Diagnostics from VSim for Microwave Devices provide performance information:

  • Multipacting
  • Operating Modes
  • S-parameters
  • Quality & Geometric Factors
  • Power
  • Voltage
  • Electron Current
  • Electron Tracking
  • Electron Phase-Space

The advanced graphics capability of VSim for Microwave Devices displays detailed profile and particle distribution data.

 

VSim for Microwave Devices is optimized for solving large problems on parallel computing hardware.  VSim for Microwave Devices example simulations are included to reduce your learning curve.  Because VSim for Microwave Devices runs on Linux, Windows, and Mac OS X, and runs in parallel, you'll achieve maximum performance.  The full suite of electromagnetic and particle modeling features and optimized performance are available at an affordable price.  Reduce your time from simulation to manufacture of microwave devices with VSim for Microwave Devices.

 

Features

  • Structures
  • CAD import
  • Waveguide Ports
  • Surface emitters
  • Detailed particle physics with more algorithms than other simulation tools
  • Superior customer support by world-class experts
  • Well-supported software that runs on all platforms and runs in parallel
  • Ability to work from device examples similar to the your own device
  • Availability of non-proprietary output formats that you control, enabling you to access your data with public domain software, Matlab, or your own favorite tool
  • Interoperability with other VSim packages
  • Variable Weight and Fixed Weight Particles
  • General framework for both standard emission types and user-customized emission types
  • Secondary Emitter Particle Source for collector analysis
  • Particle Sinks
  • Unidirectional, and other current-based Ampere-Law sources
  • Analytic and importable Static Magnetic Field capability
  • Field and Particle Histories and Feedback
  • Noise filter
  • Lossy Dielectrics
  • Resistive Wall-loss calculation
  • Accurate modeling of beam-generated electromagnetic radiation
  • Includes surface effects such as multipacting or field emission
  • Includes interaction with background gasses

Advantages

  • Powerful post-processing capabilities
  • Economical:  Use VSimMD as a standalone simulation tool or add advanced physics features as needed by including other VSim packages
  • Easy learning curve: Build your own simulations using built-in examples as a starting point
  • Scales to solve your largest problems; accurate parallel decomposition for fast solutions
  • Works on Linux, Windows, and macOS platforms running on laptops, desktops, clusters, and supercomputers

 

Example Simulations Included

These example problems that demonstrate S-matrix trajectories, thermionic and photo field emission, multipactor saturation are included with VSim for Microwave Devices to jumpstart finding the solution to your problem:

Examples Using Visual Setup

Visual Setup Examples are ready to run and easy to use.  Running a Visual Setup Example and then customizing the settings for your own simulation is the fastest way to learn VSim.

Cavities and Waveguides
Multipacting
Radiation Generation
Other

Examples Using Text Setup

Code your simulation, then run it.  Text Setup Examples demonstrate how to format a simulation input file using code syntax. If you like the level of control available through designing your simulation using VSim code blocks and Python, try using a Text Setup file as the basis for your simulation project.

Cavities and Waveguides
Multipacting
Radiation Generation
Other
 

Questions? Contact us

VSim helix twt model
Helix TWT

Helix TWTs, which are used for communications, employ a helical slow wave structure which slows the field down to match the beam velocity as this Vorpal example illustrates.

VSim magnetron simulation showing Bz component

Rising Sun Magnetron

Rising sun magnetron shows a strong pi mode operation in this VSimMD example.

VSim multipacting model

Multipacting

Estimate multipacting threat with enhanced features that look across the entire range of field strengths at once.

 
VSim model of the center of a two cavity klystron
Two Cavity Klystron

This example shows a simple two cavity klystron amplifier.

 

VSim magnetron geometry

Magnetron Geometry



VSim model of superconducting (crab) cavities for accelerators

Superconducting Cavities Used for Accelerators

Visualization of Fermilab's A15 crab cavity shows the electric field lines in green, and the magnetic field lines in red.  The magnetic field strength at the wall is shown by color map with the the largest field strengths in orange and the smallest in blue.  The pipes extending from the end wall are for measuring.

 
VSim magnetron particles simulation
Magnetron 2D Particles


 

 

VSim S matrix model

S-Matrix

S-matrix dual mode cavity.

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