Cobham plc
 
 
 

QUICKWAVE

 

The Quickwave analysis module uses the FDTD method to quickly and accuratley model microwave devices. The FDTD method is known for its accuracy and reliability, and can model very large models with ease.

 

The unique technology allows Quickwave to include curved and inclined surfaces without having to create small "staircase" meshing. The surface is modeled accuratley without any reduction in time step.

 

Applications of Quickwave include:

 

  1. Antennas: A range of antennas can be modeled using the special techniques available. With near-to-far field transformation, both 2D and 3D radiation plots can be produced. For complex structures the conforming mesh is essential. Patch antennas can be modeled by using infinitely thin metal layers. Special techniques take into account the field singularities near metal corners, improving the accuracy for these applications.
  2. Waveguides: Quickwave is well suited to this class of model and can be relied on to give accurate results. Waveguides can be part of larger systems.
  3. Cavities and Resonators: Quickwave can be used to quickly obtain the resonant frequencies of cavity structures (such as RF cavities and microwave ovens) including lossy walls and lossy loads. For each resonant mode, the Q-factors can be computed and the model shape interrogated.
  4. Filters: For this demanding application the techniques within Quickwave give accurate solutions. The fields near corners are modeled accurately (including the field singularity), thin sheet models can be utilized for planar filters and local grid refinement can be used where extra precision is required. With the unique QProny module, the analysis time is reduced significantly without loss of accuracy.
  5. Microwave Heating: A specialized module to model temperature rise in materials is included. Material properties are defined as functions of temperature, giving accurate predictions of temperature rise as a result of microwave heating. 

Key Benefits of Quickwave include:

 

  1. Large, complex models can be run with ease as it is not necessary to store large matrices
  2. Wideband analysis can be performed in a single run.
  3. The Geometric Modeler is used to import CAD files and to add or modify them as required.
  4. The Modeler is run independently of the analysis modules (the Modeler can be used to prepare the next model ready for analysis whilst the first analysis is still running).
  5. The Simulator is launched directly from the Modeler, and has its own Dynamic Multi-Window Visualization tool, allowing the user to interact with the Simulator as the analysis progresses, changing what is displayed and where.
  6. For larger analyses, the solution can be "frozen", freeing up the computer for other work, and then returing to the simulation and restarting from where it was "frozen".
  7. Command Files can be created for use in running both the Modeler and the Simulator.

 

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