At the lower and upper y-boundaries two waveguide ports are defined that monitor and extract the rf-power. The particle beam excitation is defined by a circular particle source. The waveguide connectors are built with the help of two vacuum bricks. The background material will be set to perfect electrical conductor (PEC).įurther information can be obtained from the "Workflow and Solver Overview" documentation.īeam tube and cylindrical cavity are generated by using two vacuum cylinders (surrounded by PEC background). For this structure, it is sufficient to model only the vacuum space. Anything you do not fill with a particular material will automatically be considered as the background material. Since only the output resonator as a part of the klystron is simulated, a Gaussian emission model is used to define an already bunched particle beam.ĬST Particle Studio allows you to define the properties of the background material. The output resonator is the last stage (cavity) of a klystron, the amplified signal can be extracted by waveguide ports. A klystron is a device to amplify microwave and/or radio frequency signals. This workflow example demonstrates how to build up the output cavity of a klystron for a PIC simulation. Extract from CST Particle Studio® - Workflow and Solver Overview:
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