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How to apply a step function electric field?

Posted 19 oct. 2017, 20:48 UTC−4 Low-Frequency Electromagnetics, RF & Microwave Engineering Version 5.2a 3 Replies

Mohammad Karimi
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Hi, I am trying to simulate a structure in RF or Electrostatic module under a step fucntion electric field as an incident field. I would apprecite if anyone can help me as I have alwayse used harmonic sinusoidal signals as input fields by now.

3 Replies Last Post 24 oct. 2017, 05:46 UTC−4
Vasily Kozhevnikov
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Posted: 7 years ago 20 oct. 2017, 09:33 UTC−4

Hi,

Just define a step function you like in Definition -> Function -> Step and add it to Electric field component boundary or elsewhere in RF/Electrostatics

Hi, Just define a step function you like in Definition -> Function -> Step and add it to Electric field component boundary or elsewhere in RF/Electrostatics
Mohammad Karimi
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Posted: 7 years ago 21 oct. 2017, 22:16 UTC−4

Thank you very much. I can define a step function. However, I still do not understand how should I relate this function to my initial or boundary conditions. I actually need to stimulate my system with a time-dependant electric field or boundary condition.

Thank you very much. I can define a step function. However, I still do not understand how should I relate this function to my initial or boundary conditions. I actually need to stimulate my system with a **time-dependant** electric field or boundary condition.
Lasse Murtomäki
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Posted: 7 years ago 24 oct. 2017, 05:46 UTC−4

If your step function has the name step1, call it step1(t), multiplied by whatever constant you have in the boundary condition. Or anywhere you need it. Is this what you asked?

If your step function has the name step1, call it step1(t), multiplied by whatever constant you have in the boundary condition. Or anywhere you need it. Is this what you asked?

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