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Varactor diode in HFSS

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rahul16389

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I want to make a electronically scanned leaky wave antenna. For this i have been planning to use a varactor diode. But how i ll get the simulate results in HFSS i.e how to place a varactor diode on HFSS:cry:
 

I believe in this case, the easiest method is to simulate your antenna in HFSS, export the S-parameters to a circuit simulator, and simulate the circuit with a varactor in a circuit simulator like ADS. Once the S-params are exported, you can treat your antenna like a black box lumped element.
 
rahul16389 said:
I want to make a electronically scanned leaky wave antenna. For this i have been planning to use a varactor diode. But how i ll get the simulate results in HFSS i.e how to place a varactor diode on HFSS:cry:
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Hi rahul16389,

I don't think it's possible to implement the varactor, but you can insert a lumped capacitive surface (as a "LumpedRLC" boundary condition) and assign it a variable C which itself is a function of some specified variable V. You can then sweep V and observe the system response.
 
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