How to calculate the resistance of a PIN modulator in charge

- May 23, 2023 at 10:51 am
  
  krishnanunnira.20
  Subscriber
  
  Forward resistance of the device need to be calculated for different frequencies. Is it possible using the anode current.
- May 25, 2023 at 6:05 pm
  
  kghaffari
  Ansys Employee
  
  Hi,
  You can perform a small signal analysis (for a range of frequencies) and then derive internal resistance from the real part of impedance.
  This approach is used in the travelling wave modulator example (here is the link). This approach is used in Step 2/5 of the workflow; the post-processing can be found in the script "tw_modulator_DEVICE_ac_RC.lsf".
  Best regards