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Ansoft Designer / Ansys Designer 在线帮助文档：

HFSS and Planar EM Simulators >
Using the Estimate Module >
   Using the Microwave Calculator >
       Converting Between dB and Ratio           


Converting Between dB and Ratio

Use this command to convert dB and ratio for both power and voltage values.

 

To convert between dB and its ratio:

1. Select the parameter to convert from — either dB or Ratio. A value input box appears to the right, corresponding to the selected parameter.

2. Enter a value for the parameter selected.

3. Click Calculate.

4. The calculated dB or ratio value appears below in the Estimate Results area of the Estimate module.

5. Select the type of unit measurement, Power or Voltage, for the calculated value.:

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Power

Uses the power value, such as gain, for calculating dB:

Voltage

Uses the voltage value, such as fields, for calculating dB:

The calculated results for the selected unit are shown above in the Estimate Results area of the Estimate module.

 



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