Enter the input and output power levels in dBm into the calculator to determine the Rf gain. The gain is calculated in decibels (dB).
Rf Gain Formula
The following formula is used to calculate the Rf gain:
G = P<sub>out</sub> - P<sub>in</sub>
Variables:
- G is the gain (dB)
- Pin is the input power (dBm)
- Pout is the output power (dBm)
To calculate the Rf gain, subtract the input power level from the output power level.
What is Rf Gain?
Rf gain is a measure of the increase in power of a radio frequency signal. It is defined as the ratio of the output power to the input power, usually expressed in decibels (dB). Rf gain is an important parameter in the design and analysis of RF circuits, such as amplifiers and receivers, where it indicates how much an RF signal has been amplified.
How to Calculate Rf Gain?
The following steps outline how to calculate the Rf Gain:
- First, determine the input power (Pin) in dBm.
- Next, determine the output power (Pout) in dBm.
- Use the formula G = Pout – Pin to calculate the gain (G) in dB.
- After inserting the variables and calculating the result, check your answer with the calculator above.
Example Problem:
Use the following variables as an example problem to test your knowledge.
Input Power (Pin) = -30 dBm
Output Power (Pout) = -10 dBm
