Have you Considered the Effects of Mismatch Impedances on the Output of your PA?
In order to deliver the maximum amount of power from a power amplifier to an antenna, the impedances must be matched. The parameter used to measure how well the impedances are matched is the Voltage Standing Wave Ratio (VSWR). VSWR is a reflection coefficient known as ‘return loss’. It is a measure of how much energy is reflected back into the system. If the VSWR is too high, there could potentially be too much energy reflected back into a power amplifier, causing damage to the internal circuitry. In an ideal system, there would be a VSWR of 1:1. Causes of a high VSWR rating could be use of an improper load or something unknown such as a damaged transmission line. But how exactly does this effect the signal or cause damage to the PA?
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