Humungus
Full Member level 6
Could somebody explain why the PA for quasi-constant amplitude carriers does not need to be highly linear?
For instance, some systems using OQPSK (quasi-cosntant evelope) have a simple PA. So, why do we pass the I and Q signal through rised cosine filters if, after all, the PA will introduce spurs?
For instance, some systems using OQPSK (quasi-cosntant evelope) have a simple PA. So, why do we pass the I and Q signal through rised cosine filters if, after all, the PA will introduce spurs?