I called in to ADI's tech support asking why I was getting less OIP3 than what is stated in the specification section in the datasheet and was pointed to figure 7 on page 8 showing OIP3 versus output power. I see there a significant spike in OIP3 at Pout=3dBm. Is there a specific reason why OIP3 is best at 3dBm? Was it designed to be this way?