I am new to RF Designing and I'm using HMC511LP5E (10 GHz RF Synthesizer chip) from Analogue Device. I put the trace shortest and straight to the output connector. the trace impedence is also kept 50ohms. But still I am facing issues regarding it's output power. I have tried that chip on multiple PCBs. On FR4 it is providing approx -10dBm Output power at 9.5GHz and approx 1.5 dBm Output Power on Rogers. while the Datasheet claims 14 dBm Output Power at this frequency range. Can you please help me with your valuable sugestions?