I am having trouble with the HMC392LC4. I am unsure as to why I am getting a 20 dB Loss at the output of the cascade of these amplifiers instead of a 30 dB gain. The only difference between the eval circuit and the circuit I used for my PC board is the blocking caps I placed at the inputs and output s of the amplifiers. Could this cause the issue, seeing that the amplifiers have internal DC blocks? Any help will be appreciated.
Thank you all.