The high power RF circuit board is designed with 0 pins.Mixer RF Type from the Evaluation board.Try searching with HMC558 if you're looking for variants.
EV1HMC558ALC3B Features
0 pins Mixer Type
EV1HMC558ALC3B Applications
There are a lot of Analog Devices Inc. EV1HMC558ALC3B RF Boards applications.