The high power RF circuit board is designed with 0 pins.Amplifier RF Type from the Evaluation board.Try searching with HMC453 if you're looking for variants.RF Board is included in the PCB mount.
109994-HMC453QS16G Features
0 pins Amplifier Type
109994-HMC453QS16G Applications
There are a lot of Analog Devices Inc. 109994-HMC453QS16G RF Boards applications.