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.
110387-HMC453ST89 Features
0 pins Amplifier Type
110387-HMC453ST89 Applications
There are a lot of Analog Devices Inc. 110387-HMC453ST89 RF Boards applications.