On this high power RF circuit board, there are 0 pins.A RF type of Amplifier is provided by the Evaluation board.Using the HMC661 search parameter, you can discover variants of the RF Board.
EVAL01-HMC661LC4B Features
0 pins Amplifier Type
EVAL01-HMC661LC4B Applications
There are a lot of Analog Devices Inc. EVAL01-HMC661LC4B RF Boards applications.