The high power RF circuit board is designed with 0 pins.Switch, SP4T RF Type from the Evaluation board.Try searching with HMC345 if you're looking for variants.
EV1HMC345ALP3 Features
0 pins Switch, SP4T Type
EV1HMC345ALP3 Applications
There are a lot of Analog Devices Inc. EV1HMC345ALP3 RF Boards applications.