0 pins are provided on the high power RF circuit board.The Evaluation board has type Switch, SPST RF.Try searching for HMC550 variants of the RF Board.The mount is provided by PCB.
109266-HMC550 Features
0 pins Switch, SPST Type
109266-HMC550 Applications
There are a lot of Analog Devices Inc. 109266-HMC550 RF Boards applications.