For example: Agilent E4440A or Anritsu 68369
Microwave Components
Keysight / Agilent 11691D
Coaxial Directional Coupler, 2 GHz to 18 GHz
Manufacturer: Keysight / Agilent
Anritsu 22K50
RF Precision Open/ Short Standard, K Connector (2.92mm) Male, DC - 40GHz
Manufacturer: Anritsu
Keysight / Agilent 33330D
High Performance Planar-Doped Barrier Detector, 0.01 to 33 GHz
Manufacturer: Keysight / Agilent