For example: Agilent E4440A or Anritsu 68369
Calibrators
Fluke 5820A-5C-2.1GHz
Fluke 5820A Oscilloscope Calibrator 5 Channel 2.1 GHz Bandwidth
Manufacturer: Fluke
Maury 8050Q
3.5mm DC to 26.5 GHz. calibration kit, option 03 8050Q03 Female and male
Manufacturer: Maury
Keysight / Agilent 85032A
Agilent HP 85032A 85032-20001 N-Type Female Open with Center Conductor 50 Ohm
Manufacturer: Keysight / Agilent
Keysight / Agilent 85056D
HP Agilent 85056D Economy Mechanical Calibration Kit, DC to 50 GHz, 2.4 mm
Manufacturer: Keysight / Agilent
Keysight / Agilent 85099A
85099A RF ECal module 85099A RF ECal module,type-F,m-f, 0.03 to 3 GHz
Manufacturer: Keysight / Agilent
Keysight / Agilent 85130E
Agilent 85130E Test Port Adapter Set, 2.4 mm to 7 mm
Manufacturer: Keysight / Agilent