For example: Agilent E4440A or Anritsu 68369
Anritsu Signal Generators
RF and microwave signal generators, PXI and PCI signal generators include versatile arbitrary waveform generators, function generators, and RF vector signal generators.
Anritsu 68077B
Anritsu Wiltron 68077B Synthesized Sweep Signal Generator, 10 MHz - 50 GHz
Manufacturer: Anritsu
Anritsu 68369B
Anritsu Wiltron 68369B Synthesized Sweep Signal Generator, 10 MHz - 40 GHz
Manufacturer: Anritsu
Anritsu 69367B
Anritsu 69367B Ultra Low Noise Synthesized High Performance Signal Generator, 10 MHz to 40 GHz.
Manufacturer: Anritsu
Anritsu 69367B-21B-6-10-15B-21B
Anritsu 69367B Ultra Low Noise Synthesized High Performance Signal Generator, 10 MHz to 40 GHz.
Manufacturer: Anritsu
Anritsu 69367B-2B-11-16-21B
Anritsu 69367B Ultra Low Noise Synthesized High Performance Signal Generator, 10 MHz to 40 GHz.
Manufacturer: Anritsu
Anritsu 69397B
Anritsu 69367B Ultra Low Noise Synthesized High Performance Signal Generator, 10 MHz to 40GHz.
Manufacturer: Anritsu
Anritsu MG3681A
Anritsu MG3681A Signal Generator, 3 GHz w/ TDMA, CDMA, AWGN, & GSM Capability
Manufacturer: Anritsu
Anritsu MG3692A-3-2A-15A
Anritsu MG3692A RF/Microwave Ultra Low Phase Noise Signal Generator 10 MHz-20 GHz
Manufacturer: Anritsu
Anritsu MG3696A-1A-2C-3
2GHz to 65GHz Ultra Low Phase Noise main band Microwave Signal Generator
Manufacturer: Anritsu
Anritsu MG3700A-002-011-021-101A-102A-103A
250kHz - 6GHz Vector Signal Generator
Manufacturer: Anritsu