The Anritsu MS4623B is a vector network analyzer operating from 10 MHz to 6 GHz, purpose-built for RF device characterization and system testing. It delivers accurate S-parameter measurements across passive, active, mixer, and power amplifier devices through a single flexible source and ultra-linear receiver architecture. The instrument provides dynamic range up to 125 dB (10 MHz to 3 GHz) and supports mixed-mode S-parameters, embedding/de-embedding, and arbitrary impedance measurements. A wide range of optional capabilities—including noise figure analysis, harmonic and intermodulation distortion measurements, and time-domain analysis—enables advanced characterization workflows. The MS4623B can be expanded with optional modules for 3-port and 4-port measurements; Option 3B adds a second internal 6 GHz source for dual-source testing.
Technical Specifications
• Frequency Range: 10 MHz to 6 GHz
• Source Power Range: +7 dBm to −85 dBm
• Source Power Level Accuracy: ±1 dB to 6 GHz
• System Dynamic Range (terminated): 125 dB (10 MHz to 3 GHz); 110 dB (3 GHz to 6 GHz)
• Receiver Noise Floor: −105 dBm average (10 Hz, 3 GHz to 6 GHz)
• Receiver 0.1 dB Compression Point: +7 dBm
• Maximum Input Power: +27 dBm
• Damage Level: +30 dBm
• Harmonics: Better than −30 dBc
• Frequency Stability (Aging): <5 ppm/year
• Frequency Stability (Temperature): <5 ppm over +15°C to +50°C
• Measurement Speed: 150 µsec/point
• Connector Type: N female
– Key Features
• Full 2-port S-parameter measurements with optional 3-port and 4-port upgrade capability
• Mixed-mode S-parameters and arbitrary impedance support
• Embedding and de-embedding for test fixture correction
• Power sweep and gain compression analysis
• 12 independent markers with pass/fail limit line testing
• Optional second internal 6 GHz source (Option 3B)
• Internal AutoCal calibration option
• Dual GPIB interfaces with internal and external storage
– Optional Measurement Capabilities
• Noise figure analysis (50 MHz to 3 GHz or 6 GHz)
• Harmonic measurements
• Intermodulation distortion (IMD)
• Time-domain analysis
• Frequency translating group delay (B and D models)
– Typical Applications
• RF amplifier and filter characterization
• Mixer and frequency converter testing
• Passive component S-parameter verification
• Transmission line and interconnect analysis
• Active device gain compression measurement
