Anritsu Anritsu MS4642B Vector Network Analyzer, 10 MHz to 20 GHz

The Anritsu MS4642B is a 2-port vector network analyzer operating from 10 MHz to 20 GHz, expandable to 4 ports with optional measuring units. It delivers up to 142 dB dynamic range and +14 dBm available source power for precision RF and microwave device characterization. Built on the VectorStar platform, the MS4642B combines S-parameter measurement, advanced pulse analysis, and differential device testing in a single instrument.

Technical Specifications

• Frequency Range: 10 MHz to 20 GHz (optional extension to 70 kHz)


• Ports: 2 standard; expandable to 4 ports with MN4694C or MN4697C measuring units


• Dynamic Range: Up to 142 dB system; 135 dBm maximum; receiver dynamic range defined as difference between 0.1 dB compression point and noise floor


• Source Power: Up to +14 dBm available; +10 dBm maximum output; +12 dBm source power


• Receiver Linearity: +15 dBm compression point at 70 GHz


• Directivity/Matching: Up to 50 dB (directivity, source match, load match)


• Dimensions: 487 × 286 × 591 mm


• Weight: 30 kg


• Warm-up Time: 90 minutes


• Interfaces: USB, Ethernet, IEEE-488.2 (GPIB)

Key Features

• S-Parameter Measurements: S11, S21, S22, S12, and wave amplitude combinations (a1, a2, b1, b2)


• PulseView™: 2.5 ns pulse resolution with 100 dB dynamic range for pulse characterization


• DifferentialView™: Single-ended or balanced 4-port measurements for differential devices


• IMDView™: Real-time intermodulation distortion with optional internal combiner for single-connection testing


• Spectrum Analyzer Option (Option 49/049): 70 kHz to 220 GHz coverage; dual SPA mode for mixers, amplifiers, harmonics, and spurious measurements; configurable up to 1.1 THz


• Noise Figure (Option MS4640B-041): Cold source technique; 70 kHz to 125 GHz capability; optimized receiver for 30–125 GHz; differential noise figure option available


• Universal Fixture Extraction (UFX): Advanced de-embedding software


• Time Domain Analysis: Option MS4640B-002

Typical Applications Radar component characterization, antenna measurements, materials testing, on-wafer device analysis, differential circuit validation, harmonic and spurious product identification.

Compatibility & Integration Expands via MN4694C and MN4697C measuring units. Communicates over USB, Ethernet, and IEEE-488.2 interfaces. Optional spectrum analyzer modules extend frequency coverage to 220 GHz and banded configurations to 1.1 THz.