The Anritsu 37377A is a Vector Network Analyzer delivering precision S-parameter measurements from 40 MHz to 50 GHz. Part of the Lightning™ series, this instrument combines advanced microwave and millimeter-wave testing capabilities with extended dynamic range and output power for characterization of active and passive devices. Purpose-built for defense, satellite, radar, and broadband communications applications, the 37377A integrates step attenuators, bias tees, and gain compression measurement capability—all supported by true four-port calibration and flexible two-port configurations via NxN Calibration Utility.
Technical Specifications
• Frequency Range: 40 MHz to 50 GHz
• Instrument Type: Vector, S-Parameter
• Product Line: Lightning™ Series
• Port 1 Step Attenuator: 1-watt, 70 dB (60 dB on >40 GHz models)
• Port 2 Step Attenuator: 40 dB
• Measurement Update Rate: Less than 2 ms per point with full phase-lock and vector-error correction
• Frequency Resolution: 1 Hz (with Option 10A)
– Key Features
• S-parameter characterization: S11, S21, S22, S12 measurements
• Insertion loss and return loss calculation
• Gain compression application for active device testing
• Frequency translation measurements for mixers, upconverters, and downconverters using Multiple Source Control and Frequency Offset modes
• Embedding/de-embedding application for fixture characteristic removal
• High RF immunity at +17 dBm for accurate measurements in high-signal environments
• Advanced true four-port calibration or multiple two-port configurations
• Improved dynamic range across passive and active device classes
• Extended power output range
• IEEE 488.2 GPIB bus for remote control and high-speed data transfer
• Standard Ethernet interface
– Typical Applications
• Defense and military RF/microwave systems
• Satellite communication component qualification
• Radar subsystem characterization
• Broadband communication device validation
• Active and passive component R&D and manufacturing test
– Compatibility & Integration
Remote control via GPIB and Ethernet enables integration into automated test environments and production workflows. NxN Calibration Utility supports complex multi-port and frequency-translation device measurements.


















