Anritsu 37347D – Vector Network Analyzer; 40 MHz to 20 GHz

The Anritsu 37347D is a two-port Vector Network Analyzer delivering S-parameter and vector measurements across 40 MHz to 20 GHz. Built on the Lightning platform, this premium VNA addresses demanding RF characterization in defense, satellite, radar, broadband communication, and optoelectronic applications. The instrument combines compact form factor with advanced measurement capabilities for component evaluation, impedance analysis, and network modeling.

– Technical Specifications

• Frequency Range: 40 MHz to 20 GHz
• Frequency Resolution: 1 Hz
• Configuration: Two-port VNA, Premium Model
• Physical Dimensions: 22 × 22 × 14 in
• Weight: 20 lbs

– Key Features

The 37347D integrates four-sampler architecture enabling accurate LRL/LRM calibrations and supports NxN calibration utility for mixer measurements. Multiple source control mode with frequency offset capability, internal bias tees, and extended power range via source step attenuator and test port attenuator provide flexible measurement control. Time domain analysis (Option 2) characterizes impedance discontinuities as a function of distance. Gain compression application enables amplifier characterization across swept frequency and power routines.

E/O and O/E measurement capability streamlines optical modulator and photoreceiver evaluation—simplifying calibration while characterizing transfer function, group delay, and return loss. Harmonic, intermodulation distortion (IMD), and frequency translation measurements are standard. High stability frequency reference and 1 Hz resolution support precision network characterization. Rear panel IF inputs facilitate upgrade to millimeter-wave measurement capability.

– Measurement Applications

• S-parameter characterization
• Time domain impedance profiling
• Amplifier gain compression analysis
• Optical component (E/O, O/E) measurements
• Harmonic and intermodulation distortion (IMD) analysis
• Frequency translation measurements
• Multiport device characterization
• Mixer measurements via flexible test interface

– Connectivity & Upgrade Path

Ethernet and GPIB-equivalent command support enable remote operation and integration. Parallel port provides TTL-level external I/O control for channels 1–4, limit settings, and port bias voltages. Serial port interfaces with AutoCal® module. Option 15 (Flexible Test Option) unlocks access to all four samplers for advanced mixer and external test set integration. The 37347D platform supports direct upgrade to millimeter-wave configuration or broadband extension to 110 GHz via addition of appropriate test sets and modules.