Anritsu 37225A Network Analyzer, 22 MHz – 13.3 GHz

The Anritsu 37225A is a vector network analyzer delivering S-parameter and vector network analysis across 22 MHz to 13.3 GHz. Built as a single-instrument system, it combines an integrated fast-sweeping synthesized source, auto-reversing S-parameter test set, and 4-channel receiver to characterize RF and microwave components during design, manufacturing, and quality assurance workflows. The instrument supports multiple measurement formats - log magnitude, phase, Smith chart (impedance and admittance), log polar, group delay, and linear magnitude - with up to 1601 data points and six independent markers.

A 7.5" color display with user-definable trace text and graticule colors provides immediate visualization of results.

Technical Specifications

• Frequency coverage: 22 MHz to 13.3 GHz


• Maximum data points: 1601


• Independent markers: 6


• Display: 7.5" color


• Storage: hard drive and internal 3.5" MS-DOS floppy drive


• Sweep mode: step sweep supported

Key Features

• Integrated fast-sweeping synthesized source


• Auto-reversing S-parameter test set


• 4-channel receiver architecture


• Multiple measurement formats: log magnitude, phase log magnitude, phase, Smith chart (impedance & admittance), log polar, group delay, linear magnitude


• Limit line capability


• Microprocessor controlled


• Full GPIB (IEEE 488.2) control


• LabVIEW compatible

Typical Applications

• RF and microwave component characterization


• S-parameter measurement and analysis


• Design validation and verification


• Manufacturing quality assurance


• Device impedance and admittance analysis

Compatibility & Integration The 37225A operates under GPIB control via IEEE 488.2 interface and integrates with LabVIEW environments. The instrument functions as a standalone system requiring no external test set or signal source.