Anritsu 37369A Vector Network Analyzer (40 MHz to 40 GHz)

The Anritsu 37369A is a microprocessor-controlled vector network analyzer spanning 40 MHz to 40 GHz in a single, compact bench-top instrument. It integrates a synthesized signal source, S-parameter test set, and four-channel receiver into one system for high-frequency characterization of RF and microwave components, networks, and systems. The instrument delivers fast measurement throughput with sub-3 ms update rates per point and supports extensive analysis modes including S-parameters, amplitude and phase tracking, group delay, time domain analysis, and filter nonlinear response identification.

Technical Specifications

• Frequency Range: 40 MHz to 40 GHz


• Output Power: -97 dBm (minimum) to -7 dBm (rated)


• Power Control: 70 dB step attenuator in Port 1 path (60 dB on >40 GHz models), 40 dB step attenuator in Port 2 path, 20 dB ALC range


• Resolution: 0.05 dB


• Measurement Points: Up to 1601 data points maximum


• Display: 7.5-inch color display with user-definable trace, text, and graticule colors


• Time Base Stability (Standard): < 1 × 10⁻⁶/day aging; < 1 × 10⁻⁶ over 15–50 °C


• Time Base Stability (Option 10A): < 1 × 10⁻⁹/day aging; < 1 × 10⁻⁹ over 0–55 °C

Key Features

• Dual source control for mixer and multiplier testing with independent control of two sources and receiver


• Six independent markers with delta-reference capability and limit lines


• Multiple measurement formats: log magnitude, phase, Smith chart (impedance and admittance), log polar, group delay, linear magnitude, real/imaginary, SWR


• LRL/LRM and adapter removal calibrations with automatic reference plane extension


• Internal bias tees for DC biasing of active designs


• Front panel loop for external amplifier insertion to increase Port 1 power


• Fast sweeping synthesized source

Typical Applications

• S-parameter and network characterization


• Amplifier gain compression measurement


• Port match and port-to-port isolation analysis


• Conversion gain/loss measurement for mixers and multipliers


• Production-line validation of high-frequency circuits

Compatibility & Integration

• GPIB (IEEE 488.2) primary data interface