Advantest R3753AH – 5 Hz to 500 MHz 3 Port Vector Network Analyzer

The Advantest R3753AH is a 3-port vector network analyzer delivering S-parameter measurements from 5 Hz to 500 MHz with dynamic range up to 115 dB. It characterizes multiport devices through simultaneous measurement of all nine S-parameters (S11, S22, S33, S21, S12, S31, S13, S23, S32) and provides impedance (Z) and admittance (Y) parameter conversion. The instrument displays data in rectangular, Smith chart, and polar coordinate formats across linear/logarithmic amplitude, phase, group delay, VSWR, and complex number representations.

Technical Specifications

• Frequency Range: 5 Hz to 500 MHz


• Dynamic Range: Up to 115 dB


• Resolution Bandwidth (RBW): 3 Hz to 10 kHz variable


• Sweep Time: As low as 0.1 ms/point (at 10 kHz RBW)


• Measurement Points: 3 to 1201 selectable points


• Data Averaging: 2 to 999 sweep vector averaging


• Display: 12.1-inch SVGA TFT color LCD

Key Features

• Multi-format display: rectangular (amplitude linear/log, phase, group delay, VSWR, complex), Smith chart (amplitude linear/log, phase, R + jX, G + jB), polar coordinates (amplitude, phase, complex)


• Flexible sweep modes: linear frequency, user-defined segment sweep, and level sweep with continuous, single, or external triggering


• Comprehensive calibration: normalize function for frequency response correction, 1-port calibration for reflection measurements, transmission calibration, and electric length compensation


• Marker capability: up to 16 simultaneous markers with A-marker and search functions


• Limit line setup: 32 segments maximum with integrated PASS/FAIL display


• Source control: adjustable output power with electronic attenuation formula output


• GPIB integration: basic controller function enables self-control and operation of external GPIB devices


• Arithmetic processing: built-in functions for high-speed data analysis

Typical Applications

• Impedance matching network design and verification


• Filter characterization and development


• Cable and transmission line testing


• Multiport device characterization


• Reflection and transmission measurements requiring calibrated accuracy

Compatibility & Integration GPIB-controllable architecture supports instrument integration within automated test systems. Programming support enables remote operation and data acquisition for production and laboratory environments.