HP / Agilent 8722D 40 GHz S-parameter Vector Network Analyzer

The HP/Agilent 8722D is a 40 GHz vector network analyzer delivering precise S-parameter measurements from 50 MHz to 40 GHz. The instrument combines a fully synthesized, fast-sweeping source, tuned receivers with variable bandwidth IF filters, and a built-in solid-state switching test set in a single compact unit. Measurement updates occur as rapidly as 1 ms per point with 1 Hz frequency resolution, enabling accurate characterization of narrowband and long-delay devices.

Technical Specifications Frequency Range: 50 MHz to 40 GHz Source:

Fully synthesized, fast-sweeping architecture

Frequency stability: ±10 ppm (typical)

Maximum source power: −5 dBm (< 20 GHz), −5 dBm (20–40 GHz); +5 dB increase with Option 007

Power resolution: 0.01 dB

Power sweep range: 20 dB (standard), 15 dB (20–40 GHz)

Power flatness: ±1.5 dB (standard), ±2 dB (20–40 GHz) Receiver:

Dynamic range: Up to 105 dB

Tuned receivers with variable bandwidth IF filters

Measurement rate: ~1 ms per point

Frequency resolution: 1 Hz S-Parameter Measurement:

Forward and reverse parameters with single connection

Continuous updating of all four S-parameters for two-port error correction

Dynamic range: Up to 105 dB Data & Display:

3.5-inch floppy disk drive (DOS and LIF formats)

Large color display

Measurement formats: rectangular, polar, Smith chart, group delay, deviation from linear phase, complex impedance/admittance, SWR

Time-domain analysis with Option 010 for fault location and fixture response gating

Key Features

High-speed sweeps with measurement updates as fast as 1 ms per point

1 Hz frequency resolution for narrowband device characterization

Electronic calibration (ECal) support with waveguide calibration kits for specific bands

Solid-state test set for bidirectional measurements without reconnection

Option 085 enables high-power testing up to +43 dBm (20 watts) input and output

Typical Applications RF and microwave component testing including filters, amplifiers, mixers, multiport devices, and cables in coaxial and non-coaxial configurations. Suitable for R&D, manufacturing, incoming inspection, and quality assurance workflows.

Compatibility & Integration Built-in data storage via 3.5-inch floppy disk supports DOS and LIF formats. Electronic calibration modules and waveguide calibration kits available for extended frequency bands.