Agilent/Keysight P5021B

The Keysight P5021B is a compact, PC-based vector network analyzer from the Streamline Series, designed for RF and microwave component characterization without compromising measurement capability. Operating across 9 kHz to 6.5 GHz, this faceless instrument connects via Thunderbolt 3 to a host PC, eliminating the need for traditional benchtop footprints while maintaining the proven measurement science of Keysight's flagship VNA platforms. Available in 4-port or 6-port configurations - with cascading capability for extended port counts - the P5021B delivers 148 dB dynamic range at 1 MHz IF bandwidth and 50 Ω input impedance.

The analyzer supports linear, log, segment, CW, power, and DC source sweep types, enabling S-parameter measurements across passive components, amplifiers, and frequency converters. Its software ecosystem includes time domain reflectometry, automatic fixture removal, noise figure measurement with vector correction, pulsed-RF analysis, embedded local oscillator capability, gain compression, spectrum analysis, multiport calibrated measurements, and intermodulation distortion characterization. Optional configurations unlock a second source (4-port models), frequency offset mode, and internal pulse generators and modulators.

Technical Specifications

• Frequency Range: 9 kHz to 6.5 GHz


• Port Configurations: 4-port (Option 400) or 6-port (Option 600); cascading supported


• Input Impedance: 50 Ω


• Dynamic Range: 148 dB (at 1 MHz IFBW)


• IF Bandwidth: Up to 1 MHz


• Host Interface: Thunderbolt 3 (USB Type-C)


• Sweep Modes: Linear, log, segment, CW, power, DC source

Key Features

• Faceless design optimized for portable test setups


• No onboard storage - suitable for classified environments


• Identical measurement science and GUI/SCPI command set to PNA, ENA, and PXI VNA platforms


• Second source option (4-port models)


• Frequency offset mode and internal pulse generator/modulator options available

Typical Applications

• S-parameter characterization of passive RF components


• Amplifier and frequency converter testing


• High-power device measurements


• Time domain and noise figure analysis


• Intermodulation distortion characterization

Compatibility & Integration The P5021B leverages Keysight's established VNA measurement framework, enabling direct code and configuration reuse across instrument families. Electronic calibration (ECal) is supported, and direct receiver access (DRA) configurations are available.