The Agilent/Keysight 8720D is a vector network analyzer for RF and microwave component characterization from 50 MHz to 20 GHz. It integrates a fast-sweeping synthesized source, tuned receiver, and solid-state S-parameter test set in a single instrument. The 8720D delivers measurements up to seven times faster than earlier models and supports two independent channels for simultaneous dual-measurement display.
Technical Specifications
Frequency Performance
• Operating range: 50 MHz to 20 GHz
• Frequency resolution: 1 Hz
• Frequency accuracy: 10 ppm
• Source stability: 10 ppm
Dynamic Range & Power
• Dynamic range: Up to 105 dB
• Maximum output power (standard): +5 dBm (50 MHz to 20 GHz)
• Minimum output power (standard): –70 dBm (50 MHz to 20 GHz)
• Power resolution: 0.01 dB
• Power flatness: ±1.5 dB (50 MHz to 20 GHz)
• Power sweep range: 20 dB
Measurement Capabilities
• Channels: Two independent measurement channels
• Measurement formats: Magnitude, phase, group delay, SWR, Smith Charts, cartesian, polar
• Error correction: Vector receiver with error correction and time domain (Option 010)
• Test set: Integrated solid-state switching S-parameter test set
• High-power measurements: Up to 20 watts with Option 085
Test Port Connectors
• 3.5 mm (13.5 GHz and 20 GHz models)
• 2.4 mm (40 GHz models)
Physical & Data
• Dimensions: 222 mm (H) × 425 mm (W) × 457 mm (D)
• Net weight: 25 kg
– Key Features
• Forward and reverse S-parameter measurement with single connection
• Enhanced processor enables accelerated measurement and data transfer
• Vector receiver with integrated error correction
• Available options: Mechanical transfer switch (007), time domain (010), direct sampler access (012), high-power test set (085), frequency offset mode (089), high-stability reference (1D5), 4th sampler with TRL calibration (400), and 3-port switching test set (K39)
– Typical Applications
Component characterization, amplifier and filter testing, impedance matching verification, transmission line analysis, and manufacturing quality assurance across R&D and production environments.
– Compatibility & Integration
HP-IB (IEEE 488) interface enables system automation and external control. Serial and parallel ports support improved data handling for automated test sequences.
