Keysight (Agilent) E4991A RF Impedance/Material Analyzer, 1 MHz – 3 GHz

The Keysight E4991A RF Impedance/Material Analyzer delivers high-precision impedance measurements and material characterization from 1 MHz to 3 GHz using RF-IV measurement techniques. This approach provides superior accuracy across wide impedance ranges compared to traditional reflection methods, making it ideal for low-inductance and low-capacitance components. The analyzer measures 16 impedance and equivalent-circuit parameters with ±0.8% basic accuracy and exceptional performance on high-Q components.

– Technical Specifications

• Frequency Range: 1 MHz to 3 GHz
• Frequency Resolution: 1 mHz
• Measurement Points: Up to 801 sweep points
• Basic Accuracy: ±0.8%
• Oscillator Output: Up to 1 dBm / 0.5 Vrms / 10 mArms
• Impedance Parameters: |Z|, θZ, |Y|, θY, R, X, G, B, CS, CP, LS, LP, RP, RS, D, Q

– Key Features

• Equivalent Circuit Analysis: Five selectable multi-parameter models for component modeling
• Display: 8.4-inch TFT color LCD with 5-trace, 9-marker capability
• Marker and Limit Functions: Streamlined test workflows
• DC Bias Option (E4991A-001): ±40 V or ±50 mA applied bias
• Material Measurement Option (E4991A-002): Permittivity (∈r) and permeability (μr) characterization to 1 GHz with dielectric and magnetic test fixtures
• On-Wafer Measurement Option (E4991A-010): Probe station integration with guaranteed specifications at 7 mm test head port
• Temperature Analysis Option (E4991A-007): Component and material testing from -55 °C to +150 °C with drift compensation

– Typical Applications

Research and development, quality assurance, and manufacturing environments requiring detailed analysis of electronic components and materials across the RF spectrum.

– Connectivity and Control

• Interfaces: LAN, GPIB, USB
• Graphical User Interface: Windows-style GUI
• Automation: Built-in VBA programming with remote control capability