Keysight E4991A Impedance Analyzer

Keysight E4991A RF Impedance / Material Analyzer

Overview

The Keysight E4991A RF Impedance/Material Analyzer is an advanced solution designed for high-precision impedance measurements and material evaluations from 1 MHz to 3 GHz. With its cutting-edge RF-IV technique, it delivers more accurate results than traditional reflection methods, making it an essential instrument for R&D, quality assurance, and production testing.

Key Features

• Frequency sweep range: 1 MHz to 3 GHz with 1 mHz resolution

• Basic accuracy: ±0.8% across a wide impedance range

• Oscillator level: Up to 1 dBm / 0.5 Vrms / 10 mArms

• DC bias (Option 001): ±40 V or ±50 mA

• User interface: Windows-style, with built-in VBA programming

• Connectivity: Fast data transfer via LAN interface

Advanced Capabilities

• Dielectric / Magnetic Material Measurement (Option 002)
  Enables accurate analysis of dielectric and magnetic properties across a broad frequency range, supporting advanced material research and industrial applications.

• On-Wafer Measurement (Option 010)
  Simplifies integration with RF probe systems for direct on-wafer impedance testing, providing reliable results for semiconductor device characterization.

• Temperature Characteristic Measurement (Option 007)
  Offers precise analysis of temperature-dependent characteristics from -55 °C to +150 °C, with advanced temperature drift compensation for reliable material and component evaluation.

Applications

The Keysight E4991A is widely used in:

• R&D of high-frequency electronic components

• Semiconductor device characterization

• Dielectric and magnetic material testing

• Temperature stability and reliability analysis