E4991B Impedance Analyzer
- ModelE4991B（频率选件：050/100/300）
- AttributesLCR Meter and Impedance Measurement Products
- Category KEYSIGHT > LCR Meters & Impedance Measurement Products
- BrandKEYSIGHT
- DescriptionThe Keysight E4991B impedance analyzer covers 1 MHz to 3 GHz with 0.45% basic accuracy, supports DC bias and dielectric/magnetic permeability material measurements, suitable for impedance characteristic analysis and temperature characteristic testing of R
Detailed Introduction Technical Documents
Introduction
Keysight E4991B Impedance Analyzer, with a frequency range of 1 MHz to 500 MHz/1 GHz/3 GHz, delivers 0.45% basic accuracy (typical) and a wide impedance measurement range, and supports dielectric/permeability testing of materials and high-low temperature characteristic analysis.
Performance Features
Wide frequency coverage: 1 MHz to 3 GHz (Option 300), 1 mHz resolution, ±10 ppm frequency accuracy (at 23℃±5℃)
High basic accuracy: 0.45% typical. With open/short/load calibration, it enables high-precision impedance measurement
Built-in DC bias (Option 001): voltage bias 0 to ±40V (1mV resolution), current bias 0 to ±100mA (2μA resolution)
Material measurement function (Option 002): supports testing of dielectric constant (εr'、εr''、tanδ) and permeability (μr'、μr''、tanδ), compatible with 16453A/16454A fixtures
Wide impedance measurement range: 120 mΩ to 52 kΩ (1 MHz, point average ≥8, -3 dBm/-13 dBm, accuracy ≤±10%)
Flexible sweep and analysis: linear/logarithmic frequency, OSC level, DC bias sweep, up to 1601 measurement points, up to 201 segments for segmented sweep; supports equivalent circuit analysis, limit line test, cursor search, etc.
Large screen display: 10.4-inch TFT color LCD (1024×768), supports multi-channel, multi-trace display and data operation
Applications
Impedance/admittance characteristic analysis of RF components (inductors, capacitors, resonators, filters)
Dielectric constant, permeability and loss tangent testing of dielectric materials and magnetic materials
Parasitic parameter evaluation of semiconductor devices
Temperature characteristic analysis of components (-55℃ to +150℃) (with Option 007 and high-temperature test fixture)
Technical Specifications
Parameter Category | Detailed Specification |
Measurement Terminal | 7mm connector on test head |
Measurement Parameters | Impedance parameters: Z,Y, Ls, Lp, Cs, Cp, Rs(R), Rp, X, G, B, D, Q, θz, θy,Γ, Γx, Γy, Vac, Iac Material parameters (Option 002): εr, εr', εr'', tanδ,μr, μr', μr'', tanδ |
Frequency Range | 1 MHz - 500 MHz (Option 050)/ 1 GHz (Option 100)/ 3 GHz (Option 300) |
Frequency Resolution | 1 mHz |
Frequency Accuracy | ±10 ppm（23℃±5℃）；±20 ppm（5-40℃）；Option 1E5: ±1 ppm（5-40℃） |
Oscillator Level (Power) | -40 dBm to +1 dBm (50Ω load), 0.1 dB resolution |
Oscillator Level (Voltage) | 4.47 mVrms to 502 mVrms (open circuit) |
Oscillator Level (Current) | 0.0894 mArms to 10 mArms (short circuit) |
Basic Accuracy (Typical) | 0.45% (impedance magnitude) |
Impedance Measurement Range | 120 mΩ to 52 kΩ (1 MHz, point average ≥8, -3 dBm/-13 dBm, accuracy ≤±10%) |
DC Bias (Option 001) | Voltage: 0 to ±40V, 1mV resolution, accuracy ±{0.05%+5mV+(Idc×20Ω)} |
Number of Measurement Points | 2 to 1601 points |
Sweep Type | Linear/Log frequency, OSC level (Power/Voltage/Current), DC bias (Voltage/Current), Segment Sweep |
Averaging Type | Sweep-to-Sweep Averaging, Point Averaging (1 to 999) |
Calibration Method | Open/Short/Load Calibration, Low-loss Capacitance Calibration, Port Extension Compensation, Open/Short Compensation |
Display | 10.4-inch TFT Color LCD, 1024×768 (XGA) |
Number of Traces | Up to 4 data traces + 4 memory traces per channel |
Accessories
Standard Accessories | Power Cable, Operation Manual (CD), Test Head (7mm), Test Head Cable, Calibration Kit (Open/Short/Load Standards) |
Frequency Option | E4991B-050（1 MHz-500 MHz）、E4991B-100（1 MHz-1 GHz）、E4991B-300（1 MHz-3 GHz） |
DC Bias Option | E4991B-001（Built-in DC bias voltage/current source） |
Material Measurement Option | E4991B-002（Permittivity/permeability measurement software and algorithm） |
High Temperature Test Option | E4991B-007（High temperature characteristic test kit, for use with 16453A/16454A, -55℃ to +150℃） |
High Stability Frequency Reference Option | E4991B-1E5（High stability frequency reference, ±1ppm） |
Test Fixture | 16453A（Dielectric material test fixture）、16454A（Magnetic material test fixture） |
Other Options | E4991B-010（Enhanced oscillator level accuracy）、1CM（Rack mount kit）、1A7（ISO 17025 calibration certificate） |
Interfaces
Standard
GPIB（IEEE-488）、LAN（10/100/1000 Base-T Ethernet）、USB（Type B, USBTMC-USB488）、USB host port（Type A, for connecting mouse/keyboard/printer）、Video output（15-pin VGA）
Options
Handler Interface (Handler I/F, 36-pin Centronics), External Trigger Input (BNC), External Reference Input (BNC), Internal Reference Output (BNC), High-stability Frequency Reference Output (Option 1E5, BNC)
Physical Specifications
Main Unit Dimensions (L×W×H) | Approx. 430×280×450 mm |
Main Unit Weight | 13 kg |
Test Head Dimensions | Approx. 100×80×30 mm |
Test Head Weight | 1 kg |
Friendly Reminder: The above product information is compiled based on official technical materials of Keysight Technologies, for reference only. Product specifications, options and configurations may be adjusted due to manufacturer updates, please refer to the actual delivered product and the latest official release for details.
