The S3987 series of Noise Figure Analyzers comprises seven distinct models: the S3987B (10 MHz –8 GHz), S3987D (10 MHz –18 GHz), S3987E (10 MHz –26.5 GHz), S3987F (10 MHz –40 GHz), S3987H (10 MHz –50 GHz), S3987L (10 MHz –67 GHz), and S3987P (10 MHz –110 GHz). These instruments feature a wide frequency coverage range, flexible band selection, high reception sensitivity, a user-friendly interface, a large high-definition touchscreen display, and support for various noise source drivers. They are capable of measuring the noise figure and gain of amplifiers, up-converters, and downconverters, and support the automated measurement of noise figures for multi-stage frequency conversion receiver links. The series features an intuitive guided interface for setting measurement modes, offering multiple input interaction methods to simplify the configuration process. It includes comprehensive loss compensation capabilities, allowing for the compensation—either via fixed values or lookup tables—of losses introduced by the measurement channels positioned before and after the Device Under Test (DUT). A built-in noise figure measurement uncertainty calculator enables the quantitative analysis of measurement uncertainty, while a limit line function provides pass/fail notifications, thereby simplifying the determination of test compliance. The user-friendly design makes it easier for engineering professionals to correctly configure measurement settings, as well as to view and save measurement results in various formats. These products are widely applicable in the research and development, manufacturing, testing, and technical support of electronic equipment within sectors such as telecommunications and integrated circuits.
S3987 Series Noise Figure Analyzer
Key Features
Wideband coaxial coverage from 10 MHz to 110 GHz, supporting full-band sweep measurements
High-sensitivity reception and high-precision testing
Wide dynamic measurement range
Intuitive user interface with a brand-new interactive experience
Measurement modes for amplifiers, upconverters, and downconverters
Comprehensive loss compensation capabilities
Limit line function with Pass/Fail test indications
Single-sideband and double-sideband measurement capabilities
Flexible file and table management functions
Support for driving various noise sources
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Clean User Interface, Brand-New Interactive Experience.
The S3987 series Noise Figure Analyzer features an 11.6-inch touch display, offering a more comprehensive and intuitive visual experience. It supports multiple display formats—including graphical, tabular, meter, and combined graphical-tabular views—enabling the simultaneous display of measurement results for parameters such as noise figure, gain, Y-factor, equivalent temperature, hot power, and cold power, plotted against frequency.
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Amplifier, Upconverter, and Downconverter Measurement Modes.
1) The Basic Amplifier Measurement Mode is used for measuring the noise figure and gain of amplifier-type Devices Under Test (DUTs) whose frequency range falls within that of the Noise Figure Analyzer; the System Down-conversion Mode is used for measuring the noise figure and gain of amplifier-type DUTs whose frequency range extends beyond that of the Noise Figure Analyzer.
2) Features noise figure and gain measurement capabilities for both up-converters and down-converters, and supports automated swept measurements of noise figure and gain for multi-stage frequency conversion links.
3) Provides a highly intuitive interface for configuring measurement modes, allowing users to complete all relevant measurement settings for a selected mode within a single configuration screen. -
Comprehensive Loss Compensation Function
It enables the compensation of losses within the pre- and post-measurement channels of the device under test (DUT)—either in a fixed or tabular format—thereby facilitating the precise measurement of noise figures in automated test systems or microwave/millimeter-wave bare dies.
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Pass/Fail Test Indication: Limit Line Function.
The Pass/Fail notification feature, utilizing limit lines, simplifies qualification testing and facilitates use on production lines. Limit line types include both upper and lower thresholds; each display channel can be individually configured with a pair of upper and lower limit lines. If a measurement result falls outside the set limit range, the instrument immediately displays a “Fail” notification in red text.
| Frequency Range | 10MHz-8GHz/18GHz/26.5GHz/40GHz/50GHz/67GHz/110GHz |
| Frequency Reference Accuracy | ±＜2×10-7 |
| Frequency Tuning Accuracy | ±＜90kHz 10MHz≤f≤8GHz ±＜300kHz 8GHz＜f≤110GHz |
| Noise Figure Measurement Range | 0 dB –30 dB (Excess Noise Ratio: 12 dB –17 dB) 0 dB –35 dB (Excess Noise Ratio: 20 dB –22 dB) |
| Noise Figure Measurement Uncertainty | ± <0 .10 dB (Measurement Range: 0 dB –30 dB) ± <0 .15 dB (Measurement Range: 0 dB –35 dB) |
| Gain Measurement Range | -20dB – +40dB |
| Gain Measurement Uncertainty | ±＜0 .17dB |
| Input Port Standing Wave Ratio | S3987B: ≤1 .90:1 10MHz≤f≤8GHz S3987D: ≤1.90：1 10MHz≤f≤8GHz ≤2.20：1 8GHz＜f≤18GHz S3987E: ≤1.90：1 10MHz≤f≤8GHz ≤2.20：1 8GHz＜f≤26.5GHz S3987F: ≤1.90：1 10MHz≤f≤8GHz ≤2.20：1 8GHz＜f≤40GHz S3987H: ≤1.90：1 10MHz≤f≤8GHz ≤2.20：1 8GHz＜f≤40GHz ≤2.50：1 40GHz＜f≤50GHz S3987L: ≤1.90：1 10MHz＜f≤8GHz ≤2.20：1 8GHz＜f≤50GHz ≤2.50：1 50GHz＜f≤67GHz |
| Intrinsic Noise Figure | S3987B: ＜9 .0dB 10MHz≤f≤8GHz S3987D: ＜9 .0dB 10MHz≤f≤8GHz ＜8 .5dB 8GHz＜f≤18GHz S3987E: ＜9 .0dB 10MHz≤f≤8GHz ＜9 .0dB 8GHz＜f≤26.5GHz S3987F: ＜9 .0dB 10MHz≤f≤8GHz ＜10 .0dB 8GHz＜f≤40GHz S3987H: ＜9 .0dB 10MHz≤f≤8GHz ＜10 .0dB 8GHz＜f≤40GHz ＜12 .0dB 40GHz＜f≤50GHz S3987L: ＜10 .0dB 10MHz≤f≤8GHz ＜16 .0dB 8GHz＜f≤50GHz ＜14 .0dB 50GHz＜f≤67GHz S3987P: ＜18 .5dB 10MHz≤f≤50GHz ＜20.0dB 50GHz＜f≤110GHz |
| Jitter (Unevenness) | ＜0.15dB |
| Noise Source Drive Voltage | < 1.0 V (Noise source off) +28.0 V ± 0.20 V (Noise source ON) |
| Dimensions (W × H × D) | Overall Dimensions: Width × Height × Depth: (474 .6 ± 4) mm × (193 ± 2 .5) mm× (559 .5 ± 4) mm |
| Weight | ≤25kg |
| Power supply | Powered by a 110V–220V single-phase AC supply with a frequency of 50 Hz/60 Hz; the allowable steady-state voltage range is ±10% of the rated value, and the allowable steady-state frequency range is ±5% of the rated value. |
| Maximum Power Consumption | 250W |
| Temperature Range | Operating Temperature: 0°C to +40°C Storage Temperature: -40°C to +70°C |
| Input Port Configuration | S3987B/D/E: 3.5mm (Male), Impedance 50Ω |
Main Machine
| Module No. | Item | Description |
| S3987B | Noise Figure Analyzer | 10 MHz to 8 GHz |
| S3987D | Noise Figure Analyzer | 10 MHz to 18 GHz |
| S3987E | Noise Figure Analyzer | 10 MHz to 26.5 GHz |
| S3987F | Noise Figure Analyzer | 10 MHz to 40 GHz |
| S3987H | Noise Figure Analyzer | 10 MHz to 50 GHz |
| S3987L | Noise Figure Analyzer | 10 MHz to 67 GHz |
| S3987P | Noise Figure Analyzer | 10 MHz to 110 GHz |
Options
| Module No. | Item | Description |
| S3987-H05 | Aluminum Alloy Transport Case | High-strength, lightweight aluminum alloy transport case, equipped with handles and wheels for convenient transport. |
| S3987-H97 | Mounting Kit | For rack-mounting the S3987 in a cabinet. |
| S3987-H98 | English Kit | English control panel, English manual, English user interface, and English operating system. |
| S3987B-JL | Metrology Services | Metrology Calibration Service, providing a calibration report. Applicable to S3987B. |
| S3987D-JL | Metrology Services | Metrology Calibration Service, providing a calibration report. Applicable to S3987D. |
| S3987E-JL | Metrology Services | Metrology Calibration Service, providing a calibration report. Applicable to S3987E. |
| S3987F-JL | Metrology Services | Metrology Calibration Service, providing a calibration report. Applicable to S3987F. |
| S3987B-EWT1 | 1-Year Extended Warranty (Beyond the Standard Warranty Period) | A one-year warranty extension is available beyond the standard warranty period; a two-year extension option is also available, and so on. This service excludes calibration and covers only the one way shipping cost of the item. |
| S3987D-EWT1 | 1-Year Extended Warranty (Beyond the Standard Warranty Period) | A one-year warranty extension is available beyond the standard warranty period; a two-year extension option is also available, and so on. This service excludes calibration and covers only the one way shipping cost of the item. |
| S3987E-EWT1 | 1-Year Extended Warranty (Beyond the Standard Warranty Period) | A one-year warranty extension is available beyond the standard warranty period; a two-year extension option is also available, and so on. This service excludes calibration and covers only the one way shipping cost of the item. |
| S3987F-EWT1 | 1-Year Extended Warranty (Beyond the Standard Warranty Period) | A one-year warranty extension is available beyond the standard warranty period; a two-year extension option is also available, and so on. This service excludes calibration and covers only the one way shipping cost of the item. |
| S3987H-EWT1 | 1-Year Extended Warranty (Beyond the Standard Warranty Period) | A one-year warranty extension is available beyond the standard warranty period; a two-year extension option is also available, and so on. This service excludes calibration and covers only the one way shipping cost of the item. |
| S3987L-EWT1 | 1-Year Extended Warranty (Beyond the Standard Warranty Period) | A one-year warranty extension is available beyond the standard warranty period; a two-year extension option is also available, and so on. This service excludes calibration and covers only the one way shipping cost of the item. |
| S3987P-EWT1 | 1-Year Extended Warranty (Beyond the Standard Warranty Period) | A one-year warranty extension is available beyond the standard warranty period; a two-year extension option is also available, and so on. This service excludes calibration and covers only the one way shipping cost of the item. |
