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N5239A PNA-L Microwave Network Analyzer, 8.5 GHz
Category:
Network analyzer
Desktop network analyzer
Product Attachment:
- Product Description
- Selection
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- Brand: 是德科技
- Commodity name: N5239A PNA-L Microwave Network Analyzer, 8.5 GHz
- Brand: Keysight Technologies
Authoritative Analysis: Keysight N5239A PNA-L Microwave Network Analyzer
I. Core Positioning and Technical Parameters (Based on Official Website and Authoritative Data)
II. Typical Application Scenarios and Adaptability Analysis
- Passive Component Testing ：
- S-parameter measurement of filters (such as 5G Sub-6GHz bandpass filters), couplers, and power dividers.
- Frequency response analysis of dielectric resonators (DRO) (accuracy up to 0.01Hz).
- Simple Active Component Evaluation ：
- Gain flatness of low-noise amplifiers (LNA) (e.g., gain fluctuation <0.5dB for 6GHz Wi-Fi modules).
- Conversion loss and port isolation test of mixers (e.g., LO-IF isolation >30dB).
- Material and Cable Characterization ：
- Insertion loss (e.g., loss <0.5dB/m at 8.5GHz) and voltage standing wave ratio (VSWR <1.2) measurement of RF cables.
- Extraction of complex permittivity of dielectric materials (such as FR4 substrates) (through reflection/transmission method).
- Cannot cover millimeter-wave frequency bands (such as above 24GHz); 76-81GHz automotive radar testing requires upgrading to N5240A or higher models.
- If expansion to millimeter wave is required, an external down-conversion module (such as the 11970V series) can be used, but this will introduce additional loss (e.g., >3dB at 20GHz).
III. Key Considerations for High-Frequency Testing
- Standard Interface N-type (50Ω); above 20GHz requires upgrading to a 3.5mm connector (such as option 001).
- Calibration Fixture Selection ：
- Below 8.5GHz: Use the 125A series N-type calibration fixture (covering 10MHz-18GHz).
- If an external module is used to expand to 20GHz: Requires a 3.5mm precision calibration fixture (such as 125B-265).
- Electronic Calibration (ECal) Achieves fast calibration (<30 seconds) through the 85032E module, reducing manual calibration errors (such as directivity error <0.05dB).
- Temperature Stability It is recommended to test at 23±2℃ to avoid temperature drift causing measurement fluctuations (e.g., 0.01dB amplitude error caused by 1℃ drift).
- For higher frequency or extended functionality, consider upgrading to N5239B (8.5GHz, supports touchscreen and automated testing) or N5222A (9kHz-20GHz, supports vector signal analysis).
IV. Discontinuation and Support Status
- The N5239A entered the "limited support" phase in June 2024, and repair and calibration services are gradually being reduced.
- Keysight Technologies recommends Hardware/Firmware Upgrade Plan Migrating to the B model, the cost is only 30-50% of the new product.
- Fully compatible with the N5230C; existing test codes and fixtures can be reused directly, protecting users' existing investments.
V. Summary: Selection Decision Reference
- Recommended Scenarios ：
- University laboratories or small and medium-sized enterprise R&D with limited budgets.
- Mass production testing of Sub-6GHz RF components (such as filters, antennas).
- Preliminary evaluation of simple active devices (such as LNAs, mixers).
- Pitfalls to Avoid ：
- Avoid use for testing above 8.5GHz (such as 5G millimeter wave).
- High-frequency testing requires low-loss cables (such as 85133D-265) and high-precision calibration components to ensure system error <0.1dB.
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I. Hardware Options and Basic Configuration
1. Frequency Range and Port Characteristics
- Basic Model: 2-port, covering 300 kHz to 8.5 GHz, suitable for S-parameter measurements of low-loss components (e.g., filters, antennas).
- Dynamic Range: Up to 133 dB at 20 GHz, trace noise as low as 0.004 dB rms (1 kHz IFBW), supporting high-precision low-loss testing.
- Output Power: Extended power range from -55 to +13 dBm, built-in 60 dB step attenuator, suitable for linear/nonlinear characteristic analysis of active devices such as amplifiers.
2. Calibration and Accessories
- Mechanical Calibration Kits:
- 85052D: 3.5 mm calibration kit, covering 300 kHz to 20 GHz, supports SOLT calibration.
- 85052D-001: 2.4 mm calibration kit, suitable for high-frequency testing (e.g., 40/50 GHz extension).
- Electronic Calibration (ECal) Module: N4691A, single-connection fast calibration, supports 2 ports, reduces manual operation errors.
- Test Cable: 85131F, 3.5 mm flexible test cable, suitable for 300 kHz to 20 GHz band, ensures signal integrity.
3. Functional Expansion Options
- -010 Time Domain Measurement: Supports pulse signal analysis (e.g., dynamic response of radar modules), pulse width as low as 2 μs.
- -1CP Rack Mount Kit: Adapts to standard 19-inch cabinets, improving production line integration.
- -216 Configurable Test Set: Integrates power attenuators, simplifying automated testing of complex RF links.
- -UK6 Calibration Certificate: Provides official calibration report with test data, meeting quality certification requirements.
II. Software Functions and Application Scenarios
1. Advanced Measurement Functions
- Fixture De-embedding: Eliminates test fixture effects through TRL/LRM calibration, suitable for high-precision measurements of wafer-level and packaged devices.
- Mixer/Converter Testing: Built-in wizard automatically measures conversion loss, local oscillator (LO) leakage, and other parameters, simplifying RF front-end design verification.
- Multi-mode Scan: Supports linear/log/power sweeps, adapting to the testing requirements of different devices such as filters, antennas, and amplifiers.
2. Automation and Compatibility
- Built-in VBA Programming: Customize test scripts, batch execute multi-port S-parameter sweeps, data storage, and report generation.
- Spectrum Analysis Function: Integrates a spectrum analyzer via option -090, enabling combined analysis of signal integrity and frequency domain characteristics.
3. Typical Applications
- Wireless Communication:
- Test S-parameters of Wi-Fi 6E antennas, RF front-end modules, and verify signal integrity with time-domain options.
- Evaluate in-band loss and out-of-band rejection characteristics of 5G IF filters.
- Materials and Semiconductors:
- Analyze dielectric constant and loss characteristics of high-frequency substrates (e.g., FR4, PTFE), supporting TRL calibration.
- Perform on-chip component (e.g., RF transistor) S-parameter testing in conjunction with a wafer probe station.
- Education and R&D:
- Basic RF teaching experiments (e.g., Smith chart analysis, impedance matching).
- Development of low-cost solutions, suitable for budget-sensitive laboratory environments.
III. Discontinuation Status and Replacement Suggestions
- For higher integration and operational convenience, choose N5239B, which supports an intuitive graphical interface and fast calibration process.
- If frequency extension to 13.5 GHz is needed, N5231B is the better choice, and it is compatible with existing test fixtures and scripts.
IV. Configuration Suggestions
- Basic RF Testing: Option -010 (Time Domain Measurement) + 85052D Calibration Kit + N4691A ECal Module.
- Material Analysis: Option -010 + 85052D-001 High-Frequency Calibration Kit + Dielectric Test Fixture (e.g., Keysight 16453A).
- Automated Production Line: Option -1CP (Rack Mount) + -216 (Configurable Test Set) + Customized VBA Scripts.
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Tel: +86-135 1042 6680
Email: harriosn@sengt.com
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