Keysight PNA-X N5245A Vector Network Analyzer
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | N5245A |
| Pricing | Upon Request |
Overview
The Keysight PNA-X N5245A is a high-performance microwave vector network analyzer engineered for precision characterization of active and passive RF/microwave components across an industry-leading frequency range of 10 MHz to 50 GHz. Based on Keysight’s proprietary heterodyne architecture with dual internal synthesized sources, the N5245A implements full two-port or four-port S-parameter measurement using coherent receiver technology, enabling phase-accurate, time-domain–capable vector analysis. Its integrated hardware platform combines two ultra-low-harmonic signal sources, a built-in signal combiner, pulse modulators, low-noise receivers, and programmable RF switching matrices—allowing comprehensive linear and nonlinear measurements—including gain compression, intermodulation distortion (IMD), harmonic and mixer/converter response—all within a single DUT connection. This architecture eliminates manual reconfiguration, reduces calibration overhead, and supports traceable, repeatable measurements under R&D, validation, and high-volume production environments.
Key Features
- Dual internal signal sources (10 MHz–50 GHz) with <−65 dBc harmonics and <0.1° phase resolution for true two-tone and swept-frequency stimulus generation
- Integrated pulse modulation and pulse generator for time-gated S-parameter and pulsed-RF measurements (e.g., radar front-end characterization)
- Four-receiver architecture supporting simultaneous forward/reverse reflection and transmission measurements with >135 dB dynamic range (typ.)
- Onboard path-switching matrix enabling automated sequential measurements (e.g., S-parameters, noise figure, gain compression) without physical re-cabling
- True differential stimulus capability with balanced port calibration support for differential amplifiers, baluns, and high-speed interconnects
- Nonlinear vector network analysis (NVNA) mode with X-parameter modeling for behavioral simulation and harmonic-balance verification
- Multi-receiver noise figure measurement using Y-factor and cold-source methods compliant with IEEE 145-2022 and IEC 62037-4
Sample Compatibility & Compliance
The N5245A supports measurement configurations across coaxial (3.5 mm, 2.4 mm), wafer-probe (on-wafer), and fixture-based test environments. Calibration options include SOLT, TRL/LRM, and user-defined de-embedding for complex packaging effects. All firmware and measurement applications comply with ISO/IEC 17025 requirements for accredited laboratories and support audit-ready GLP/GMP workflows via optional 21 CFR Part 11-compliant software modules. Measurement uncertainty budgets are traceable to NIST standards through Keysight’s factory calibration certificates (ISO/IEC 17025-accredited). The instrument meets FCC Part 15 Class A and CE EMC Directive 2014/30/EU emissions limits.
Software & Data Management
The PNA-X runs Keysight PathWave Vector Network Analyzer Software (formerly ADS PathWave VNA), providing unified control for linear, noise, compression, and nonlinear measurements. Data export supports Touchstone (.s2p, .s4p), CSV, HDF5, and MATLAB-compatible binary formats. Remote operation is enabled via SCPI over LAN, USB-TMC, or GPIB; RESTful API integration allows orchestration within automated test systems (ATE) and CI/CD pipelines. Audit logs record operator ID, timestamp, calibration state, and measurement parameters—enabling full traceability for FDA-regulated development or aerospace qualification programs. Optional PathWave IC-CAP integration supports X-parameter model extraction and device-level behavioral simulation.
Applications
- RF power amplifier design and validation: AM-AM/AM-PM distortion, adjacent channel power ratio (ACPR), and memory effect analysis
- Mixer and frequency converter characterization: conversion loss/gain, LO-to-RF isolation, image rejection, and sideband asymmetry
- Millimeter-wave component testing: waveguide transitions, antenna array elements, and 5G FR2 front-end modules up to 50 GHz
- High-speed digital interconnect modeling: S-parameter-based channel compliance (PCIe 6.0, USB4 Gen 3), crosstalk, and impedance discontinuity analysis
- Defense and aerospace subsystem verification: T/R module linearity, radar cross-section (RCS) simulation support, and EMI susceptibility pre-scanning
- Research in nonlinear electromagnetics: harmonic balance validation, large-signal stability assessment, and envelope domain simulation
FAQ
What calibration kits are supported for on-wafer measurements?
The N5245A supports Keysight’s 85052D, 85056D, and CMOS-compatible probe station calibration kits (e.g., Cascade Summit 12000 series) with automatic kit definition import and multi-line TRL calibration.
Can the N5245A perform noise figure measurements without an external noise source?
Yes—the instrument includes a built-in noise source option (Option 029) and supports cold-source noise figure measurement using its low-noise receivers, eliminating dependency on external hardware.
Is X-parameter modeling compatible with third-party simulation tools?
X-parameter datasets exported from the N5245A are fully compatible with Keysight PathWave ADS, Cadence Virtuoso RF Option, and Ansys HFSS Circuit, enabling co-simulation with electromagnetic solvers.
How does the internal switching matrix improve measurement repeatability?
The matrix minimizes cable movement and connector wear by routing signals electronically, reducing mechanical hysteresis and thermal drift—critical for production test cells requiring >99.9% measurement repeatability over 8-hour shifts.
Does the N5245A support real-time spectrum analysis during S-parameter sweeps?
While not a real-time spectrum analyzer, the N5245A provides time-domain gated analysis and fast Fourier transform (FFT) of time-domain reflectometry (TDR) data, with optional real-time IF digitization (Option 089) for transient event capture.
