Auniontech 3674P High-Performance Vector Network Analyzer (10 MHz – 110 GHz)
| Brand | Auniontech |
|---|---|
| Model | 3674P |
| Frequency Range | 10 MHz – 110 GHz |
| IF Bandwidth | 1 Hz – 30 MHz |
| Max. Sweep Points | 200,001 |
| Dynamic Range | up to 140 dB (typ., 0.5–4 GHz, with options) |
| Harmonic Suppression | up to –72 dBc (14–67 GHz) |
| Output Power Range | –5 dBm to +16 dBm (configurable by band and option) |
| Touchscreen | 15.6-inch capacitive multi-touch display |
| Measurement Functions | 21 integrated applications including Pulse S-parameters, THD, Spectrum Analysis, Mixer/Converter Scalar & Vector Measurements, Gain Compression, Noise Figure, Signal Integrity, Active IMD, and Auto Fixture Removal |
Overview
The Auniontech 3674P is a high-frequency, high-dynamic-range vector network analyzer engineered for precision characterization of microwave and millimeter-wave components across R&D, production test, and metrology environments. Operating from 10 MHz to 110 GHz in coaxial configuration, it implements full two-port (or four-port with option) heterodyne receiver architecture with dual independent synthesized sources, enabling true vector error correction via full 12-term S-parameter calibration. Its RF architecture supports both standard S-parameter acquisition and advanced mixed-domain measurements—including time-domain gating, pulse-modulated S-parameters, and real-time spectrum analysis—without hardware reconfiguration. Designed for demanding applications such as on-wafer semiconductor device validation, 5G/6G front-end module characterization, radar component qualification, and high-speed interconnect modeling, the 3674P delivers traceable, repeatable, and standards-aligned measurement integrity under GLP/GMP-compliant workflows.
Key Features
- Ultra-Wideband Coaxial Coverage: Seamless 10 MHz–110 GHz frequency range in a single instrument platform, supporting WR-10 (75–110 GHz) waveguide-to-coaxial transitions via optional harmonic mixers.
- High-Fidelity Receiver Architecture: Dual-channel, phase-coherent receivers with 30 MHz instantaneous IF bandwidth and <0.0005° rms phase noise (1 GHz carrier, 10 kHz offset), enabling high-resolution spectral and modulation-domain analysis.
- Advanced Calibration & De-embedding: Integrated Auto Fixture Removal (AFR) algorithm compliant with IEEE 1698-2018, supporting open-short-load (OSL), TRL, LRM, and user-defined fixture models; eliminates near-end and far-end crosstalk without custom calibration standards.
- Multifunction Measurement Suite: 21 built-in application modules—including THD analysis under true differential excitation, mixer/converter scalar and vector measurements (RF/LO/IF parametric sweeps), gain compression (AM-AM/AM-PM), noise figure (Y-factor and cold-source methods), and signal integrity metrics (TDR/TDT, impedance profiling).
- Intuitive Human-Machine Interface: 15.6-inch industrial-grade capacitive touchscreen with multi-finger gesture support; real-time parameter synchronization across up to 16 traces; SCPI command logging and script generation for automated test sequence development.
- Robust Data Integrity Framework: Built-in audit trail, electronic signature support, and configurable user access levels aligned with FDA 21 CFR Part 11 requirements for regulated industries.
Sample Compatibility & Compliance
The 3674P accommodates a broad range of DUT topologies—from bare die and wafer-level devices (via probe station integration) to packaged RFICs, antenna arrays, high-speed PCBs, and mmWave front-end modules. Its modular port architecture supports direct coaxial connection (3.5 mm, 2.92 mm, 2.4 mm, and 1.85 mm interfaces), as well as external harmonic mixers for extension beyond 110 GHz. All measurement modes comply with international standards including IEEE Std 1785.1-2019 (THD measurement), IEC 62037-4 (passive component characterization), and ASTM D5573 (dielectric material permittivity extraction). Calibration traceability follows ISO/IEC 17025 guidelines, with NIST-traceable reference standards available upon request.
Software & Data Management
Powered by Auniontech’s VNAware™ firmware platform, the 3674P provides native support for industry-standard data formats (Touchstone v2.0, CSV, HDF5) and seamless integration with MATLAB®, Python (via PyVISA), and LabVIEW™. The embedded software includes full GLP/GMP compliance features: secure user authentication (LDAP/Active Directory), immutable measurement logs with timestamped operator ID, version-controlled calibration database, and automatic report generation (PDF/HTML) with embedded uncertainty budgets. Scripting capabilities include XML-based measurement configuration import/export, batch processing of multi-sweep datasets, and API-driven control of external instruments (e.g., bias tees, temperature chambers) via LAN or GPIB.
Applications
- Millimeter-wave IC and MMIC characterization (GaAs, GaN, SiGe, InP)
- On-wafer probing of RF transistors and passive structures (TRL/LRM de-embedding)
- 5G NR FR2 (24.25–52.6 GHz) and 6G sub-THz (100+ GHz) component verification
- Differential amplifier linearity assessment (THD, IMD3, ACPR, EVM)
- Antenna pattern and efficiency measurement (via gated time-domain analysis)
- High-speed serial link channel modeling (S-parameter-based IBIS-AMI simulation)
- Material property extraction (complex permittivity/permeability via transmission/reflection methods)
- EMI/EMC pre-compliance testing (harmonic and spurious emission mapping)
FAQ
What calibration kits are supported for the 3674P?
The instrument natively supports industry-standard mechanical calibration kits (Keysight, Maury, Weinschel) and allows user-defined kit definitions with full error model parameterization (directivity, source match, load match, isolation, frequency-dependent offset delays).
Can the 3674P perform noise figure measurements without an external noise source?
Yes—using its internal calibrated noise diode and Y-factor method, the 3674P provides fully automated noise figure and gain measurements from 10 MHz to 110 GHz, with uncertainty budgets traceable to NIST SRM 2511.
Is pulse S-parameter measurement compatible with active device biasing?
Yes—the 3674P integrates DC bias tees on all ports (optionally) and supports synchronized pulsed RF excitation with adjustable pulse width (10 ns–100 ms), duty cycle, and delay relative to external trigger inputs.
Does the Auto Fixture Removal function require physical calibration standards?
No—AFR uses only raw S-parameter data acquired through the fixture and applies mathematical de-embedding based on measured or modeled fixture scattering parameters; no additional calibration substrates or TRL lines are required.
How is firmware and software updated?
Updates are delivered via encrypted USB drive or secure HTTPS download; each release includes full version history, safety-critical change log, and compatibility matrix for legacy measurement configurations.
