Keysight Pushes mmWave Boundaries with New Frequency Extenders and Calibration Kit

Keysight Technologies has unveiled two new millimeter-wave frequency extender modules, the NA5305A (up to 170 GHz) and NA5307A (up to 250 GHz), alongside the 85065A Precision Calibration Kit (0.5 mm), expanding the reach of its PNA and PNA-X Vector Network Analyzers. When paired with the N5292A Test Set Controller, these additions enable fully calibrated, single-sweep S-parameter measurements from 100 kHz to 250 GHz, offering aerospace engineers a streamlined path to sub-terahertz characterization.

For existing users of Keysight’s 110 GHz and 120 GHz VNAs, the upgrade path is refreshingly straightforward, preserving prior investments while unlocking new capabilities in high-frequency validation.

Accelerating Aerospace Component Characterization

The new accessories are designed to simplify test setups and reduce design verification cycles for a wide range of components, including optical RF drivers, transimpedance amplifiers (TIAs), PCBs, cables, and passive devices. In aerospace contexts, where signal integrity and electromagnetic resilience are mission-critical, the ability to characterize components across such a broad frequency range is increasingly essential.

As aerospace platforms integrate AI-driven data links and explore 1.6 Tb/s and 3.2 Tb/s throughput, the demand for precise, broadband measurements at mmWave and sub-THz frequencies is surging. Keysight’s solution addresses this need head-on, offering engineers the tools to validate next-generation semiconductors and high-speed interconnects with confidence.

Technical Highlights for High-Stakes Testing

Among the standout capabilities:

• A system dynamic range of 105 dB at 170 GHz, supporting lossy passive components, high-rejection filters, and active device testing under varied power conditions.
• Differential measurement support for validating high-speed interconnects and differential active devices, crucial for aerospace-grade signal integrity.
• Insight into amplifier behavior with output power up to 0 dBm at 170 GHz and –5 dBm at 220 GHz, enabling deeper analysis of active component performance.

These features are particularly relevant for aerospace labs working on phased arrays, low-observable platforms, and satellite payloads, where high-frequency fidelity directly impacts mission success.

Building a Complete Sub-THz Ecosystem

Keysight’s rollout is bolstered by strategic partnerships with leading component providers. FormFactor Inc. and MPI Corp. have contributed advanced RF probe technologies, including FormFactor’s InfinityXF™ 250 GHz probe series and MPI’s TITAN™ probe platform, both engineered for precision and repeatability in on-wafer testing.

Spinner GmbH has developed ruggedized coaxial adapters and board-mount connectors supporting up to 167 GHz, while Junkosha Inc. has introduced high-performance 0.5-mm test cables to round out the ecosystem. Together, these components form a comprehensive setup for sub-THz signal measurement, tailored to the demands of aerospace-grade reliability and modularity.

Industry Voices on the Collaboration

Jens Klattenhoff of FormFactor emphasized the time-saving potential of the integrated solution, citing its ability to deliver accurate data across a wide range of RF applications. Dr. Stojan Kanev of MPI highlighted the robustness and reconfigurability of the joint platform, noting its value in protecting sensitive system components during high-frequency testing.

Joe Rickert of Keysight underscored the strategic intent behind the launch, framing it as a response to the evolving needs of engineers developing high-speed network components and advanced semiconductors. The combination of dynamic range, output power, and a complete coaxial ecosystem, he said, offers a “high-confidence path” for high-frequency measurements.

Implications for Aerospace Innovation

As aerospace R&D continues to push into sub-THz territory, whether for satellite communications, radar imaging, or secure data links, Keysight’s latest offerings provide a timely and practical solution. By enabling precise, repeatable measurements at frequencies once considered exotic, the company is helping engineers bridge the gap between simulation and real-world performance.