CobaltFx FET-WR15 Frequency Extension Module, V Band

CobaltFx cost-effective millimeter wave frequency extension system allows you to build a scalable and affordable testing solution.

  • Frequency Range: 50-75 GHz
  • Connector Type: Waveguide WR15
  • Attenuator option is available for adjustable output power control: 0-30dB
  • Each frequency extender module includes a Proxi-Flange™

The system can be anchored by your choice of four vector network analyzers:

Total cost of the system depends on selected VNA. The extenders are packaged in small and versatile enclosures that allow for flexible port arrangements. Waveguide ports are manufactured in accordance to the new IEEE 1785-2a standard and ensure industry best alignment and repeatability of connection, allowing for long interval times between calibration.

The system can be used for a variety of applications including antenna range measurements, material characterization, wafer s-parameter measurements, automotive radar & sensor testing, etc.


Users can include an attenuator with their extender purchase for adjustable output power control which is useful for some amplifier and mixer testing applications.


If you want to consult with our engineers about your specific application, please Ask an Engineer.

Every CMT VNA includes an RF measurement module and software application which runs on a Windows PC, laptop, or tablet, connecting to the measurement hardware via USB interface. Software can be installed on multiple computers that share the use of the analyzer measurement module. Test Automation programming in LabView, Python, MATLAB, .NET, etc.


CobaltFx Data Sheet  |  CobaltFx Assembly Guide

STEP Files



S2 & S4 Programming Manual (COM)  |  S2 & S4 Programming Manual (SCPI)  |  S2 Operating Manual


S2 VNA Software  |  S2 Software Release Notes  |  Software/Documentation Page

Testing Automation

Programming Examples  |  Programming Guides  |  S2 LABView Drivers

MSRP $22,750 (Without Adjustable Output Power) - $23,950 (With Adjustable Output Power)
Build Your CobaltFx System Request a Quote Find a Representative Try the CobaltFx Download Demo Software Software/Documentation

Mixer Measurements Demo at IMS 2019

Frequency Extension System Solution - Eravant

Design Trends in Automotive Electronics and Radar Sensors eBook