Waveguide Calibration Kit for VNA – Full Band, 18–325 GHz
A waveguide calibration kit is the set of precision standards used to calibrate a vector network analyzer (VNA) before measuring in rectangular waveguide. Mi-Wave’s 780 Series waveguide calibration kits cover 18 to 325 GHz and work with millimeter-wave test heads and modules from Keysight, Anritsu and Rohde & Schwarz. Precision fixed shorts deliver return loss above 40 dB. [Calibration method: SSST or SOLT — confirm with engineering.] These kits provide the Triple Offset Short (SSST) calibration method utilizing offset shorts and fixed precision termination, and are compatible with all major VNA brands including Keysight, Anritsu, and Rohde & Schwarz.
The precision fixed shorts have been selected to provide a high level of return loss >40 dB and fixed short circuits are optimized to 1/8, 1/4, and 3/8 wavelengths with tight tolerances. These kits are provided with one rugged straight waveguide, 1/8. 1/4, 3/8, and reference short circuits precision fixed to load in a foam-lined wooden case.
See how the MIWV Waveguide Calibration Kit Works


Mi-Wave Waveguide Calibration Kit Series
Mi-Wave waveguide calibration kits provide full Short-Open-Load-Thru (SOLT) calibration standards for VNA measurement across 18 GHz to 325 GHz. Each kit is precision-machined to tight tolerances and covers a specific waveguide band, ensuring accurate de-embedding of connector and adapter effects during millimeter wave measurements. Compatible with all major VNA brands including Keysight, Anritsu, and Rohde & Schwarz.
Full-Band Coverage: 18 GHz – 325 GHz
Mi-Wave 780 Series waveguide calibration kits cover 13 frequency bands from K-Band (18–26.5 GHz) through H-Band (170–260 GHz), with each kit matched to its corresponding waveguide size and flange standard — from WR-42 (UG-595/U) at K-Band through WR-5 (UG-387/U-M) at G and H-Band. Every kit delivers VSWR of 1.06:1 and includes 1/8, 1/4, and 3/8 wavelength precision offset short circuits plus a fixed termination load, all supplied in a foam-lined wooden case. Custom band configurations are available — consult Mi-Wave for specific requirements.
Note: Our website contains just a few types of RF power amplifiers we build. Consult with us for your specific needs.
| Model | Band | Frequency Range | VSWR | RF Port | LINK |
|---|---|---|---|---|---|
| 780K/595 | K-Band | 18–26.5 GHz | 1.06:1 | WR-42 Waveguide, UG-595/U Flange | |
| 780(34)/595 | WR-34 | 22–33 GHz | 1.06:1 | WR-34 Waveguide, UG-595/U Flange | |
| 780A/599 | Ka-Band | 26.5–40 GHz | 1.06:1 | WR-28 Waveguide, UG-599/U Flange | |
| 780B/383 | Q-Band | 33–50 GHz | 1.06:1 | WR-22 Waveguide, UG-383/U Flange | |
| 780U/383 | U-Band | 40–60 GHz | 1.06:1 | WR-19 Waveguide, UG-383/U-M Flange | |
| 780V/385 | V-Band | 50–75 GHz | 1.06:1 | WR-15 Waveguide, UG-385/U Flange | |
| 780E/387 | E-Band | 60–90 GHz | 1.06:1 | WR-12 Waveguide, UG-387/U Flange | |
| 780W/387 | W-Band | 75–110 GHz | 1.06:1 | WR-10 Waveguide, UG-387/U-M Flange | |
| 780F/387 | F-Band | 90–140 GHz | 1.06:1 | WR-08 Waveguide, UG-387/U-M Flange | |
| 780D/387 | D-Band | 110–170 GHz | 1.06:1 | WR-06 Waveguide, UG-387/U-M Flange | |
| 780G/387 | G-Band | 140–220 GHz | 1.06:1 | WR-05 Waveguide, UG-387/U-M Flange | |
| 780H/387 | H-Band | 170–260 GHz | 1.06:1 | WR-04 Waveguide, UG-387/U-M Flange |
Note: Our website contains just a few types of RF power amplifiers we build. Consult with us for your specific needs.
Frequently Asked Questions
What is a waveguide calibration kit?
A set of precision standards (shorts, load, straight waveguide section) used to calibrate a VNA so that measurements in waveguide are accurate up to the test-port reference plane.
Which VNAs are Mi-Wave calibration kits compatible with?
Keysight, Anritsu and Rohde & Schwarz VNAs using millimeter-wave test heads or modules from 18 to 325 GHz.
How do I choose the right kit?
Match the kit to the waveguide band of your test head (WR size and frequency range), then confirm the flange type. Use the model finder above.
Applications
- VNA Calibration
- Component Characterisation
- Antenna Measurement
- Production Test







