Medium Power Terminations
Mi-Wave’s 581 Series Terminations are designed with standard waveguide flanges for use from 12.4 to 220 GHz. Each unit consists of a short length of
waveguide and an integral matched terminal load. Individual resistive dielectric loads are tapered to precise wedge configurations for maximum effective energy absorption. The gradual taper provides a low VSWR over the full waveguide bandwidth.
The 581 Series Terminations are used in experimental and developmental test sets where a low VSWR wave-guide load is essential for valid and accurate measurements. These terminations will ensure precise measurement of the VSWR resulting from the insertion of various waveguide components into a system.
Note: for higher power requirements 582 Series and up to 100 watts CW, please consult Mi-Wave for technical specifications.
Note: Our website contains just a few types of Terminations we build. Consult with us for your specific needs.
Model | Band | Frequency Low (GHz) | Frequency High (GHz) | Power Handling (CW) | VSWR | RF Ports | LINK |
---|---|---|---|---|---|---|---|
581X/UG39 | X-Band | 8.2 | 12.4 | 10 W | 1.10:1 | WR-90 Waveguide, UG-339/U Flange | |
581A/599 | Ka-Band | 26.5 | 40 | 7 W | 1.10:1 | WR-28 Waveguide, UG-599/U Flange | |
581B/383 | Q-Band | 33 | 50 | 5 W | 1.10:1 | WR-22 Waveguide, UG-383/U Flange | |
581U/383 | U-Band | 40 | 60 | 3 W | 1.10:1 | WR-19 Waveguide, UG-383/U Flange | |
581V/385 | V-Band | 50 | 75 | 2 W | 1.10:1 | WR-15 Waveguide, UG-385/U Flange | |
581E/387 | E-Band | 60 | 90 | 1.8 | 1.10:1 | WR-12 Waveguide, UG-387/U Flange | |
581W/387 | W-Band | 75 | 110 | 1.2 W | 1.10:1 | WR-10 Waveguide, UG-387/U Flange | |
581F/387 | F-Band | 90 | 140 | 0.4 W | 1.10:1 | WR-8 Waveguide, UG-387/U Flange | |
581D/387 | D-Band | 110 | 170 | 0.3 W | 1.15 | WR-6 Waveguide with UG-387/U-M Flange | |
581G/387 | G-Band | 140 | 220 | 0.2 W | 1.15:1 | WR-5 Waveguide, UG-387/U-M Flange | |
581H/387 | H-Band | 170 | 260 | 0.2 W | 1.15:1 | WR-4 Waveguide, UG-387/U Flange |
Note: Our website contains just a few types of Terminations we build. Consult with us for your specific needs.

Sales & Quoting
As the manufacturing source, we have top sales engineers ready to answer all your questions and quote you on product needs. You’ll find our prices are some of the best since we manufacture all our millimeter wave products in house.
Have a custom job or unique need? No problem!
Contact us so we can work on solutions to meet your needs.
2007 Gandy Blvd N
Suite 1310
St. Petersburg, FL 33702
Tel: 727-563-0034
Fax: 727-563-0031
Email: [email protected]