DLW22-U383-50 is a WR-22 RF waveguide termination designed for millimeter-wave operation from 32.9 to 50.1 GHz, with 50 W average input power at 25°C. It is intended to absorb RF power on unused ports, line ends, and secondary branches in mmWave assemblies, helping reduce reflections and maintain controlled RF behavior.

This termination features a UG-383/U flange, a copper waveguide section with gold-plated finish, and an aluminum heat sink with black painted finish. That construction makes it suitable for higher-power millimeter-wave systems where thermal handling, mechanical accuracy, and stable electrical performance all matter.

Key features

Waveguide size: WR-22 (R400)
Frequency range: 32.9-50.1 GHz
Average power: 50 W @ 25°C
Max VSWR: 1.2
Flange type: UG-383/U
Waveguide material: copper
Waveguide finish: gold plated
Heat sink material: aluminum
Heat sink finish: black painted
Net weight: approx. 195 g
Operating temperature: -40°C to +70°C

Role in the RF chain

A 50 W WR-22 waveguide termination is typically used to terminate unused ports, test ports, and auxiliary branches in millimeter-wave modules, subsystems, and laboratory setups. In market usage, WR-22 terminations in Q-Band are commonly framed around high-power test and system applications, which supports this commercial positioning without extending beyond the datasheet facts. :contentReference[oaicite:3]{index=3}

Why choose this WR-22 termination

Compatible with WR-22 millimeter-wave systems
Standard UG-383/U mechanical interface
50 W average power handling
Copper RF section with aluminum heat sink
Operating range from -40°C to +70°C

DLW22-U383-50 is a strong fit for technical B2B catalogs when a WR-22 waveguide termination is needed for RF absorption across 32.9 to 50.1 GHz with more substantial power-handling capability than low-power variants.