RF Waveguide Termination, WR-28, PBR-320, 15 W, 26.3-40.0 GHz (Ka Band)

DLW28-P320-15 is a WR-28 RF waveguide termination designed for operation from 26.3 to 40.0 GHz, with 15 W average input power at 25°C. It is intended to absorb RF power on unused ports, line ends, and secondary branches in microwave and millimeter-wave assemblies, helping reduce reflections and maintain controlled RF behavior.

This termination features an IEC PBR-320 flange and is manufactured in aluminum with a grey painted finish. That construction makes it suitable for compact RF systems where mechanical accuracy and consistent waveguide interfacing are important.

Key features

• Waveguide size: WR-28 (R320)
• Frequency range: 26.3-40.0 GHz
• Average power: 15 W @ 25°C
• Max VSWR: 1.2
• Flange type: IEC PBR-320
• Material: aluminum
• Finish: grey painted
• Operating temperature: -40°C to +70°C

Role in the RF chain

A 15 W WR-28 waveguide termination is typically used to terminate unused ports, test ports, and auxiliary branches in RF modules, subsystems, and laboratory setups. Appropriate termination helps limit return reflections and supports more stable RF performance across the signal path.

Why choose this WR-28 termination

• Compatible with WR-28 waveguide systems
• Standard PBR-320 mechanical interface
• 15 W average power handling
• Aluminum construction for compact integration
• Operating range from -40°C to +70°C

DLW28-P320-15 is a strong fit for technical B2B catalogs when a WR-28 waveguide termination is needed for RF absorption across 26.3 to 40.0 GHz with a grooved PBR-320 flange interface.