KB SERIES | RF ABSORBERS
Thin, flexible RF absorber solutions from 18.0 to 27.0 GHz.
KB Series Overview
Our KB Series is a millimeter-wave RF absorber engineered for RFI mitigation in the 18.0 to 27.0 GHz frequency range. Constructed from iron-loaded silicone rubber, it delivers dependable absorption for high-frequency applications where system integrity, crosstalk reduction, and precision signal control are critical.
The KB Series is commonly specified in mmWave communication systems, including 5G base stations, radar altimeters, and vehicle-to-everything (V2X) modules. It helps suppress near-field interference, reduce parasitic resonances, and improve signal-to-noise ratios in dense RF environments. The material’s flexibility and range of thicknesses allow it to conform to non-planar geometries, enabling effective cavity fill and isolation even in space-limited enclosures.
Engineers choose the KB Series to support high-frequency subsystem integration without compromising thermal stability or mechanical resilience. Optional adhesive backing and custom die-cut formats simplify deployment at any production volume.
Key Features
Applications
Common Frequencies
KB Series Overview
Our KB Series is a millimeter-wave RF absorber engineered for RFI mitigation in the 18.0 to 27.0 GHz frequency range. Constructed from iron-loaded silicone rubber, it delivers dependable absorption for high-frequency applications where system integrity, crosstalk reduction, and precision signal control are critical.
The KB Series is commonly specified in mmWave communication systems, including 5G base stations, radar altimeters, and vehicle-to-everything (V2X) modules. It helps suppress near-field interference, reduce parasitic resonances, and improve signal-to-noise ratios in dense RF environments. The material’s flexibility and range of thicknesses allow it to conform to non-planar geometries, enabling effective cavity fill and isolation even in space-limited enclosures.
Engineers choose the KB Series to support high-frequency subsystem integration without compromising thermal stability or mechanical resilience. Optional adhesive backing and custom die-cut formats simplify deployment at any production volume.
Key Features
- Frequency Range: 18.0 to 27.0 GHz
- Material Composition: Iron-loaded silicone-based elastomer
- Standard Thicknesses: 0.042″ (custom thicknesses available)
- Adhesive Options: Pressure-sensitive adhesive (PSA), transfer tape
- Operating Temperature: -55°C to +200°C
- Customization: In-house die cutting and assembly services available
Applications
- 5G mmWave Systems: Controls interference in FR2 band antennas and transceivers
- Automotive V2X Modules: Reduces stray radiation in vehicle radar-to-vehicle comms
- Radar Altimeters: Suppresses reflections in high-precision aviation or drone sensors
- Compact RF Enclosures: Maintains signal integrity in tightly packed high-frequency devices
- Operating Temperature: -55°C to +200°C
- Production Test Fixtures: Minimizes noise coupling during final-stage testing and calibration
Common Frequencies
- 18.0–20.2 GHz: Ka-band satellite downlink
- 21.2–23.6 GHz: Fixed wireless access (FWA), remote sensing
- 24.0–24.25 GHz: ISM band (short-range radar, industrial sensing)
- 25.5–27.0 GHz: Early 5G mmWave deployments, Earth observation
