CB SERIES | RF ABSORBERS
Thin, flexible RF absorber solutions from 4.0 to 8.0 GHz.
CB Series Overview
Our CB Series is a cavity resonance RF absorber material designed for RFI mitigation in the 4.0 to 8.0 GHz range. Constructed from iron-loaded silicone rubber, this series is optimized for mid- to upper-microwave band applications where minimizing interference and reducing signal reflections is critical to system reliability.
With excellent magnetic loss characteristics and mechanical flexibility, the CB Series is frequently specified in enterprise networking hardware, automotive radar proximity sensors, high-speed wireless links, and lab test setups. It helps suppress unwanted emissions, improve shielding effectiveness, and maintain signal clarity in compact, complex assemblies.
The CB Series is also commonly used to line cavity walls, damp reflective surfaces near antennas, and reduce coupling in high-density RF modules. Thickness options are designed for efficient absorption without sacrificing valuable enclosure space, and optional adhesive backing supports rapid integration in manufacturing environments.
Key Features
Applications
Common Frequencies
CB Series Overview
Our CB Series is a cavity resonance RF absorber material designed for RFI mitigation in the 4.0 to 8.0 GHz range. Constructed from iron-loaded silicone rubber, this series is optimized for mid- to upper-microwave band applications where minimizing interference and reducing signal reflections is critical to system reliability.
With excellent magnetic loss characteristics and mechanical flexibility, the CB Series is frequently specified in enterprise networking hardware, automotive radar proximity sensors, high-speed wireless links, and lab test setups. It helps suppress unwanted emissions, improve shielding effectiveness, and maintain signal clarity in compact, complex assemblies.
The CB Series is also commonly used to line cavity walls, damp reflective surfaces near antennas, and reduce coupling in high-density RF modules. Thickness options are designed for efficient absorption without sacrificing valuable enclosure space, and optional adhesive backing supports rapid integration in manufacturing environments.
Key Features
- Frequency Range: 4.0 to 8.0 GHz
- Material Composition: Iron-loaded silicone-based elastomer
- Standard Thicknesses: 0.040″ to 0.100″
- 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
- Wi-Fi 6 Devices: Reduces RFI in routers, repeaters, and mesh systems
- Automotive Radar: Improves sensor accuracy in blind-spot and cross-traffic systems
- High-Speed Wireless Links: Suppresses reflections in 5.8 GHz backhaul and telemetry gear
- Test Equipment: Dampens chamber reflections and isolates components during RF testing
- Compact RF Modules: Mitigates coupling and crosstalk in multi-layer board assemblies
Common Frequencies
- 4.4–5.0 GHz: Military and weather radar (non-defense variants)
- 5.2 / 5.8 GHz: Dual-band Wi-Fi (802.11a/n/ac), industrial radar
- 5.9 GHz: Vehicle-to-vehicle (V2V) communications
- 6.0–7.0 GHz: Commercial telemetry, fixed wireless
- 7.125 GHz: Upper edge of Wi-Fi 6E
