KA SERIES | RF ABSORBERS
Thin, flexible RF absorber solutions from 27.0 to 40.0 GHz.
KA Series Overview
Our KA Series is a high-frequency RF absorber material engineered for RFI mitigation in the 27.0 to 40.0 GHz range. Composed of iron-loaded silicone, it delivers precise attenuation of millimeter-wave signals where control of stray emissions and dielectric loading is essential.
Designed for the most demanding commercial applications, the KA Series supports next-generation 5G FR2 modules, high-resolution radar, and compact mmWave antennas. It is particularly effective in reducing reflection and coupling in tightly packed electronic assemblies where multiple high-frequency components operate in close proximity.
The KA Series is also used to suppress harmonics, eliminate cavity resonances, and maintain performance in dense RF environments such as wearable sensors, smart infrastructure nodes, and test fixtures for high-frequency validation. Available with optional PSA and customizable thicknesses, it integrates cleanly into high-density designs without compromising system layout or thermal flow.
Key Features
Applications
Common Frequencies
KA Series Overview
Our KA Series is a high-frequency RF absorber material engineered for RFI mitigation in the 27.0 to 40.0 GHz range. Composed of iron-loaded silicone, it delivers precise attenuation of millimeter-wave signals where control of stray emissions and dielectric loading is essential.
Designed for the most demanding commercial applications, the KA Series supports next-generation 5G FR2 modules, high-resolution radar, and compact mmWave antennas. It is particularly effective in reducing reflection and coupling in tightly packed electronic assemblies where multiple high-frequency components operate in close proximity.
The KA Series is also used to suppress harmonics, eliminate cavity resonances, and maintain performance in dense RF environments such as wearable sensors, smart infrastructure nodes, and test fixtures for high-frequency validation. Available with optional PSA and customizable thicknesses, it integrates cleanly into high-density designs without compromising system layout or thermal flow.
Key Features
- Frequency Range: 27.0 to 40.0 GHz
- Material Composition: Iron-loaded silicone-based elastomer
- Standard Thicknesses: 0.037″ (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 FR2 Modules: Mitigates interference in 28 GHz and 39 GHz signal paths
- Automotive Radar: Optimizes clarity in short-range and cross-traffic detection systems
- Wearable Sensors: Prevents signal leakage in compact, multi-antenna devices
- mmWave Interconnects: Reduces coupling in chip-to-chip and board-level communication links
- Optical Modules: Reduces emissions and coupling in 25–100G+ optical transceiver and PAM4 driver circuits
Common Frequencies
- 28.0–29.5 GHz: 5G FR2 (mmWave), satellite uplink
- 30.0–31.0 GHz: High-bandwidth fixed microwave services
- 33.0–36.0 GHz: Short-range automotive radar, perimeter sensors
- 37.0–39.5 GHz: 5G licensed bands, dense wireless backhaul
- 38.5–40.0 GHz: mmWave links, radar altimeters, scientific systems
