KU SERIES | RF ABSORBERS

Thin, flexible RF absorber solutions from 12.0 – 18.0 GHz

KU Series sheets from $159.00

0.045″ thick | With or without PSA

RF Absorber Sample

Maximum attenuation RF absorber for high frequency applications

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KU Series Overview

The KU Series is a high-frequency RF absorber material designed for RFI mitigation in the 12.0 to 18.0 GHz range. Built on an iron-loaded silicone base, this material offers reliable absorption performance for upper microwave band systems where minimizing stray reflections and noise coupling is vital.

Commonly deployed in automotive radar systems (such as lane-keeping and adaptive cruise control), satellite communication modules, and commercial microwave antennas, the KU Series helps improve isolation, reduce interference, and protect critical signal paths. It is also ideal for lining cavity walls and shielding compact RF assemblies used in test instruments and phased array platforms.

Engineers specify the KU Series when space constraints demand thin, flexible absorber layers with predictable high-frequency performance. Standard thicknesses, PSA options, and custom die-cutting make it easy to integrate into production lines and retrofit applications alike.

Key Features

  • Frequency Range: 12.0 to 18.0 GHz

    Material Composition: Iron-loaded silicone-based elastomer

    Standard Thicknesses: 0.045″ (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

  • Automotive Radar: Enhances signal fidelity in 77 GHz ADAS subsystems (with harmonic absorption at lower bands)

    Microwave Antennas: Reduces back-lobe reflections and near-field RFI

    Satellite Terminals: Minimizes signal distortion in compact Ka/KU-band uplinks and receivers

    Phased Arrays: Dampens parasitic radiation in multi-antenna assemblies

    RF Test Equipment: Controls reflections in precision measurement systems operating in the upper microwave range

Common Frequencies

  • 12.5–13.25 GHz – Terrestrial broadcast links, point-to-point microwave

    14.0–14.5 GHz – Ku-band uplink (satellite internet, VSAT)

    15.7–16.2 GHz – Passive sensors, remote sensing applications

    17.3–17.8 GHz – Satellite broadcast and data relay systems

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