Overview of HexPly Multilayer Foam
Hexcel's HexPly Multilayer foam offers a comprehensive solution for broadband RF absorption needs ranging from 500 MHz to 40 GHz. This innovative product is designed to control surface currents effectively with a wide spectrum of applications. The Multilayer foam is a lightweight, flexible open-cell material that incorporates stepped carbon loads to meet high or low loss requirements. It is available in sheet form, making it easy to cut and shape as needed.
Key Features and Benefits
The HexPly Multilayer foam provides exceptional broadband absorption capabilities with reflection losses of up to -20dB. It is flexible, lightweight, and can be customized with conductive ground planes for added functionality. The product is versatile, with applications including crosstalk reduction, antenna shrouding, and shadowing for RCS measurements and anechoic chambers. Additionally, the foam can be treated with elastomer coatings to resist various substances such as jet fuel, hydraulic fuel, gasoline, and water.
Working Principle and Effectiveness
The Multilayer foam operates on the impedance matching principle, where different loss tangent layers are laminated together to create an electrically tapered absorber. By loading each layer with predetermined loss tangents, the foam achieves excellent reflection loss characteristics. The ability to customize layer configurations allows the product to meet specific customer requirements effectively.
Performance and Specifications
Hexcel offers a range of ML series numbers within the Multilayer foam product line, each catering to different frequency ranges and thicknesses. For example, the ML-75 Series provides a reflection loss of ≤-17 dB from 3.5 GHz to 18 GHz, with a thickness of 1.125" and a weight of 1.5 lbs. These specifications ensure that customers can choose the right product variant to meet their absorption needs accurately.
Resources and Support
For more in-depth information on HexPly Multilayer foam, Hexcel provides resources such as datasheets, brochures, and product selector guides. Customers can request sample materials through the Engineering Survival Kit to explore the product firsthand. Additionally, Hexcel's commitment to sustainability and innovation ensures that the Multilayer foam is not only technologically advanced but also environmentally conscious.