Electromagnetic Windows

Electromagnetic Windows to protect and conceal antennas

With proven reliability and low lifecycle costs, custom-designed SHEERGARD® electromagnetic windows protect and conceal sensitive radar and communication installations. Suitable for sensitive, high-security environments and system compatible for commercial use.

SHEERGARD® electromagnetic windows are virtually transparent to electromagnetic energy in the frequency ranges found in contemporary systems. Easily integrated into existing substructures, design flexibility allows us to partner with you to deliver customized solutions to fit your application.

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Product Details

SHEERGARD® electromagnetic windows have several benefits which deliver excellent performance and lifetime value. Custom design engineered by a dedicated team of structural, mechanical and PE licensed engineers, their woven substrate fabric with applied coatings provides high tensile strength and tear resistance. SHEERGARD materials also have a vast temperature range (typically from -60°F (-51°C) to +500°F (260°C)) and are Teflon coated, enabling lifelong hydrophobic performance and ensuring you never need to reapply a surface finish. Unsurpassed RF performance (featuring dielectric constants of less than 2.8) results in minimal energy scattering into the antenna sidelobe and mitigates against cross-polarization and noise temperature. Crucially, Sheergard has faced the most robust environmental testing. It offers environmental protection in even the most extreme conditions (including winds over 210mph (340km/h). It is also resistant to hail, offers low thermal conductivity and good RF performance at high incidence angles (up to 70 degrees) Consequently, these products combine technical excellence with inherent durability.

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Saint-Gobain Composite Solutions is a long-trusted partner for creating highly specialized, technology-driven material solutions that deliver extraordinary performance across a spectrum of demanding settings. Through collaboration with our customers, we co-develop versatile materials and real application tests to ensure that you have the best possible solution for your application. We help create innovative materials that provide protection, easy release, insulation, and friction control. And we seek to collaborate in making it even more possible.

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Rigorous testing standards

Saint-Gobain Composite Solutions develops custom application testing based on each of our partner’s product uses in order to create the best possible solution. Some tests that are included but are not limited to environmental, durability, and reliability testing to give you peace of mind making sure that products work in the hardest environments. Our testing begins during the co-development process to develop relevant tests and gather data that allows us to create market-ready solutions quickly.


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Talk to our team of engineers to start working on your solution today!