Sandwich Radomes
SHEERGARD® Sandwich Radomes are rigid, self-supporting structures designed to protect antenna systems while providing outstanding electromagnetic transmission over a relatively narrow band of frequencies.
SHEERGARD’s innovative technology panels incorporate 3-D fibers that pass through the sandwich core, connecting the inner and outer surfaces. The addition of these fibers helps to prevent delamination of the outer structural skins from the center foam core. This retains the structural integrity through the radome life since delamination can substantially reduce the radome’s ability to withstand wind loads.
The panel design incorporates a PTFE outer surface. This provides excellent performance in rain conditions throughout the life of the radome, and eliminates the need for recoating. This dramatically reduces life-cycle costs.
The joints between panels, which can contribute to a substantial part of overall radome signal loss, are designed to provide a minimum profile while efficiently transferring loads. Proprietary joint tuning techniques are then used to optimize the overall radome transmission performance for specific frequency bands.
Sandwich radomes are commonly used in applications up to C band frequencies with specific limited bandwidths.
Export Control:
Export of SHEERGARD Sandwich radomes are covered under EAR99 No License Required. This allows easier export of these systems for applications such as Satcom, Military Radars under USML Category XI and Telemetry/Tracking Systems under USML category XV.
Unsurpassed RF Performance
The primary function of a radome is to protect the enclosed antenna system while having minimal effect on the transmission of the electromagnetic signal.
Structural Modeling
Finite element analysis is applied to a wide range of structures, from simple spheres and electromagnetic windows to custom configurations.
Extreme Environmental Protection
SHEERGARD PTFE coated fabrics have been analyzed and tested for structural application to all environmental conditions.
Proven Reliability
The materials used for radome fabrication are composites consisting of a woven substrate fabric protected with applied coatings, providing tensile strength and tear resistance.
Low Life-Cycle Cost
The PTFE coating of SHEERGARD materials provides superior life-long hydrophobic performance, so no reapplication of surface finish is ever required.
SHEERGARD is a registered trademark of SHEERGARD Composite Solutions.