Transparent Conductor Film

3M™ transparent conductor film is a thin, transparent conductive film equipped with a copper grid as the conductive layer. With high light transmittance, low sheet resistance, and excellent flexibility, this film has been demonstrated in inconspicuous sub-6 GHz antenna products for indoor and outdoor use. This conductive transparent film from 3M helps enable high-power designs with low surface electrical resistance. Its flexible PET substrate allows for application over surfaces or lamination to a rigid support, such as a window. This 450 mm x 450 mm unpatterned master sheet is great for prototyping antenna designs and RF shielding, but it can also be used as a post-patterned sheet format by applying a customer-supplied antenna pattern design.

Features

• High transparency (>80% open area)
• Proprietary copper grid conductive layer
• Implemented in low-profile antennas achieving VSWR, PIM, and gain requirements that are typical for non-transparent antennas
• Flexible PET substrate
• High efficiency: <0.05 Ω per square sheet resistance
• High power capability: up to 50 W
• Excellent EMI shielding performance
• Grid performance similar to solid copper
• High adhesion allows for a small bend radius
• Darkening treatment for all copper surfaces
• Available as a post-patterned sheet (or roll) format using a customer-supplied antenna pattern design and available as pre-cut laminated assemblies designed to customer specifications

Applications

• For use in indoor and outdoor inconspicuous sub-6 GHz antenna designs
• Antenna power capabilities up to 50 W (continuous), dependent upon antenna design
• 5G transparent antenna for vehicles, trains, building windows, street luminaries, and many others
• 5G IoT transparent antenna
• EMI/EMC applications such as RF shielding for windows

Close-up of mesh

Very good flexibility