Dielectric Waveguide

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This patent discloses a novel dielectric waveguide design where the fiber core is formed by two partially overlapping, essentially round fiber cores instead of a single fiber, creating a distinctive double-core structure. The configuration is optimized for the transmission of linearly polarized electromagnetic waves, especially in the millimeter-wave range (e.g., W-band, 75–110 GHz). It reduces dielectric transmission losses by relocating low-loss materials away from areas of highest field intensity, while additional layers such as spacers, shield foils, and protective sheaths further minimize interference and environmental effects.

Use CasesContent extracted from patent full text and abstract with AI.

• High-frequency signal transmission in automotive radar systems, particularly for autonomous vehicles
• Broadband millimeter-wave communications and data networks (W-band, D-band, etc.)
• Aerospace or aviation communication and sensing systems
• Industrial automation requiring robust, low-loss high-frequency links
• Advanced sensor arrays or imaging systems operating in the millimeter-wave spectrum
• Wireless backhaul and fronthaul infrastructure in next-generation telecommunication networks

BenefitsContent extracted from patent full text and abstract with AI.

• Lower transmission loss at millimeter-wave frequencies compared to conventional metal or single-core dielectric designs
• Ability to efficiently and robustly transport linearly polarized signals, with simplified coupling and decoupling to external systems
• Improved immunity to environmental influences and electromagnetic interference due to sheath and shielding layers
• Lightweight and cost-effective since no conductive materials are required for guiding the wave
• More flexible and easier to manufacture, especially in long lengths, thanks to the double-core structure and extrusion compatibility
• Versatile for use in extreme or sensitive environments (e.g., automotive, aerospace) due to enhanced mechanical and dielectric properties

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Inventors & Applicants

Patent Abstract

Disclosed is a dielectric waveguide. A fibre core of the dielectric waveguide is formed by a first fibre core and a second fibre core. The first fibre core and the second fibre core have an intersection in the cross-section of the dielectric waveguide.