PMF Interposer Shielding for Stable High-Rate Microwave Links

The patent implements a nested structure where the plastic waveguide core is surrounded by a dielectric cladding layer, which in turn is enclosed by a metallic shield. This multi-layer nesting approach confines electromagnetic waves within the core while preventing leakage, thus maintaining ease of manufacture with plastic materials while significantly improving reliability through the added shielding and cladding layers.

The patent employs composite material construction by combining plastic (for the waveguide core), dielectric materials (for the cladding layer), and metallic materials (for the shield). This composite approach leverages the advantages of each material: plastic provides ease of manufacture and low cost, dielectric material provides field confinement, and metal provides shielding against wave leakage, thereby resolving the contradiction between ease of manufacture and reliability.

The nested structure with dielectric cladding and metallic shield provides mechanical reinforcement to the plastic core. The surrounding layers act as protective shells that enhance the overall structural stability of the waveguide assembly, allowing the use of cost-effective plastic materials while achieving the mechanical stability required for practical applications.

By combining plastic with dielectric and metallic materials in a composite structure, the patent achieves a balance between cost and mechanical stability. The plastic provides cost-effectiveness and ease of manufacture, while the dielectric and metallic layers contribute to mechanical strength and structural stability, resolving the contradiction between manufacturing cost and mechanical stability.