Dielectric Waveguide Bundle Materials for Low-Crosstalk mmWave Links

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional interconnect technologies, such as baseband copper cables or optical communication components, fail to achieve low latency, low cost, and low power for high data-rate communication, particularly in applications like deep learning, autonomous vehicles, and virtual/augmented reality.

Innovation Solution

The development of dielectric waveguides, waveguide bundles, waveguide connectors, and transmission line structures that enable high data-rate millimeter-wave communication in a dense, low-latency, and power-efficient manner, without the need for metal claddings that cause signal attenuation and dispersion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional interconnect technologies (copper cables or optical components) are used, then communication infrastructure is established, but latency, cost, and power consumption remain high for high data-rate communication

Engineering Contradiction:

Improvedata rateVSAvoidlatency

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The patent replaces conventional electrical signaling over copper wiring with electromagnetic signaling over millimeter-wave dielectric waveguides. This substitution enables higher data rates (beyond 100 gigabits per second) and lower latency by utilizing millimeter-wave frequencies and dielectric waveguide structures that support high-frequency signal propagation with reduced transmission delays compared to baseband copper cables.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the operating frequency parameter to millimeter-wave range and modifies the transmission medium parameters by using dielectric waveguides with specific core and cladding materials having different dielectric constants. These parameter changes enable high data-rate communication with low latency by optimizing signal propagation characteristics at millimeter-wave frequencies.

Inventive Principle:

Principle #35Parameter changes

2Strength

If metal claddings are used in waveguides, then structural support is provided, but signal attenuation and dispersion increase

Engineering Contradiction:

Improvestructural supportVSAvoidsignal attenuation

Core Design Contradiction:

StrengthVSLoss of energy

Solution Approach 1:

The patent extracts and removes the metal cladding layer from the waveguide structure, transitioning to an all-dielectric construction. This extraction eliminates the harmful interaction between metal and high-frequency millimeter-wave signals that causes signal attenuation and dispersion, while the dielectric waveguide maintains sufficient structural integrity through its dielectric material properties and geometric design.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces expensive metal cladding materials with dielectric materials that are more suitable for millimeter-wave applications. The dielectric waveguide structure, while having different mechanical properties, provides the necessary guidance function without the signal loss penalties of metal, effectively substituting a material better suited to the operational requirements.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

3Reliability

If dielectric waveguides with different core and cladding materials are used, then bandwidth density and signal integrity are improved, but manufacturing complexity increases

Engineering Contradiction:

Improvesignal integrityVSAvoidmanufacturing complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies local quality by using different dielectric materials with different dielectric constants for the core and cladding regions of the waveguide. This differentiation creates the necessary refractive index contrast to confine and guide millimeter-wave signals within the core, improving signal integrity and reducing crosstalk between adjacent waveguides in a bundle, while allowing each region to be optimized for its specific function.

Inventive Principle:

Principle #3Local quality

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

These components achieve adequate bandwidth density, reduce crosstalk, and minimize signal integrity issues, supporting millimeter-wave communication at high data rates (beyond 100 gigabits per second) with reduced complexity and cost.

Implementation Method 1

A dielectric waveguide may include a core material and a cladding material, wherein the core material and the cladding material have different dielectric constants

Methodology Applied

Scientific EffectDielectric confinement: Dielectric

Implementation Method 2

components for millimeter-wave communication... enable high data-rate millimeter-wave communication

Methodology Applied

Scientific EffectElectromagnetic wave propagation: Electromagnetic Induction

Data Source

PatentUS20240429588A1Millimeter-wave dielectric waveguide bundle including first and second adjacent dielectric waveguides having different core and/or cladding materials

Publication Date: 2024.12.26 INTEL CORP

AI summary

Disclosed herein are components for millimeter-wave communication, as well as related methods and systems. In one aspect, a microelectronic support for millimeter-wave communication includes a millimeter-wave communication transmission line, wherein the transmission line includes a trace in a metal layer, wherein the trace is electrically coupled to a via by a via pad in the metal layer; and a ground plane in the metal layer, wherein one or more metal portions contact the via pad and the ground plane.