Dielectric Waveguide Connector with Integrated Antenna

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Solution Overview

Problem

There is a need for reliable and easy-to-handle connectors that effectively couple RF plastic waveguides to antennas in modern communication systems using millimeter waves, which require efficient signal transmission with low signal loss and high signal-to-noise ratio, especially in applications like the automotive sector.

Innovation Solution

A connector system that includes a housing with a receptacle for the dielectric waveguide and an integrated or coupled antenna, which provides electromagnetic coupling with shielding and stiffeners for improved mechanical stability and signal integrity, allowing for efficient transmission and reception of RF signals.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If the antenna is placed close to the dielectric waveguide, then signal loss is reduced and signal-to-noise ratio is improved, but mechanical stability and shielding become more difficult to achieve

Engineering Contradiction:
Improvesignal lossVSAvoidmechanical stability
Core Design Contradiction:
Loss of energyVSStability of the object's composition

Solution Approach 1:

The connector housing integrates multiple functions: it provides mechanical support, electromagnetic shielding, and structural stability while simultaneously holding the antenna in close proximity to the waveguide. This merging of functions resolves the contradiction by achieving both low signal loss and mechanical stability through a unified structure.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The connector employs composite construction with conductive shielding materials and rigid structural components combined in a single housing. This allows the housing to simultaneously provide electromagnetic shielding for low signal loss and mechanical rigidity for stability, resolving the contradiction between these two requirements.

Inventive Principle:
Principle #40Composite materials

2Reliability

If shielding is added to reduce radiation leakage, then signal integrity is improved, but device complexity increases

Engineering Contradiction:
Improvesignal integrityVSAvoidconnector structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The shielding is integrated into the connector housing itself rather than being a separate component. This merging of shielding functionality into the existing housing structure improves signal integrity while avoiding the additional complexity that would result from separate shielding components.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The connector housing serves multiple functions simultaneously: mechanical support, electromagnetic shielding, and antenna positioning. This multi-functionality approach improves signal integrity through integrated shielding without increasing device complexity, as the same structure performs multiple roles.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Stability of the object's composition

If stiffeners are added to improve mechanical stability, then connector reliability is improved, but manufacturing complexity increases

Engineering Contradiction:
Improvemechanical stabilityVSAvoidconnector fabrication
Core Design Contradiction:
Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The housing geometry itself is designed with integrated stiffening features through parameter optimization of the molding process. By changing the geometric parameters of the housing during design, mechanical stability is achieved without adding separate stiffener components, thus avoiding increased manufacturing complexity.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The mechanical strengthening features are merged into the housing structure during the molding process. This integration allows the housing to achieve the required mechanical stability through its own geometry rather than requiring additional stiffener components, thereby maintaining ease of manufacture.

Inventive Principle:
Principle #5Merging (Combining)

4Ease of operation

If the connector design is simplified for ease of operation, then ease of operation is improved, but shielding effectiveness and mechanical stability may be compromised

Engineering Contradiction:
Improveconnector handlingVSAvoidradiation leakage
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The connector housing integrates shielding, mechanical support, and simple insertion features into a single unified structure. This merging allows the connector to maintain shielding effectiveness and mechanical stability while preserving ease of operation, as all functions are achieved through the basic housing design rather than complex assemblies.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The housing serves multiple functions simultaneously: it provides electromagnetic shielding, mechanical stability, and simple insertion/removal operation. This multi-functionality approach ensures that shielding effectiveness is maintained while the connector remains easy to operate, without requiring separate components for each function.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

The connector system ensures low signal loss and high signal-to-noise ratio by maintaining proximity between the antenna and dielectric waveguide, while shielding and stiffeners enhance mechanical stability and reduce radiation leakage, facilitating reliable communication links in various applications.

Implementation Method 1

an antenna coupled to the connector housing and electromagnetically coupled to the dielectric waveguide when inserted in the opening of the connector housing

Methodology Applied
Scientific EffectElectromagnetic coupling: Electromagnetic Induction

Implementation Method 2

configured to radiate an electric RF signal, as electromagnetic signal, towards the end-portion of the dielectric waveguide

Methodology Applied
Scientific EffectElectromagnetic radiation: Electromagnetic Induction

Data Source

PatentUS10601127B2Connector for dielectric waveguides
Publication Date: 2020.03.24 INFINEON TECHNOLOGIES AG
  • US10601127B2 patent drawing
  • US10601127B2 patent drawing
  • US10601127B2 patent drawing

AI summary

Embodiments described herein relate to a connector for a dielectric waveguide. In accordance with one embodiment, the connector includes a connector housing that forms a receptacle operably receiving the dielectric waveguide through an opening in the housing. Furthermore, the connector includes an antenna coupled to the connector housing and electromagnetically coupled to the dielectric waveguide when inserted in the opening of the connector housing.