Variable Permittivity Polyrod Antenna for Guided Wave Communication

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Solution Overview

Problem

The increasing demand for higher bandwidth in wireless communication due to ubiquitous smart phones and portable devices poses challenges for existing wireless infrastructure, particularly in providing efficient broadband access and managing disturbances in communication networks.

Innovation Solution

A guided wave communication system utilizing a polyrod antenna with varying permittivity and a waveguide to propagate electromagnetic waves along a transmission medium without requiring an electrical return path, enabling efficient data transmission and network management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If traditional wireless infrastructure is used to provide broadband access, then existing infrastructure can be maintained, but bandwidth capacity is insufficient to address increased demand

Engineering Contradiction:
Improvebandwidth capacityVSAvoiddata transmission efficiency
Core Design Contradiction:
Quantity of substanceVSProductivity

Solution Approach 1:

The patent changes the fundamental parameter of electromagnetic wave propagation by transitioning from conventional antenna radiation to waveguide-mode propagation along a transmission medium. This parameter change enables higher bandwidth capacity and data transmission efficiency by utilizing guided waves that can carry more information with lower loss, directly addressing the insufficiency of traditional wireless infrastructure bandwidth.

Inventive Principle:
Principle #35Parameter changes

2Loss of energy

If conventional antennas are used for electromagnetic wave transmission, then simple structure is maintained, but transmission loss is high and bandwidth is limited

Engineering Contradiction:
Improvetransmission lossVSAvoidbandwidth capacity
Core Design Contradiction:
Loss of energyVSQuantity of substance

Solution Approach 1:

The patent substitutes conventional antenna radiation mechanisms with waveguide-mode propagation along a transmission medium. This substitution replaces the traditional mechanical/electromagnetic radiation process with a guided wave process that confines electromagnetic energy to the transmission medium, significantly reducing transmission loss and enabling higher bandwidth capacity through multiple transmission paths.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If single-path transmission is used, then system complexity is reduced, but transmission reliability is insufficient due to disturbances

Engineering Contradiction:
Improvetransmission reliabilityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the electromagnetic wave transmission into multiple independent paths along the transmission medium. By dividing the transmission into multiple waveguide modes and spatial paths, the system achieves higher reliability through diversity - if one path is disturbed, others can maintain transmission. This segmentation inherently provides redundancy without requiring complex external error correction systems.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent adds spatial and modal dimensions to transmission by utilizing multiple propagation paths along the transmission medium. Instead of single-path transmission, the system employs multiple waveguide modes and spatial configurations, creating additional transmission dimensions that improve reliability through path diversity while managing system complexity through integrated waveguide design.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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

This solution enhances bandwidth capacity and reduces transmission loss by allowing electromagnetic waves to propagate along a single wire transmission medium, supporting multiple transmission paths and enabling efficient data transmission and network management.

Implementation Method 1

A guided wave communication system utilizing a polyrod antenna with varying permittivity and a waveguide to propagate electromagnetic waves along a transmission medium

Methodology Applied
Scientific EffectElectromagnetic wave propagation: Electromagnetic Induction

Implementation Method 2

a waveguide to propagate electromagnetic waves along a transmission medium

Methodology Applied
Scientific EffectWaveguide: Waveguide

Data Source

PatentUS10424845B2Method and apparatus for communication using variable permittivity polyrod antenna
Publication Date: 2019.09.24 AT&T INTELLECTUAL PROPERTY I L P
  • US10424845B2 patent drawing
  • US10424845B2 patent drawing
  • US10424845B2 patent drawing

AI summary

Aspects of the subject disclosure may include, a device with a polyrod antenna having a core, where the core has a first region with a first dielectric constant and a second region with a second dielectric constant, and where the second dielectric constant is higher than the first dielectric constant. The device can include a waveguide coupled with the core, where the waveguide is configured to confine an electromagnetic wave at least in part within the core in the first region. Other embodiments are disclosed.