Antenna Array Dielectric Conductor Signal Radiation Control

Solution Overview

Problem

In small-sized electronic devices, the proximity of antenna arrays to other components can distort signal radiation patterns, leading to reduced signal transmission/reception performance and the creation of null regions where signals are not radiated.

Innovation Solution

The use of a dielectric substance and a conductor in communication devices positioned between the antenna array and other components, such as a display, to redirect and strengthen signal radiation in specific directions, improving transmission/reception performance and preventing null regions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the antenna array is positioned close to other components (display, PCB) to reduce device size, then device compactness is improved, but signal radiation pattern distortion occurs and transmission/reception performance deteriorates

Engineering Contradiction:

Improvedevice sizeVSAvoidsignal transmission/reception performance

Core Design Contradiction:

Volume of moving objectVSReliability

Solution Approach 1:

A dielectric member is introduced as an intermediary substance between the antenna array and the display/PCB. This dielectric member has a different dielectric constant than air, which modifies the electromagnetic field distribution and prevents the display/PCB from distorting the antenna's radiation pattern. The dielectric member acts as a buffer that maintains signal integrity while allowing compact device design.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The dielectric constant of the medium surrounding the antenna array is changed by introducing a dielectric member with specific dielectric properties. This parameter change alters the electromagnetic wave propagation characteristics, preventing signal distortion and maintaining radiation performance in the compact device configuration.

Inventive Principle:

Principle #35Parameter changes

2Productivity

If the antenna array radiates signal in a specific direction, then directional communication efficiency is improved, but other components (display, PCB) distort the radiation direction and create null regions

Engineering Contradiction:

Improvecommunication efficiencyVSAvoidsignal coverage uniformity

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The dielectric member serves as a mediator that protects the directional radiation pattern from distortion by other components. It maintains the intended signal propagation direction while preventing the creation of null regions, ensuring both communication efficiency and uniform signal coverage.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Reliability

If a dielectric substance and conductor are added to redirect and strengthen signal radiation, then transmission/reception performance is improved, but device complexity increases

Engineering Contradiction:

Improvesignal transmission/reception performanceVSAvoidantenna structure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

A dielectric member is introduced as an intermediary substance between the antenna array and the display/PCB. This dielectric member has a different dielectric constant than air, which modifies the electromagnetic field distribution and prevents the display/PCB from distorting the antenna's radiation pattern. The dielectric member acts as a buffer that maintains signal integrity while allowing compact device design.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The dielectric constant of the medium surrounding the antenna array is changed by introducing a dielectric member with specific dielectric properties. This parameter change alters the electromagnetic wave propagation characteristics, preventing signal distortion and maintaining radiation performance in the compact device configuration.

Inventive Principle:

Principle #35Parameter changes

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 configuration enhances signal transmission/reception performance by redirecting signals to maintain strength and prevent null regions, ensuring effective signal radiation in specific directions.

Implementation Method 1

a dielectric substance positioned on a first surface of the antenna array

Methodology Applied

Scientific EffectDielectric: Dielectric

Implementation Method 2

a conductor positioned on a second surface of the antenna array

Methodology Applied

Scientific EffectElectrical Conduction: Conduction (electrical)

Data Source

PatentUS11424535B2Electronic device for including antenna array

Publication Date: 2022.08.23 SAMSUNG ELECTRONICS CO LTD

AI summary

An electronic device is provided. The electronic device includes a cover glass, a rear cover which faces away from the cover glass, and a plurality of communication devices that are interposed between the cover glass and the rear cover. Each of the plurality of communication devices comprises a printed circuit board (PCB), an antenna array positioned at the PCB, a dielectric substance positioned on one surface of the antenna array, a conductor positioned on an opposite surface of the antenna array, and a communication circuit electrically connected with the antenna array. The communication circuit is configured to feed the antenna array and transmit/receive a signal in a specified frequency band based on an electrical path formed through the antenna array.