Display Support Plate Layout for Antenna Radiation Efficiency

Solution Overview

Problem

The support plate in electronic devices can degrade the antenna radiation performance due to its high permittivity or dielectric loss when positioned adjacent to the antenna, leading to reduced efficiency in communication signals.

Innovation Solution

Incorporating a support plate with a first region adjacent to the antenna made of a material with low permittivity and dielectric loss, and a second region made of a different material further away from the antenna, to minimize interference and maintain radiation efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a support plate with high permittivity material is used to provide structural support, then mechanical strength is improved, but antenna radiation performance deteriorates

Engineering Contradiction:

Improvemechanical strengthVSAvoidantenna radiation performance

Core Design Contradiction:

StrengthVSLoss of energy

Solution Approach 1:

The support plate is divided into two distinct regions: a first region adjacent to the antenna made of low permittivity material to minimize interference with radiation, and a second region away from the antenna made of high permittivity material to provide mechanical strength and impact protection. This segmentation allows each region to optimize its function without compromising the other.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different materials with different permittivity characteristics are applied to different spatial locations of the support plate. The first region near the antenna uses material with low permittivity to reduce electromagnetic interference, while the second region uses material with high permittivity for enhanced mechanical protection, creating local optimization of material properties.

Inventive Principle:

Principle #3Local quality

2Strength

If a support plate with high dielectric loss material is used to provide structural support, then mechanical strength is improved, but power loss increases

Engineering Contradiction:

Improvemechanical strengthVSAvoidpower loss

Core Design Contradiction:

StrengthVSLoss of energy

Solution Approach 1:

The support plate is divided into two distinct regions: a first region adjacent to the antenna made of low permittivity material to minimize interference with radiation, and a second region away from the antenna made of high permittivity material to provide mechanical strength and impact protection. This segmentation allows each region to optimize its function without compromising the other.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different materials with different permittivity characteristics are applied to different spatial locations of the support plate. The first region near the antenna uses material with low permittivity to reduce electromagnetic interference, while the second region uses material with high permittivity for enhanced mechanical protection, creating local optimization of material properties.

Inventive Principle:

Principle #3Local quality

3Ease of manufacture

If a uniform material support plate is used to simplify manufacturing, then manufacturing complexity is reduced, but antenna performance varies across different regions

Engineering Contradiction:

Improvemanufacturing simplicityVSAvoidantenna performance consistency

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The support plate is divided into two distinct regions: a first region adjacent to the antenna made of low permittivity material to minimize interference with radiation, and a second region away from the antenna made of high permittivity material to provide mechanical strength and impact protection. This segmentation allows each region to optimize its function without compromising the other.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different materials with different permittivity characteristics are applied to different spatial locations of the support plate. The first region near the antenna uses material with low permittivity to reduce electromagnetic interference, while the second region uses material with high permittivity for enhanced mechanical protection, creating local optimization of material properties.

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

This configuration enhances the antenna's radiation performance by reducing power loss and maintaining signal quality across various frequency bands, thereby improving communication efficiency.

Implementation Method 1

the radiation performance of the antenna including at least a portion of the lateral member may be degraded if the permittivity of a material included in the support plate is high

Methodology Applied

Scientific EffectPermittivity: Dielectric Permittivity

Implementation Method 2

the radiation performance of the antenna including at least a portion of the lateral member may be degraded if the dielectric loss occurring in the support plate is high

Methodology Applied

Scientific EffectDielectric loss: Dielectric

Data Source

PatentUS20250021137A1Display structure and electronic device comprising display structure

Publication Date: 2025.01.16 SAMSUNG ELECTRONICS CO LTD

AI summary

An electronic device is provided. The electronic device includes a display including a display panel, a lateral member which including a conductive material and disposed in a manner that at least a part thereof surrounds the display, a communication module electrically connected to the lateral member to enable the lateral member to function as an antenna, and a support plate disposed below the display panel and including a first region adjacent to the lateral member and a second region excluding the first region, wherein the first and second regions of the support plate comprise different materials.