Antenna Module Shielding Sheet Ground Point

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional antenna structures in portable electronic devices are costly due to the use of high-frequency cables and occupy internal space, leading to signal deterioration and increased production costs.

Innovation Solution

An antenna module featuring a shielding metal sheet with a ground point for electromagnetic interference isolation, and an antenna with a feeding point for radio signal reception and transmission, where the antenna is placed on the metal sheet conforming to the device's shape, reducing cable length and assembly complexity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a high-frequency cable is used to connect the antenna to the circuit board, then signal transmission quality is improved, but production cost increases

Engineering Contradiction:

Improvesignal transmission qualityVSAvoidproduction cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent extracts and eliminates the high-frequency cable from the antenna system by integrating the antenna directly onto the circuit board. The antenna trace is formed as part of the PCB circuit layers, removing the need for separate cable connections while maintaining signal transmission functionality.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent merges the antenna structure with the circuit board by forming the antenna trace using the same PCB manufacturing processes as the circuit traces. This integration combines previously separate components (antenna and circuit board) into a unified structure, reducing assembly steps and cost.

Inventive Principle:

Principle #5Merging (Combining)

2Reliability

If manual wiring and welding operations are performed to connect the antenna, then connection reliability is improved, but labor cost and assembly time increase

Engineering Contradiction:

Improveconnection reliabilityVSAvoidassembly speed

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The antenna structure serves itself by being directly formed on the circuit board through automated PCB manufacturing processes. The antenna trace is created during standard PCB fabrication, eliminating the need for separate manual wiring and welding operations to connect the antenna to the circuit board.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical operations (wiring and welding) with automated PCB manufacturing processes. The antenna trace is formed using standard PCB techniques such as copper etching and lamination, which are highly automated and consistent, replacing labor-intensive manual assembly steps.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Ease of operation

If the antenna is positioned and fixed before connecting signal contacts, then assembly convenience is improved, but production cost increases due to additional fixtures and retainers

Engineering Contradiction:

Improveassembly convenienceVSAvoidproduction cost

Core Design Contradiction:

Ease of operationVSEase of manufacture

Solution Approach 1:

The patent merges the antenna positioning and fixing functions into the circuit board structure itself. The antenna trace is permanently integrated onto the PCB during manufacturing, eliminating the need for separate positioning fixtures and retainers that would be required for modular antenna assemblies.

Inventive Principle:

Principle #5Merging (Combining)

4Adaptability or versatility

If a long wiring path is used for the cable, then antenna positioning flexibility is improved, but signal deterioration increases

Engineering Contradiction:

Improveantenna positioning flexibilityVSAvoidsignal quality

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent removes the cable wiring path entirely by integrating the antenna directly onto the circuit board. This eliminates signal deterioration associated with long cable runs while maintaining antenna positioning flexibility through direct trace routing on the PCB.

Inventive Principle:

Principle #2Taking out (Extraction)

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 design reduces production costs, saves internal space, enhances antenna performance by minimizing signal deterioration, and simplifies the assembly process, resulting in more compact and cost-effective electronic devices.

Implementation Method 1

a shielding metal sheet for isolation of electromagnetic interference

Methodology Applied

Scientific EffectElectromagnetic shielding: Faraday Cage

Data Source

PatentUS8681058B2Antenna module

Publication Date: 2014.03.25 WISTRON CORP

AI summary

An antenna module for an electronic device includes a shielding metal sheet for isolation of electromagnetic interference, and an antenna placed on the shielding metal sheet for radio signal reception and transmission, wherein the shielding metal sheet includes a first ground point working as a ground point of the antenna module and the antenna includes a first feeding point working as a feeding point of the antenna module.