Metal Housing Wireless Device Antenna Socket Interface

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Metallic housings in consumer electronics, such as aluminum alloy, cause signal transmission and reception issues due to shielding effects, preventing wireless signals from penetrating and resulting in faulty wireless communication, while external modules increase device volume.

Innovation Solution

A wireless device design featuring a metal housing with a built-in wireless module and an external antenna coupled via a socket interface, allowing signal transmission and reception without being affected by the shielding effect, utilizing a USB port for connectivity and incorporating RF and DC block circuits for isolation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a metallic housing is used to provide elegance and protection, then the aesthetic appearance and structural strength are improved, but the wireless signal transmission is blocked due to shielding effect

Engineering Contradiction:
Improvehousing strengthVSAvoidwireless signal transmission
Core Design Contradiction:
StrengthVSReliability

Solution Approach 1:

The antenna is extracted from the interior of the metallic housing and positioned externally, coupled to the wireless module via a socket interface on the housing. This separation removes the antenna from the shielding environment while maintaining the intact metallic housing structure for protection and aesthetics.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

A socket interface is introduced as an intermediary component on the housing, enabling signal transmission between the internal wireless module and the external antenna without compromising the metallic housing's shielding properties or structural integrity.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If an external wireless module is used to overcome shielding effect, then the wireless signal transmission is improved, but the device volume increases excessively

Engineering Contradiction:
Improvewireless signal transmissionVSAvoiddevice volume
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

Only the antenna component is extracted and positioned externally, while the wireless module remains integrated within the device housing. This selective extraction minimizes volume increase compared to using a complete external wireless module.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The external antenna is coupled through a universal socket interface that can accommodate different antenna types and configurations, allowing flexibility in antenna design without requiring a dedicated external wireless module housing.

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

Enables normal wireless signal transmission and reception with minimal external volume increase and no additional cost, maintaining a stylish metallic housing while avoiding signal interference.

Implementation Method 1

when the housing 100 is formed by a metallic material (e.g. aluminum alloy or other materials that generate shielding effect), the wireless signals from the antenna 102 cannot penetrate the metal housing due to metal shielding effect

Methodology Applied
Scientific EffectElectromagnetic shielding: Faraday Cage

Data Source

PatentUS9142874B2Wireless device
Publication Date: 2015.09.22 MEDIATEK INC
  • US9142874B2 patent drawing
  • US9142874B2 patent drawing
  • US9142874B2 patent drawing

AI summary

The present invention discloses a wireless device. The wireless device includes a housing, formed by a metal material, a wireless module disposed inside the housing, and an antenna, disposed outside the housing, coupled to the wireless module via a external socket interface disposed on the housing, for transmitting and receiving signals corresponding to the wireless module.