Antenna Positioning Structure for Notebook PC Cable Orientation

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Solution Overview

Problem

Existing antenna units in electronic devices, such as notebook PCs, face issues with variations in antenna characteristics due to the positioning of power feeders, which can adversely affect the electric-wave resonating section when the power feeder is extended along the antenna ground section.

Innovation Solution

A positioning structure using a resin projection with a recess is integrated into the antenna unit to maintain a constant distance between the power feeder and the antenna unit, preventing interference and stabilizing antenna characteristics by ensuring the power feeder is securely positioned without interfering with the antenna wire.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the power feeder is extended along the antenna ground section to provide connectivity, then the electrical connection is achieved, but the characteristics of the electric-wave resonating section are adversely affected

Engineering Contradiction:
Improveelectrical connectionVSAvoidantenna characteristics
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The patent introduces a positioning structure as an intermediary element between the power feeder and the antenna ground section. This positioning structure maintains a specific distance relationship, allowing the power feeder to be electrically connected while preventing it from interfering with the electric-wave resonating section, thus resolving the contradiction between connection reliability and antenna characteristic precision

Inventive Principle:
Principle #24Intermediary (Mediator)

2Volume of moving object

If the power feeder is positioned close to the antenna unit for compact design, then space is saved, but variations in antenna characteristics occur due to positioning deviations

Engineering Contradiction:
Improvespace utilizationVSAvoidantenna characteristics
Core Design Contradiction:
Volume of moving objectVSStability of the object's composition

Solution Approach 1:

The positioning structure is designed in advance with predetermined distance specifications. By establishing the correct distance relationship between the power feeder and antenna unit before final assembly, the patent prevents positioning deviations that would cause antenna characteristic variations, while still allowing compact space utilization

Inventive Principle:
Principle #10Preliminary action

3Ease of manufacture

If the power feeder is extended along the antenna ground section to simplify routing, then cable routing is simplified, but interference with the electric-wave resonating section occurs

Engineering Contradiction:
Improvecable routingVSAvoidinterference with electric-wave resonating section
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The positioning structure serves as a mediator that allows the power feeder to follow a simplified routing path along the antenna ground section while maintaining a safe distance from the electric-wave resonating section. This intermediary element enables easy cable routing without causing harmful interference to the antenna's electromagnetic resonance

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS8274434B2Electronic apparatus with a positioning structure for cable orientation
Publication Date: 2012.09.25 DYNABOOK INC
  • US8274434B2 patent drawing
  • US8274434B2 patent drawing
  • US8274434B2 patent drawing

AI summary

According to one embodiment, an antenna unit provided on the inner surface of the upper peripheral portion of the display housing of a notebook PC includes a projection that positions a power feeder connected to an electronic component adjacent to the antenna unit such that the power feeder extends at a constant distance from the core member of the antenna unit. The projection projects from the core member at a position at which it does not interfere with an antenna wire, and includes a recess that receives the power feeder.