Tunable Distributed Radiating Element for Thin Metal Chassis

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Solution Overview

Problem

The challenge is to design a distributed, tunable antenna system for information handling systems that can efficiently operate in thin, streamlined metal chassis without increasing thickness or requiring additional components, while addressing signal interference and aesthetic concerns.

Innovation Solution

A distributed, tunable antenna system is implemented, featuring a radiating element capacitively coupled with an antenna and a tuner module electrically coupled to both, allowing for antenna tuning and efficient operation across various frequency bands without the need for additional components or plastic inserts, by integrating the tuner and radiating element within the metal chassis.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a distributed, tunable antenna system is implemented in thin metal chassis, then wireless communication efficiency across multiple frequency bands is improved, but device thickness and component count increase

Engineering Contradiction:
Improvefrequency band operationVSAvoiddevice thickness
Core Design Contradiction:
Adaptability or versatilityVSLength of moving object

Solution Approach 1:

The patent combines the antenna and tuner module into a single integrated antenna system. The tuner module is positioned adjacent to the antenna element and electrically coupled to it, allowing both components to work together as one unified structure rather than separate elements, thereby reducing overall device thickness while maintaining multi-frequency band operation capability

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The antenna system is designed to operate across multiple frequency bands (including 5G networks) through the tuner module that can adjust resonance frequencies. This multi-functional capability allows a single antenna structure to replace what would traditionally require multiple separate antennas, reducing the overall device thickness while maintaining versatility

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If additional components are added for antenna tuning, then wireless link performance is improved, but manufacturing complexity and cost increase

Engineering Contradiction:
Improvewireless link performanceVSAvoidcomponent count
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The tuner module is integrated directly with the antenna element in a compact arrangement where the tuner is positioned adjacent to and electrically coupled with the antenna. This merging of components reduces the total component count and simplifies manufacturing while maintaining the ability to tune across multiple frequency bands for reliable wireless communication

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If plastic inserts or additional structures are used for antenna integration, then antenna performance is improved, but aesthetic integrity and streamlined design are compromised

Engineering Contradiction:
Improveantenna performanceVSAvoidaesthetic integrity
Core Design Contradiction:
ReliabilityVSShape

Solution Approach 1:

The antenna and tuner module are integrated into a single compact unit that can be embedded within the metal chassis without requiring visible plastic inserts or additional external structures. The tuner module is positioned adjacent to the antenna element in a way that maintains the streamlined, aesthetic design of the device while ensuring optimal antenna performance through proper electrical coupling

Inventive Principle:
Principle #5Merging (Combining)

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 solution enables efficient wireless communication across multiple frequency bands, including 5G networks, while maintaining a slim profile and aesthetic integrity, by dynamically tuning the antenna system to resonate at specific frequencies, thus enhancing wireless link performance and reducing manufacturing complexity.

Implementation Method 1

a radiating element, the radiating element being capacitively coupled with the antenna

Methodology Applied
Scientific EffectCapacitive coupling: Capacitance

Implementation Method 2

a tuner module electrically coupled to the antenna and the radiating element, the tuner module tuning the antenna and the radiating element

Methodology Applied
Scientific EffectResonance: Resonance

Data Source

PatentUS11843185B2Distributed, tunable radiating element
Publication Date: 2023.12.12 DELL PROD LP
  • US11843185B2 patent drawing
  • US11843185B2 patent drawing
  • US11843185B2 patent drawing

AI summary

An information handling system (IHS) includes an antenna system. The antenna system includes an antenna; a radiating element, the radiating element being capacitively coupled with the antenna; and, a tuner module electrically coupled to the antenna and the radiating element, the tuner module tuning the antenna and the radiating element.