Flexible Sheet Antenna Layout for Narrow-Border Display Bezels

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Solution Overview

Problem

Existing antenna systems in information handling systems occupy significant space within the display chassis, limiting the ability to accommodate additional components and increasing the thickness of the device.

Innovation Solution

Implementing a flexible sheet antenna wrapped around an antenna holder, which is secured using interfacing hook structures, allowing it to be placed in a recessed area of the display chassis, reducing its footprint and enabling thinner designs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If a traditional antenna system is used in the display chassis, then wireless communication functionality is achieved, but the chassis thickness increases and space for additional components is reduced

Engineering Contradiction:

Improvespace occupied by antennaVSAvoidwireless communication functionality

Core Design Contradiction:

Volume of moving objectVSReliability

Solution Approach 1:

The flexible sheet antenna is wrapped around an antenna holder, creating a nested configuration where the antenna is contained within the holder structure. This nesting allows the antenna to be placed in recessed areas of the display chassis, minimizing the space it occupies while maintaining wireless communication functionality.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The antenna is transitioned from a planar or three-dimensional structure to a wrapped configuration around a holder, utilizing the third dimension (wrapping around the holder) to reduce the antenna's footprint in the chassis. This dimensional change allows the antenna to fit into previously unused recessed spaces.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Length of stationary object

If antenna space is reduced to enable thinner designs, then chassis thickness is reduced, but antenna performance may be compromised

Engineering Contradiction:

Improvechassis thicknessVSAvoidantenna performance

Core Design Contradiction:

Length of stationary objectVSReliability

Solution Approach 1:

The antenna is constructed as a flexible sheet that can be wrapped around the antenna holder. This flexible sheet configuration allows the antenna to conform to the holder's shape and fit into recessed areas, reducing chassis thickness while maintaining the antenna's functional surface area and performance characteristics.

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

By nesting the flexible sheet antenna within the antenna holder structure, the antenna achieves an compact form factor that reduces overall chassis thickness. The holder provides structural support while the wrapped antenna maintains its radiating surface area, preserving performance despite reduced thickness.

Inventive Principle:

Principle #7Nested doll (Nesting)

Data Source

PatentUS12355136B2System and method for an embedded flexible sheet antenna for narrow border display

Publication Date: 2025.07.08 DELL PROD LP

AI summary

An information handling system may include a processor, a memory, a power management unit, an antenna controller to provide instructions to a radio to cause a flexible sheet antenna to transceive wirelessly with a network, where the flexible sheet antenna has an antenna structure formed on a flexible sheet circuit, and an antenna holder around which the flexible sheet antenna is wrapped, wherein the flexible sheet antenna and antenna holder are placed within an edge cavity portion of a display chassis sharing the edge cavity with one or more interfacing hook structures used to couple a first chassis cover portion of the display chassis to a second chassis cover portion of the display chassis.