Folded Portable Device Antenna Keep-Out Aperture
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Solution Overview
Problem
Portable computing devices with integrated antennas face interference issues when folded, as the metal base chassis can obstruct the radiation pattern of the antennas, preventing effective wireless communication in the folded position.
Innovation Solution
The metal base chassis is designed with keep out apertures at the distal end, axially displaced from the antenna positions, ensuring that no metal extends into the minimum clearance region, allowing uninterrupted electromagnetic signal propagation even when the device is folded.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the portable computing device is folded with the display unit adjacent to the base unit, then the device achieves a compact form factor, but the metal base chassis obstructs the radiation pattern of the antennas and prevents effective wireless communication
Solution Approach 1:
The metal base chassis is segmented by introducing keep out apertures that divide the continuous metal structure into separate regions, creating clearance zones that allow antenna radiation patterns to propagate without obstruction while maintaining the compact folded form factor
Solution Approach 2:
The keep out apertures create localized non-metallic regions within the metal base chassis specifically positioned to clear the antenna radiation paths, allowing the rest of the metal chassis to maintain its structural integrity and compactness while enabling wireless communication in the folded position
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 continuous wireless communication in the folded position by preventing metal interference with the antennas, supporting wireless docking and maintaining communication functionality.
Implementation Method 1
one or more radiating elements for one or more antennas... enabling the one or more radiating elements to radiate when the portable computing device is in the folded position
Data Source
AI summary
A portable computing device includes a display unit and a base unit coupled via a hinge such that a surface of the display unit is parallel to a surface of the display unit when the portable computing device is manipulated into a folded position. The display unit includes a display panel and a radiating element of an antenna, the radiating element disposed at an end of the display unit that is distal to the hinge. The base unit includes a metal base chassis, the metal base chassis defining a keep out aperture at a distal end of the base unit that is substantially devoid of metal material from the metal base chassis. The keep out aperture is axially displaced from a position of the radiating element when the portable computing device is manipulated into the folded position.