Foldable Circuit Board Layout Near Segmented Conductive Frame
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Solution Overview
Problem
In electronic devices with conductive frames, the coupling phenomenon between the frame and adjacent electric elements due to insulating materials can alter the resonance frequency, reducing communication signal radiation or reception efficiency.
Innovation Solution
The electronic device incorporates a segmented frame with insulating material and a substrate member that includes spaced-apart parts connected by a bending part, where wires are arranged to avoid passing through areas adjacent to the segmentation parts, mitigating the coupling effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a frame made of conductive material is segmented and electric elements are disposed adjacent to insulating material, then the frame can function as an antenna radiator with designated resonance frequency, but a coupling phenomenon occurs between the frame and electric elements which changes the resonance frequency and reduces radiation or reception efficiency
Solution Approach 1:
The patent extracts the electric element (substrate member with wires) from the harmful proximity to the segmentation part of the frame. By positioning the substrate member away from the segmentation part where insulating material is disposed, the coupling phenomenon between the conductive frame and electric elements is eliminated, thereby maintaining the designated resonance frequency and radiation efficiency of the antenna.
2Volume of moving object
If wires are arranged to pass through areas adjacent to segmentation parts, then space utilization is improved, but coupling phenomenon occurs which alters resonance frequency
Solution Approach 1:
The patent applies local quality by creating a restricted zone around the segmentation part of the frame where insulating material is disposed. Within this local area, wire arrangement is constrained to avoid passing through the restricted zone. This localized restriction prevents coupling phenomenon at the critical segmentation area while allowing flexible wire routing in other areas of the substrate member, thus maintaining both space utilization and resonance frequency accuracy.
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 configuration alleviates the coupling phenomenon, ensuring the frame can radiate or receive communication signals with improved quality by maintaining designated resonance frequencies.
Implementation Method 1
at least a part of the segmented frame may operate as an antenna radiator having a designated resonance frequency
Implementation Method 2
an insulating material having a very low level of conductivity or a low dielectric constant may be disposed between parts of a frame
Data Source
AI summary
An electronic device is provided. The electronic device includes a first mechanical element, a second mechanical element moving with respect to the first mechanical element, a frame including a first frame formed of a conductive material and coupled to the first mechanical element and a second frame formed of a conductive material and coupled to the second mechanical element, a segmentation part formed at the frame to segment each of the first frame and the second frame into a plurality of parts, and a first substrate member which includes a first part and a second part spaced apart from each other, and a first bending part for bendably connecting the first part and the second part and is disposed to move together with at least one of the first mechanical element and the second mechanical element, wherein a plurality of wires arranged at the first substrate member may be arranged not to pass through a first area which is an area of the first bending part of the first substrate member and is adjacent to the segmentation part.