Antenna Through-Hole Layout for Slim Directional Beam Devices
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Solution Overview
Problem
The challenge is to enhance the radiation performance of electronic devices with antenna arrays while minimizing their size, as the conventional approach of increasing the interval between antenna elements to improve gain results in a thicker device, making it difficult to achieve a slim design.
Innovation Solution
The proposed solution involves an electronic device with a conductive lateral member featuring through-holes that have a larger interval on the outer surface than the antenna elements' interval, allowing for directional beam radiation without compromising the slim form factor, by adjusting the through-hole structure to maintain radiation performance even with reduced antenna element spacing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the interval between antenna elements is increased to improve radiation performance and gain, then the radiation performance is improved, but the device thickness increases making it difficult to achieve a slim design
Solution Approach 1:
The patent transitions from a conventional perpendicular mounting arrangement to an inclined mounting arrangement, changing the spatial dimension of antenna element placement. By inclining the antenna elements at a specific angle relative to the lateral member, the radiation beam can be directed outward through the through-holes without requiring increased vertical spacing, thus maintaining slim device profile while improving radiation performance
Solution Approach 2:
The patent applies different interval configurations to different surfaces: the first interval between through-holes on the inner surface matches the antenna element spacing, while the second interval between through-holes on the outer surface is larger. This local differentiation allows optimized radiation performance at the radiation interface without compromising the overall compact structure
2Length of moving object
If the interval between through-holes is decreased to match reduced antenna element spacing for a slim device, then the device becomes slimmer, but the radiation performance deteriorates
Solution Approach 1:
The patent creates a non-uniform through-hole interval configuration where the second interval on the outer surface is deliberately made larger than the first interval on the inner surface. This local quality enhancement at the radiation interface compensates for the reduced overall spacing, maintaining radiation performance while enabling a slimmer device form factor
Solution Approach 2:
By introducing an inclined mounting angle, the patent effectively utilizes the lateral dimension to compensate for reduced vertical spacing. The inclined orientation allows the radiation beam to traverse a longer path through the lateral member, achieving adequate radiation performance even with smaller through-hole intervals
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 maintains or improves radiation performance by allowing the device to remain slim, as the increased interval between through-holes on the outer surface compensates for the reduced interval between antenna elements, thereby enhancing the device's aesthetic and functional capabilities.
Implementation Method 1
an antenna structure including an antenna disposed in an inner space of the housing and including a substrate, and a plurality of antenna elements disposed at a first interval at the substrate... configured to transmit and/or receive a radio signal in a specified frequency band through the antenna structure
Data Source
AI summary
According to various embodiments, an electronic device includes: a housing including a lateral member including a conductive member including an inner surface and an outer surface facing the inner surface, an antenna structure disposed in an inner space of the housing and including a substrate, and a plurality of antenna elements disposed at a first interval at the substrate, a plurality of through-holes penetrating the inner surface to at least a part of the outer surface and corresponding to the plurality of antenna elements, and a wireless communication circuit disposed in the inner space and configured to transmit or receive a radio signal in a specified frequency band through the antenna structure, wherein first opening portions of the plurality of through-holes formed in the inner surface are disposed at the first interval, and second opening portions of the plurality of through-holes formed in the outer surface are disposed at a second interval greater than the first interval.