3D Antenna Bracket Layout for Space-Limited Multi-Antenna Tablets
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Solution Overview
Problem
The limited peripheral mechanism spaces in tablet PC type electronic devices pose a challenge in accommodating multi-antenna communication systems, particularly in terms of cost reduction and detachable antennae.
Innovation Solution
The electronic device incorporates a housing with a metal support plate, a three-dimensional antenna bracket, and a side button circuit board, where the spaces between the side buttons and the housing form a metal cavity that resonates to generate a target antenna frequency band and radiation pattern, enabling a multi-antenna design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional antenna designs are used in tablet PCs, then antenna functionality can be achieved, but the limited peripheral mechanism spaces cannot accommodate multi-antenna communication systems
Solution Approach 1:
The patent transitions from traditional planar antenna layouts to a three-dimensional antenna bracket structure with multiple layers and spatial dimensions. The antenna bracket extends in multiple directions (first direction, second direction, third direction) to create a volumetric antenna system that utilizes the Z-axis dimension, thereby achieving multi-antenna functionality without increasing the footprint area on the tablet surface.
Solution Approach 2:
The antenna bracket is nested within the housing structure of the tablet PC, utilizing the internal cavity space between the housing and the metal support plate. This nesting approach allows the antenna system to be embedded within the existing device boundaries, maximizing space utilization without requiring additional external perimeter space.
2Adaptability or versatility
If more antennae are added to meet multi-antenna requirements, then communication system performance improves, but the device complexity and manufacturing cost increase
Solution Approach 1:
The antenna bracket serves multiple functions simultaneously: it provides structural support for multiple antennas, acts as a mounting framework, defines the spatial relationships between different antenna elements, and integrates with the housing structure. This multi-functionality reduces the need for separate components and simplifies the overall device complexity despite incorporating multiple antennas.
Solution Approach 2:
The patent combines the antenna support structure with the housing structure by positioning the antenna bracket within the housing cavity and securing it to the metal support plate. This merging of structural elements eliminates the need for separate antenna mounting brackets or additional fastening mechanisms, thereby reducing manufacturing steps and device complexity.
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 design effectively breaks through space limitations, allowing for the integration of a multi-antenna communication system while maintaining a compact form factor, thus meeting the requirements for cost reduction and detachable antennae.
Implementation Method 1
the three-dimensional antenna bracket and the metal support plate form a radiation cavity to resonate to generate a target antenna frequency band and an available radiation pattern
Data Source
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AI summary
An electronic device includes a housing, a metal support plate, a three-dimensional antenna bracket and a side button circuit board. The housing includes an upper housing body and a lower housing body. The metal support plate is arranged in the housing. The three-dimensional antenna bracket is arranged in a first space between the metal support plate and the lower housing body. The side button circuit board is arranged in a second space between the metal support plate and the upper housing body. The area of the three-dimensional antenna bracket and the area of the side button circuit board on the metal support plate overlap with each other. Thus, the electronic device can meet the design requirement for a plurality of antennae, and the three-dimensional antenna bracket and the metal support plate form a radiation cavity to resonate to generate a target antenna frequency band and an available radiation pattern.