Mobile Terminal Antenna Integration via Side Case Nesting
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Solution Overview
Problem
In mobile terminals, it is challenging to simultaneously mount antennas and user input units in limited spaces without degrading wireless communication performance or affecting the device's usability and design.
Innovation Solution
A mobile terminal design incorporating a side case with conductive members and a non-conductive mold, where the force sensor is positioned to overlap the antenna, allowing for wireless communication without requiring changes to the button position, and the user input unit is indicated by a non-conductive mold, ensuring no additional elements that could degrade the design or performance are needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the antenna is arranged on the outer side of the mobile terminal to increase radio signal transmission/reception rate, then wireless communication performance is improved, but it becomes difficult to dispose the antenna together with a user input unit or interface on the outer side
Solution Approach 1:
The patent transitions the antenna arrangement from a two-dimensional surface placement on the outer side to a three-dimensional integration within the side case structure. The antenna is embedded in the side case, utilizing the internal volume and creating a stepped configuration with conductive members at different heights, thereby resolving the spatial conflict with user input units while maintaining wireless communication performance
Solution Approach 2:
The antenna is nested within the side case structure, specifically integrated into the conductive members that form part of the side case assembly. This nesting allows the antenna to coexist with user input units and interfaces on the outer side, as the antenna occupies the internal space rather than competing for external surface area
2Reliability
If multiple antennas are mounted in the mobile terminal to meet LTE standards, then communication performance is improved, but the constraints on antenna arrangement increase due to interference from metal or electronic components
Solution Approach 1:
The side case is segmented into multiple conductive members arranged in a stepped configuration, with each conductive member potentially hosting antenna elements. This segmentation allows multiple antennas to be distributed across different spatial zones within the side case, reducing mutual interference and enabling flexible arrangement to meet LTE standards
Solution Approach 2:
Different regions of the side case are designed with different properties - conductive members provide electromagnetic shielding and structural support in specific locations, while non-conductive mold regions allow antenna element placement. This local differentiation of material properties enables optimized antenna arrangement for multiple frequency bands and communication standards
Data Source
AI summary
Disclosed herein is a mobile terminal capable of indicating the position of a force sensor arranged inside a side case using the shape of a non-conductive mold disposed between conductive members to sense pressure. For the mobile terminal, a user input unit and an antenna may be arranged to overlap each other, and a bump and a recess may be formed using a non-conductive mold that is easy to process. Accordingly, uniformity of appearance may be maintained without forming a bump and a recess on the conductive member.