Resilient Antenna Feed Structure for Full-Screen Mobile Devices
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Solution Overview
Problem
The challenge is to enhance antenna performance in mobile devices with limited antenna clearance areas, especially in full-screen designs, where existing solutions face difficulties in maintaining stability and reliability due to sensitive environmental dependencies.
Innovation Solution
The electronic device incorporates a metal frame, a circuit board, and a resilient connection structure that includes a resilient piece extending through the circuit board to electrically couple the antenna module with the metal frame, improving radiation performance and reducing assembly complexity in constrained spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the antenna clearance area is reduced to increase screen occupation ratio, then the display area is improved, but the antenna performance deteriorates due to environmental sensitivity
Solution Approach 1:
The antenna system is segmented into multiple components: the antenna module on the circuit board, the resilient piece as a flexible connector, and the metal frame contact portion. This segmentation allows the antenna to be fed through the circuit board via the resilient piece, enabling stable electrical connection despite the reduced clearance area and maintaining antenna performance in full-screen designs.
2Reliability
If traditional antenna feed methods are used in small clearance areas, then the antenna performance is maintained, but the assembly complexity increases
Solution Approach 1:
The resilient piece integrates multiple functions into a single component: it serves as both the electrical connector and the mechanical support structure. By combining the feeding function and the positioning function into one resilient piece, the assembly process is simplified while maintaining stable antenna performance in constrained spaces.
Solution Approach 2:
The resilient piece is designed with specific elastic properties and thickness parameters that allow it to deform and fit into the limited clearance area. By changing the physical parameters of the resilient piece (elastic modulus, thickness, length), the system achieves both compact assembly and stable electrical connection for the antenna.
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 enhances antenna radiation performance and simplifies assembly while maintaining stability, even in small clearance areas, by effectively utilizing the metal frame as antenna resonating elements and reducing the impact of environmental factors.
Implementation Method 1
the first resilient piece extends through the circuit board, and the second end of the first resilient piece is electrically coupled with the antenna module
Implementation Method 2
The first connection structure includes a first resilient piece, which has a first end and a second end opposite to the first end
Data Source
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AI summary
An electronic device is provided. The electronic device includes a metal frame (1), a circuit board (2), a first connection structure (3), and an antenna module (4). The metal frame is provided with a first contact portion (B1) extending outwardly from an inner surface of the metal frame. The first connection structure includes a first resilient piece (T1), the first resilient piece has a first end and a second end opposite to the first end, the first end of the first resilient piece is electrically coupled with the first contact portion via abutting against the first contact portion. The antenna module disposed on the circuit board is electrically coupled with the second end of the first resilient piece extending through the circuit board, and is electrically coupled with the metal frame via the first resilient piece, such that the metal frame is operable to be antenna resonating elements of the antenna module.