Foldable Metal Frame Antenna Structure for Signal Radiation
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Solution Overview
Problem
The miniaturization of electronic devices limits internal space for antennas, leading to deteriorated radiating performance due to metal frames and the need for multiple antennas or complex antenna forms to support diverse frequency bands.
Innovation Solution
A foldable electronic device design with a housing structure that aligns non-conductive members on exterior edges to improve antenna radiation performance by allowing metal portions to function as antennas, connected to communication circuitry and a ground unit, enhancing radiation efficiency across various frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an antenna is positioned inside an electronic device with a metal frame housing, then the device structure is compact and strong, but the radiating performance of the antenna is deteriorated due to signal distortion and blocking by the metal frame
Solution Approach 1:
The patent converts the harmful effect of the metal frame (which blocks and distorts antenna signals) into a beneficial feature by using the metal frame itself as the antenna radiator. The housing structure is designed with conductive metal portions that serve dual purposes: providing structural strength and acting as the radiating element for wireless communication, thereby eliminating signal blocking while maintaining device compactness.
Solution Approach 2:
The metal frame of the housing is designed to perform multiple functions simultaneously: it provides structural support and protection for the device while also serving as the antenna for wireless signal transmission and reception. This multi-functional design eliminates the need for separate internal antennas and reduces signal interference from additional metallic components.
2Volume of moving object
If the internal space of the housing is limited due to miniaturization, then the device size is reduced, but the radiating performance is further deteriorated
Solution Approach 1:
The housing structure is designed so that the metal frame serves dual purposes: providing structural support for the miniaturized device and functioning as the antenna radiator. This eliminates the need for additional internal space for separate antennas, allowing compact device design while maintaining adequate radiating performance.
Solution Approach 2:
The patent merges the housing structure with the antenna function by making the metal frame itself the radiating element. This combination eliminates the need for separate antenna components that would require additional internal space, thereby enabling device miniaturization without compromising radiating performance.
3Adaptability or versatility
If multiple antennas or complicated antenna forms are arranged to support diversified frequency bands, then frequency band coverage is improved, but the internal space requirement increases and device complexity increases
Solution Approach 1:
The patent achieves support for diversified frequency bands by changing the parameters of the metal frame antenna, such as its length, width, and geometric configuration. By adjusting these dimensional parameters, the antenna can resonate at different frequencies, enabling broad frequency band coverage with a single simplified structure rather than multiple complex antennas.
Solution Approach 2:
The metal frame antenna is designed to perform multiple frequency bands with a single unified structure. Through careful design of the frame's geometry and dimensions, it can simultaneously or alternatively support various frequency ranges, eliminating the need for multiple separate antennas and reducing overall 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
The solution significantly improves antenna radiation efficiency, particularly in frequency bands where previous designs suffered from poor performance, by optimizing the alignment and configuration of non-conductive and conductive elements in the foldable device's housing.
Implementation Method 1
At least one metal portion of the two metal portions of the first edge portion is electrically connected to communication circuitry such that a radio frequency communication signal is transmitted or received via the at least one metal portion of the first edge portion
Data Source
AI summary
An electronic device is provided. The electronic device includes a housing and a connection part. The housing includes a first housing portion that includes a first side face, and a second housing portion that includes a second side face. The connection part connects the first housing portion and the second housing portion. A first conductive member extends along at least a portion of the first side face, a first non-conductive member is disposed on the first side face, a second conductive member extends along at least a portion of the second side face, a second non-conductive member is disposed on the second side face, and when the second housing portion faces the first housing portion, the first non-conductive member and the second non-conductive member are substantially aligned.