Side Surface Metal Radiator for Antenna Clearance
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Solution Overview
Problem
The development of built-in antennas in electronic devices has not made significant breakthroughs, and the radiation performance is often compromised due to decreased clearance areas, resulting in unsatisfactory performance.
Innovation Solution
An electronic device design that incorporates a first slot along its side surface with a metal portion acting as a radiator for the antenna, extending the current path to improve radiation performance by using the side surface metal portion instead of a traditional built-in radiator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional built-in radiator is used inside the electronic device, then the device structure is compact, but the radiation performance deteriorates due to limited clearance area
Solution Approach 1:
The patent transitions the radiator from a two-dimensional planar structure inside the device to a three-dimensional structure extending along the side surface of the device. The metal portion forms a radiator that utilizes the lateral dimension of the device, effectively increasing the available space for radiation without increasing the device's footprint area.
Solution Approach 2:
The radiator is extracted from the internal space of the device and repositioned to the side surface. By removing the radiator from the constrained internal environment and placing it on the external side surface, the patent eliminates the clearance area limitation while maintaining device compactness.
2Reliability
If the clearance area is increased to improve antenna radiation performance, then the radiation efficiency improves, but the device volume increases
Solution Approach 1:
The patent utilizes the side surface dimension of the device to extend the radiator structure. By arranging the metal portion along the side surface rather than expanding the internal volume, the patent achieves increased current path length and improved radiation efficiency without increasing the overall device volume.
3Reliability
If the current path length of the radiator is increased to improve radiation performance, then the radiation efficiency improves, but the device structure becomes more complex
Solution Approach 1:
The patent integrates the radiator function with the side surface structure of the device. The metal portion is combined with the housing or frame structure, merging the antenna radiator with the device's structural components. This integration achieves extended current path length without adding separate complex structures.
Solution Approach 2:
The side surface metal portion serves dual functions: it acts as both a structural component of the device housing and as the radiator for the antenna. This multi-functionality eliminates the need for separate dedicated radiator structures, reducing overall device complexity while achieving improved radiation performance.
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 enhances the radiation performance of the antenna by increasing the current path length, allowing for improved antenna efficiency even in devices with limited clearance areas, as demonstrated by increased radiation efficiency and reduced return loss across various frequency bands.
Implementation Method 1
a first metal portion disposed on the side surface corresponding to the first slot being used as a radiator of a first antenna of the electronic device
Data Source
AI summary
The present disclosure discloses an electronic device having a first slot disposed along a side surface of the electronic device; and a first metal portion disposed on the side surface corresponding to the first slot being used as a radiator of a first antenna of the electronic device.