Antenna Frame Layout for Reducing Display Connection Noise Coupling
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Solution Overview
Problem
High-speed electronic components in electronic devices generate high-frequency noise that interferes with antenna signals, affecting antenna performance due to coupling phenomena when noise frequencies align with communication frequency bands.
Innovation Solution
An electronic device design featuring a middle frame with a connection hole in a specific electromagnetic field weak region, reducing coupling between the antenna and high-frequency noise by positioning the connection structure within a ¼ to ¾ wavelength range from the antenna's reference point, thereby minimizing interference and optimizing antenna performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the connection structure is placed near the antenna to connect the circuit board and display module, then the electrical connection is achieved, but the high-frequency noise from the connection structure couples with the antenna signal, degrading antenna performance
Solution Approach 1:
The patent applies local quality by identifying and utilizing the weak electromagnetic field region (at ¼ to ¾ wavelength from the antenna reference point) specifically for placing the connection hole. This localized placement strategy creates a favorable electromagnetic environment for the connection structure without affecting other areas of the device, thereby reducing noise coupling while maintaining connection functionality.
2Object-affected harmful factors
If the connection hole is positioned in the weak electromagnetic field region (¼ to ¾ wavelength from antenna reference point), then the coupling between antenna and high-frequency noise is reduced, but the positioning precision and layout planning become more complex
Solution Approach 1:
The patent applies preliminary action by pre-calculating and marking the weak electromagnetic field region position (at ¼ to ³⁄⁴ wavelength from the antenna reference point) during the design phase. This allows the connection hole to be precisely positioned in advance, avoiding last-minute adjustments and ensuring optimal placement that minimizes noise coupling while maintaining manufacturing feasibility.
3Ease of operation
If the connection structure passes through the middle frame near the antenna, then the electrical connection between circuit board and display module is established, but the high-frequency noise generated by the connection structure interferes with the antenna signal
Solution Approach 1:
The patent applies the intermediary principle by using the weak electromagnetic field region (at ¼ to ¾ wavelength from the antenna) as a mediator zone for the connection structure. This intermediary placement allows the connection hole to pass through the middle frame and establish electrical connection while being positioned in a region that naturally attenuates electromagnetic coupling, thus reducing noise generation and interference.
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 placement of the connection hole in the weak electromagnetic field region effectively reduces noise coupling, enhancing antenna signal integrity and performance by leveraging the natural distribution of electromagnetic fields within the device.
Implementation Method 1
a weak region of an electromagnetic field emitted by the antenna is located in the first region, and the distribution of the electromagnetic field gradually strengthens and then gradually weakens
Data Source
AI summary
An electronic device to address interference caused to a signal of an antenna due to a coupling phenomenon in an electronic product. The electronic device includes a middle frame, a display module, a circuit board, an antenna, and a connection structure. The antenna includes a reference point, a region on the middle frame that is within a range from a ¼ wavelength to a ¾ wavelength from the reference point is a first region in a length direction of the middle frame, and a connection hole is provided in the first region. For the connection structure, one end of the connection structure is electrically connected to the circuit board, and another end of the connection structure passes through the connection hole and is electrically connected to the display module.