Loop Antenna Metal Plate Winding for Magnetic Flux Emission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
As electronic devices become smaller and more functional, they face challenges in accommodating antennas within limited spaces, and conductive elements often deteriorate the performance of magnetic field communication due to interference.
Innovation Solution
The electronic device incorporates a housing with a conductive coil and metal plate configuration, where the coil winds around a metal plate, and communication circuits generate magnetic fluxes to enhance emission performance, allowing for effective magnetic field communication despite conductive materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the size of electronic devices is reduced and more functions are added, then device functionality increases, but the space available for mounting antennas is reduced
Solution Approach 1:
The patent combines the antenna structure with the metal plate that is already present in the electronic device housing. The conductive coil is positioned to wind around the metal plate, transforming the metal plate into an integral part of the antenna assembly. This merging eliminates the need for separate antenna mounting space while maintaining communication functionality.
Solution Approach 2:
The metal plate serves dual purposes: it acts as both a structural/component element of the electronic device and as a functional element of the antenna system. By making the metal plate serve multiple functions, the patent eliminates the need for dedicated antenna space while preserving device functionality.
2Strength
If conductive elements are used in the electronic device, then device structure and shielding are improved, but the transmitting and receiving performances of the antenna deteriorate
Solution Approach 1:
The patent converts the harmful effect of the metal plate (which normally shields and blocks magnetic fields) into a beneficial effect by using it as the core around which the conductive coil winds. The metal plate becomes part of the antenna structure itself, and the magnetic flux generated by the coil is guided through and around the plate, improving rather than degrading transmission performance.
Solution Approach 2:
The conductive coil acts as an intermediary that generates magnetic flux to overcome the shielding effect of the metal plate. By positioning the coil to wind around the plate and generating controlled magnetic flux, the system mediates between the structural need for metal and the communication need for magnetic field transmission.
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 improves the emission performance of magnetic field signals, enabling efficient communication even in the presence of conductive elements, thus addressing the space and interference issues in compact electronic devices.
Implementation Method 1
A first magnetic flux may be generated in the conductive coil by the first communication circuit
Implementation Method 2
A second magnetic flux advancing in a direction perpendicular to an advancing direction of the first magnetic flux may be generated in the another portion of the first metal plate by the second communication circuit
Data Source
Figure 1A
Figure 1B
Figure 2
AI summary
An electronic device includes a housing including a first surface facing in a first direction, a second surface facing in a second direction, and a side member; a first metal plate positioned between the first surface and the second surface; a conductive coil winds around the first metal plate; a first communication circuit electrically connected to the conductive coil; a second communication circuit electrically connected to the first metal plate; a display; and a processor. The second surface may include a first portion including a first opening and a second portion filling the first opening. The conductive coil may be positioned under the first portion. A portion of the first metal plate may be wound with the conductive coil, and another portion of the first metal plate may be electrically connected to the second communication circuit. The another portion may extend to the first opening, a first magnetic flux may be generated in the conductive coil by the first communication circuit, and a second magnetic flux may be generated by the second communication circuit in the another portion of the first metal plate.