Foldable Device Antenna Beam Control for Module Interference
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Solution Overview
Problem
Antenna modules in electronic devices, such as smartphones, experience performance deterioration when operating at maximum effective isotropic radiated power (EIRP) in the FR2 band, affecting modules like GPS, Wi-Fi, UWB, and cameras, especially in devices with foldable or slideable displays, due to changing angles or aspect ratios.
Innovation Solution
An electronic device with a processor that detects state changes in the display using sensors, identifies affected electronic circuitry, and deactivates specific beams generated by the antenna module to reduce performance deterioration, using a method that adjusts beam direction, phase, or intensity to compensate for the deactivated beam.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the antenna module operates at maximum EIRP in FR2 band, then communication performance is improved, but performance deterioration occurs in electronic modules such as GPS, Wi-Fi, UWB, LTE, and camera
Solution Approach 1:
The antenna module's beam output is segmented and selectively deactivated. Instead of deactivating the entire antenna module, only specific beams that cause interference with electronic modules are deactivated while other beams continue to operate, thereby maintaining communication performance while preventing deterioration in electronic modules.
Solution Approach 2:
The interference prevention is applied locally to specific beams rather than globally to the entire antenna module. The processor identifies and deactivates only those beams that cause deterioration in electronic modules, allowing other beams to maintain maximum EIRP for communication, thus resolving the contradiction between communication performance and electronic module reliability.
2Power
If the antenna module operates at maximum EIRP in FR2 band, then communication performance is improved, but deterioration occurs in electronic modules according to display folding angle or slideable display aspect ratio
Solution Approach 1:
The beam deactivation strategy is dynamically adjusted based on display state. The processor detects display folding angles or aspect ratios and adapts which beams to deactivate accordingly, making the system responsive to changing geometric configurations that affect beam interference patterns with electronic modules.
Solution Approach 2:
The system uses feedback from display state detection to control beam deactivation. The sensor detects display configuration, the processor determines which beams cause interference based on this state, and adjusts beam deactivation accordingly, creating a closed-loop system that prevents harmful effects while maintaining communication 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 approach effectively minimizes performance deterioration in electronic modules by dynamically managing antenna beam output based on display states, maintaining optimal performance across various configurations without excluding critical beams.
Implementation Method 1
an antenna configured to transmit and receive an electromagnetic wave
Data Source
AI summary
An electronic device and method of preventing deterioration by an operation of an antenna are provided. The electronic device includes a display configured to be folded and unfolded, and provide content, a sensor configured to detect a state change of the display, an antenna configured to transmit and receive an electromagnetic wave, and at least one processor electrically connected to the display, the sensor, and the antenna, in which the at least one processor is configured to detect a state change of the display by using the sensor, identify one or more operating electronic circuitry among electronic circuitries in the electronic device, determine an electronic circuitry in which deterioration is caused by an operation of the antenna among the one or more operating electronic circuitry, based on the state change of the display, and deactivate a certain beam among beams generated by the antenna to reduce deterioration of the determined electronic circuitry.