Integrated Module Antenna Grounding for Signal Attenuation
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Solution Overview
Problem
Conventional embedded antenna designs for electronic devices face issues such as severe signal attenuation, complex assembly, poor radiation patterns, and safety concerns related to specific absorption rate (SAR) due to the use of co-axial cables and separate digital signal lines for camera and wireless modules.
Innovation Solution
An integrated module system comprising a circuit board with an antenna exciting unit, wireless module, module grounding plane, system grounding plane, grounding metal, camera module, and digital signal line, where the wireless module and camera module share a common grounding plane and digital signal line, eliminating the need for co-axial cables and enhancing antenna efficiency by providing a larger grounding area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If co-axial cables are used to connect antennas to wireless module, then antenna can be disposed at various locations, but signal attenuation becomes severe
Solution Approach 1:
The patent integrates the wireless module and camera module into a single integrated module assembly, eliminating the need for separate co-axial cable connections. The antenna is directly coupled to the wireless module within the integrated assembly, removing the intermediate cable that caused signal attenuation while maintaining location flexibility through the integrated design.
Solution Approach 2:
The patent extracts and eliminates the co-axial cable from the system by directly integrating the antenna connection to the wireless module. This removal of the intermediate cable component solves the signal attenuation problem while the integrated module maintains the necessary connectivity functions.
2Adaptability or versatility
If co-axial cables are used to connect antennas, then antenna installation is flexible, but assembly complexity increases
Solution Approach 1:
The patent combines the wireless module, camera module, and antenna into a single integrated module assembly. This merging eliminates the need for separate cable assembly and connection steps, reducing assembly complexity while maintaining installation flexibility through the integrated design.
Solution Approach 2:
The patent removes the co-axial cable and its associated assembly steps from the system. By extracting this intermediate component, the assembly process is simplified while the integrated module maintains the necessary connectivity and installation flexibility.
3Loss of energy
If antennas are disposed around hinge under screen, then co-axial cable length is reduced, but radiation pattern deteriorates and SAR issues arise
Solution Approach 1:
The patent integrates the wireless module with the camera module and antenna into a single assembly positioned at the upper edge of the screen. This integration allows optimization of the antenna's radiation pattern and SAR performance through proper positioning and grounding, while maintaining short connection lengths.
Solution Approach 2:
The integrated module serves multiple functions including wireless communication, camera operations, and optimized antenna radiation. The unified design allows simultaneous optimization of signal loss, radiation pattern, and SAR compliance through integrated grounding and positioning.
4Adaptability or versatility
If wireless module and camera module are separated with separate digital signal lines, then module independence is maintained, but noise interference increases
Solution Approach 1:
The patent integrates the wireless module and camera module into a single assembly with shared grounding. This integration allows for reduced noise interference through common grounding reference while maintaining functional independence of each module through separate interfaces and connections to the integrated circuit board.
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 integrated module system improves antenna efficiency, reduces noise interference, and addresses SAR concerns by eliminating co-axial cables and providing a larger grounding area for improved radiation performance.
Implementation Method 1
a grounding metal (66) electrically connected to the module grounding plane (68) and the system grounding plane (67)
Implementation Method 2
The radiofrequency signal of the wireless module (63) is coupled to the radiator of antenna via the antenna exciting unit (62)
Data Source
AI summary
A system of integrated module with antenna used for an electronic device comprises a circuit board, at least one antenna exciting unit, a wireless module, a module grounding plane, a grounding metal, a camera module and a digital signal line. The antenna exciting unit is used to couple with an antenna. The wireless module and the camera module are disposed on the circuit board to couple with the module grounding plane. The wireless module is electrically connected to the antenna exciting unit. The grounding metal is electrically connected to the module grounding plane and a system grounding plane. The digital signal line is electrically connected to the wireless module and the camera module is a digital transmission media. The wireless module, the camera module and the circuit board constitute an integrated module for disposing at an up-side of a screen of the electronic device.