Integrated Camera Antenna Module for Laptop Signal Efficiency
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Solution Overview
Problem
Conventional embedded antenna designs for laptops face issues such as severe signal attenuation, complex assembly, poor radiation patterns, and high specific absorption rate (SAR) due to the use of co-axial cables and separate connections for camera and wireless modules, which complicates the design and increases manufacturing costs, especially when requiring different antenna structures for various laptop models.
Innovation Solution
An integrated module with a substrate-based antenna design that includes a camera module and a first antenna featuring a grounding portion, low-frequency and high-frequency radiating arms, feed-in lines, and a shorting portion, allowing for adjustable feeding points to optimize frequency bandwidth and reduce interference, enabling easier assembly and adaptation for different laptop models.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If co-axial cables are used to connect antennas to wireless modules, then the antenna can be disposed at various locations, but severe signal attenuation occurs due to cable length
Solution Approach 1:
The patent merges the antenna and wireless module into a single integrated module, eliminating the need for co-axial cables. The antenna is directly fabricated on the module substrate adjacent to the wireless module, thereby removing the signal transmission path through cables and eliminating associated attenuation while maintaining location flexibility.
Solution Approach 2:
The module substrate serves as an intermediary medium, providing both mechanical support and electrical signal transmission between the antenna and wireless module without requiring external co-axial cables. This intermediary structure reduces signal loss while enabling flexible antenna placement.
2Ease of operation
If co-axial cables are used to connect antennas, then the antenna can be installed separately, but the assembly process becomes complicated
Solution Approach 1:
The antenna and wireless module are merged into a single integrated module that is installed as one unit, eliminating the separate cable connection steps and simplifying the assembly process while maintaining installation flexibility.
Solution Approach 2:
The integrated module is designed as a separate functional unit that can be independently assembled and then installed as a complete module, reducing the complexity of internal connections while maintaining ease of installation.
3Loss of energy
If antennas are disposed around the hinge under the screen, then cable length is reduced, but radiation pattern deteriorates and SAR issues arise
Solution Approach 1:
The patent positions the antenna at a specific location on the module substrate adjacent to the wireless module, creating a localized optimal radiation environment. This specific positioning avoids the harmful effects of hinge-area disposal while maintaining short signal paths, achieving both low signal loss and good radiation patterns.
4Ease of manufacture
If separate digital signal lines are used for camera module and wireless module, then each module can be independently connected, but the design becomes more complex and costly
Solution Approach 1:
The camera module and wireless module are merged into a single integrated module with shared signal lines. The camera signal line is designed to serve both modules, reducing the total number of signal lines required while maintaining independent functionality of each module.
Solution Approach 2:
The camera signal line is designed with multi-functionality, serving both the camera module and wireless module. This universal signal line reduces design complexity and manufacturing costs while maintaining the ability to independently connect and operate each module.
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 design improves signal efficiency, reduces interference, and allows for simultaneous adjustment of low-frequency and high-frequency operations, simplifying manufacturing and reducing costs by eliminating the need for separate signal lines and co-axial cables, while maintaining compliance with safety specifications.
Implementation Method 1
The first low-frequency radiating arm has a first connection portion and a first free-end portion, wherein the first connection portion is connected to the first grounding portion. The first high-frequency radiating arm has a second connection portion and a second free-end portion, wherein the second connection portion is connected to the first grounding portion
Implementation Method 2
The first feed-in line is perpendicular to the first side of the ground and extending to a direction away from the ground plane to provide the first feeding-point and the second feeding-point
Data Source
AI summary
An integrated module having an antenna comprises a module substrate, a camera module and the antenna disposed on the module substrate. The antenna comprises a grounding portion connected to ground plane, a low-frequency radiating arm, a high-frequency radiating arm, a feed-in line and a shorting portion. A connection portion of the low-frequency radiating arm and a connection portion of the high-frequency radiating arm are connected to the grounding portion. A free-end portion of the high-frequency radiating arm and a free-end portion of the low-frequency radiating arm are back-to-back and extend towards opposite directions. The feed-in line is perpendicular to an edge of the ground plane and extends away from the ground plane. The feed-in line crosses and connects the high-frequency radiating arm to provide a second feeding-point. The end of the feed-in line is connected to the connection portion of the low-frequency radiating arm to provide a first feeding-point.