Wireless Module Antenna Placement and Heat Dissipation
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Solution Overview
Problem
Existing wireless communication modules face issues with antenna radiation characteristics and heat dissipation due to the placement of screws and metal cases, which deteriorate performance, especially in compact designs.
Innovation Solution
A composite module design where the antenna is mounted along one edge of the circuit board, and the connection and metal cases are positioned along the opposite edge, with a heat dissipation member between the electronic components and metal case, and the fixing member is used to transfer heat to the mother board, minimizing interference and enhancing heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the antenna is arranged near the shield case or near a screw for fixing the metal plate, then the radiation characteristics of the antenna are disrupted, but the structural support and shielding are improved
Solution Approach 1:
The circuit board is divided into distinct functional zones: an antenna mounting region along the first end edge and a connection member/shield case region along the second end edge. This spatial segmentation isolates the antenna from interfering components, preserving radiation characteristics while maintaining structural integrity through separate mounting areas.
Solution Approach 2:
The patent utilizes the dimensional space of the circuit board by positioning components along opposite end edges (first end edge vs. second end edge), effectively using the length dimension to maximize separation between the antenna and connection members, thereby minimizing electromagnetic interference while maintaining a compact overall structure.
2Reliability
If the connection member is spaced away from the heat dissipation member, then the radiation characteristics are improved, but the heat dissipation characteristics are deteriorated
Solution Approach 1:
The circuit board is segmented into an antenna region and a heat dissipation region located at opposite end edges. This segmentation allows the connection member to be positioned away from the antenna to preserve radiation characteristics, while the heat dissipation member is strategically placed near the connection member to ensure efficient thermal management through conductive pathways.
Solution Approach 2:
The circuit board itself acts as an intermediary thermal conduction path, connecting the heat dissipation member near the connection member to the overall heat dissipation system. This allows thermal energy to be efficiently transferred through the board structure without requiring the connection member to be in direct contact with the antenna, thus maintaining both radiation and heat dissipation performance.
3Area of stationary object
If the circuit board is small in size, then the device compactness is improved, but the characteristics of the module are deteriorated
Solution Approach 1:
The patent maximizes the utilization of the circuit board's length dimension by positioning the antenna along the first end edge and the connection member along the opposite second end edge. This dimensional arrangement ensures maximum separation between components that could interfere with each other, allowing the module to maintain reliable radiation and heat dissipation characteristics even when the overall board size is minimized for compactness.
Solution Approach 2:
Different regions of the circuit board are assigned specific functional qualities: the first end edge region is optimized for antenna radiation performance, while the second end edge region is optimized for connection and heat dissipation. This local quality differentiation ensures that each component operates in its optimal environment, maintaining module characteristics despite the small overall size of the 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
This configuration effectively prevents deterioration of antenna performance, maintains radiation characteristics, and enhances heat dissipation by spacing critical components and using high thermal conductivity materials to absorb and transfer heat efficiently.
Implementation Method 1
the fixing member is used to transfer heat to the mother board
Data Source
AI summary
A wireless communication module includes a circuit board, and an antenna and a connection member mounted on a mounting surface of the circuit board. The antenna is mounted in a region along a first end edge of the circuit board, and the connection member is mounted in a region along a second end edge of the circuit board.