Integrated Bracket Antenna Structure for Stable PCB Performance
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Solution Overview
Problem
The challenge is to maintain consistent antenna performance and reduce manufacturing costs in electronic devices with limited space, where the antenna is mounted using a printed circuit board, as changes in the circuit board can affect performance and increase carrier manufacturing costs.
Innovation Solution
An antenna structure is implemented using a bracket with a non-conductive first structure and a conductive second structure, where the antenna pattern is electrically connected to the second structure, and a printed circuit board with a grounding and feeding part is integrated, allowing for uniform performance and reduced manufacturing costs by integrating the antenna with the bracket.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the antenna is mounted using a grounding part of a printed circuit board or a carrier, then the antenna can be realized inside a constrained antenna mounting space, but antenna performance may be changed when circuit parts are changed or additional manufacturing costs are increased
Solution Approach 1:
The patent combines the antenna pattern, grounding part, and feeding part into a single integrated bracket structure. The bracket includes a non-conductive first structure and a conductive second structure that forms both the grounding part and the antenna pattern, eliminating the need for separate carriers or PCB-mounted antenna components. This integration ensures antenna performance consistency regardless of circuit part changes.
Solution Approach 2:
The bracket is designed to serve multiple functions simultaneously: it provides structural support, acts as a grounding part through its conductive second structure, and forms the antenna pattern itself. This multi-functionality allows the same component to maintain antenna performance across different circuit configurations without requiring additional manufacturing steps or carriers.
2Volume of moving object
If the antenna is mounted using a grounding part of a printed circuit board or a carrier, then the antenna can be realized inside a constrained antenna mounting space, but costs for manufacturing the carrier may be additionally increased
Solution Approach 1:
The patent merges the antenna structure with the bracket, eliminating the need for a separate carrier component. The antenna pattern is formed using the conductive second structure of the bracket itself, which is manufactured through a double-injection molding process. This integration removes additional manufacturing steps and material costs associated with separate carriers.
Solution Approach 2:
The bracket is manufactured using a double-injection molding process that combines a non-conductive first structure (e.g., polymer) and a conductive second structure (e.g., metal or conductive polymer). This composite material approach allows the bracket to simultaneously provide mechanical support and electrical functionality, reducing the need for additional components and manufacturing processes.
3Reliability
If a separate carrier is used to mount the antenna, then the antenna can be realized, but additional costs for manufacturing the carrier are increased
Solution Approach 1:
The patent extracts the carrier function from the antenna mounting system and eliminates it entirely. Instead of using a separate carrier to mount the antenna, the bracket itself is designed to provide both structural support and antenna functionality through its integrated non-conductive first structure and conductive second structure.
Solution Approach 2:
The bracket and antenna are merged into a single integrated structure. The conductive second structure of the bracket serves as both the grounding part and the antenna pattern, eliminating the need for a separate carrier and reducing manufacturing complexity and cost.
Data Source
AI summary
An electronic device includes a bracket including a first structure at least partially having non-conductivity, a second structure disposed on a first surface of the first structure and at least partially having conductivity, and an antenna pattern electrically connected with the second structure and disposed on a second surface of the first structure, and a printed circuit board including a grounding part and a feeding part. The grounding part is electrically connected with the second structure, and the feeding part is electrically connected with a portion of the antenna pattern.