PCB Antenna Assembly With Nested Mounting to Reduce Protrusion
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Solution Overview
Problem
Existing antennas attached to circuit boards have a significant protrusion, which limits their integration and space efficiency due to their design.
Innovation Solution
The antenna is configured with a main portion positioned below the soldering terminal in the vertical direction, allowing it to be partially within the circuit board thickness, with soldering terminals extending horizontally and fixed portions positioned differently, reducing the overall protrusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the antenna is attached using conventional mounting methods (securing bracket and bolts), then the antenna can be firmly fixed on the circuit board, but the protruding portion of the antenna becomes large
Solution Approach 1:
The antenna structure is designed to extend through the circuit board thickness, with portions positioned both above and below the board surface. The main body is nested within the circuit board volume, allowing the protruding portion to be minimized while maintaining functional dimensions.
Solution Approach 2:
The antenna design transitions from a conventional surface-mounted configuration to a three-dimensional configuration that utilizes the vertical dimension through the circuit board. By positioning parts of the antenna below the circuit board surface, the protruding portion in the horizontal dimension is reduced.
2Length of moving object
If the antenna protrusion is reduced to improve space efficiency, then integration is enhanced, but the antenna structure becomes more complex
Solution Approach 1:
The antenna structure integrates multiple functions into a single component: the main body serves as both the radiating element and the mounting structure. The soldering terminals and fixed portions are integrated directly into the antenna body, eliminating the need for separate mounting brackets or additional fastening components.
Solution Approach 2:
The antenna structure performs multiple functions simultaneously: it provides electromagnetic radiation through its main body, mechanical attachment through soldering terminals, and structural stability through fixed portions. This multi-functionality reduces the need for additional specialized components.
Data Source
AI summary
An antenna is configured to be soldered on a circuit board. The antenna comprises a main portion, at least one soldering terminal and at least one fixed portion. The main portion has a height in a vertical direction. The main portion is, at least in part, positioned below the soldering terminal in the vertical direction when the soldering terminal is soldered on the circuit board. The soldering terminal extends from the main portion along a horizontal plane perpendicular to the vertical direction. When the soldering terminal is soldered on the circuit board, the fixed portion is fixed on the circuit board at a location different from a location of the soldering terminal.