Rotatable Antenna Coupler Bracket for Mobile Phone Testing
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Solution Overview
Problem
Existing antenna couplers for testing mobile telephones are sensitive to changes in antenna position and cannot accommodate devices of different structural shapes, leading to high coupling attenuation and obstructed or prevented testing.
Innovation Solution
An antenna coupler with a rotatable mounting bracket featuring pins that can be adjusted to any angular position, allowing for reproducible mounting of mobile telephones of varying shapes without reducing coupling, using a mounting surface with a rectangular raster of openings for precise positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed mounting element is used for mobile telephones, then the position of the mobile telephone is fixed, but mobile telephones of different structural shapes cannot be accommodated and satisfactory coupling cannot be guaranteed
Solution Approach 1:
The mounting bracket is made rotatable about a single pin, allowing it to be rotated into any required angular position. This dynamic adjustment capability enables the bracket to adapt to mobile telephones of different structural shapes while maintaining reproducible positioning and optimal coupling for testing purposes.
2Adaptability or versatility
If the mounting bracket is made rotatable to accommodate different shapes, then adaptability increases, but the complexity of the mounting mechanism increases
Solution Approach 1:
The mounting bracket is designed as a separate, detachable component that can be independently rotated and positioned. This segmentation allows the bracket to be adjusted for different phone shapes without complicating the overall antenna coupler structure, as the rotation mechanism is isolated to a single pin joint.
Solution Approach 2:
The rotatable mounting bracket serves multiple functions: it provides reproducible positioning, accommodates different structural shapes, and maintains optimal coupling. This multi-functionality is achieved through a simple rotation mechanism rather than multiple separate adjustment systems, thereby avoiding increased complexity.
3Measurement precision
If precise positioning is required for optimal coupling, then measurement precision improves, but the ease of operation decreases
Solution Approach 1:
The mounting bracket's rotatable design allows the operator to visually align and position the bracket for optimal coupling without requiring complex alignment tools or procedures. The single-pin rotation mechanism enables intuitive adjustment while maintaining reproducible positions, balancing precision with ease of operation.
Data Source
AI summary
An antenna coupler for testing mobile transmitters and/or receivers, especially mobile telephones, comprises a mounting surface for the mobile transmitter and/or receiver and an antenna element. A mounting bracket is disposed on the mounting surface.