Pre-Bent Wire Antenna Mounting for Contactless Payment Terminals
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Solution Overview
Problem
Existing contactless payment terminals face interference issues due to close proximity of wireless communication functions, leading to disturbances and complex, labor-intensive antenna winding processes that affect performance consistency and cost.
Innovation Solution
A previously bent rigid metallic wire antenna with gripping and guiding means is used, eliminating manual winding and ensuring consistent performance by adapting to the internal structure, with optional fastening spacers for spacing and connection to the motherboard.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a flexible electric cable is wound manually around an internal structural part to form a contactless antenna, then the production cost related to labor is reduced, but the winding operation becomes delicate and labor time increases significantly
Solution Approach 1:
The rigid metallic wire is pre-bent into the desired antenna shape before insertion into the terminal. This preliminary shaping action eliminates the need for delicate manual winding during assembly, reducing both labor time and the risk of winding errors while maintaining cost-effectiveness through simplified manufacturing processes
2Adaptability or versatility
If a flexible electric cable is used for the contactless antenna, then the antenna can be wound around internal structural parts, but the cable must be insulated resulting in increased diameter and additional mounting constraints
Solution Approach 1:
The patent changes the material parameter from flexible insulated cable to rigid metallic wire. This parameter change eliminates the need for insulation layers, reducing the diameter and simplifying mounting constraints while maintaining the necessary electrical conductivity and structural integrity for antenna function
3Volume of moving object
If multiple wireless communication functions are embedded in a light and compact payment terminal, then the terminal size is reduced, but disturbances occur between different communication functions when activated simultaneously
Solution Approach 1:
The contactless antenna is extracted and positioned at the periphery of the internal structural part, close to the external surface of the terminal. This spatial extraction separates the antenna from other wireless communication components located in the terminal interior, reducing electromagnetic interference while maintaining compact terminal dimensions
4Reliability
If the radio communication antenna is placed around the screen close to the external surface, then the quality of reception and emission is satisfactory, but the mounting operation becomes complex and labor-intensive
Solution Approach 1:
The rigid metallic wire is pre-formed into the exact antenna configuration required for optimal reception and emission performance. This preliminary action ensures the antenna maintains its precise geometric shape during mounting, eliminating complex winding operations and reducing mounting complexity while preserving high reception quality
Data Source
AI summary
A system including a structural part of an internal architecture of an electronic terminal, constituted by a rigid material and a radio communications antenna. According to the invention, the system wherein the radio communications antenna is constituted by a previously bent rigid metal wire forming at least one turn around the structural part; and in that the internal structural part includes, on its periphery, means for gripping and guiding the rigid metal wire constituting the radio communications antenna.