RFID Antenna Cutting from Apertured Conductive Sheets
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Solution Overview
Problem
Existing RFID devices are not adaptable to small to mid-level applications due to high production costs and the need for specialized designs, and they often fail to meet diverse performance requirements and operating environments.
Innovation Solution
A method involving a conductive material sheet with apertures, where cutting locations are selectively chosen to tailor antenna characteristics, allowing for the production of antennas with specific performance traits, enabling flexibility in design and cost-effective small production runs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If specialized designs are created for small to mid-level applications, then performance requirements are met, but production costs increase
Solution Approach 1:
The patent applies universality by creating a single standardized antenna design that can serve multiple different applications and performance requirements. The antenna structure is designed to be adaptable through configuration changes rather than requiring completely different designs for each application, thereby reducing development and production costs while meeting diverse performance needs.
Solution Approach 2:
The patent employs parameter changes by modifying the antenna's physical dimensions, material properties, or geometric parameters to achieve different performance characteristics from the same basic design. This allows customization for specific applications without creating entirely new designs, maintaining cost-effectiveness while meeting varied performance requirements.
2Ease of manufacture
If standardized designs are used for large-scale applications, then production costs are reduced, but adaptability to small to mid-level applications is lost
Solution Approach 1:
The patent applies dynamics by creating an antenna design that can be dynamically adjusted or reconfigured for different applications. The standardized base design incorporates adjustable parameters or modular elements that allow it to adapt to small to mid-level applications without requiring complete redesign, thus maintaining both cost-effectiveness and versatility.
Solution Approach 2:
The patent uses segmentation by dividing the antenna into modular components or functional sections that can be selectively configured or omitted based on application requirements. This allows the standardized design to be adapted for different scales and performance needs while maintaining manufacturing efficiency through repeated use of the same modular building blocks.
3Reliability
If specialized antenna designs are developed for each application, then performance is optimized, but development time and lead time increase
Solution Approach 1:
The patent applies preliminary action by pre-developing a standardized antenna design that has been optimized for general performance. This baseline design can be quickly deployed for new applications, and only minor parameter adjustments are needed rather than starting from scratch, thereby significantly reducing development lead time while maintaining adequate performance optimization.
Data Source
AI summary
A method of producing antennas for RFID devices includes cutting or otherwise physically separating the antennas from a preformed sheet of conductive material that includes apertures in the conductive material. Cutting locations relative to the apertures may be selected based on desired performance characteristics of the antenna and/or of the RFID device for which the antenna is to be used. The cutting locations may include one or more cuts through the aperture, and other cuts that do not pass through an aperture. The cutting locations may be selected as a function of such parameters as the desired bandwidth of the antenna and the operating frequency of the antenna. The method allows production of antennas with different characteristics, from a previously-prepared supply of sheet conductive material. This facilitates the ability to make small production runs of antennas, and/or to reduce the lead time for providing antennas with specified characteristics.