Chipless RFID Resonant Elements Embedded in Containers
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Solution Overview
Problem
Conventional radio frequency identification (RFID) tags are not suitable for small diagnostic products due to size and orientation constraints, are costly, and prone to interference, with high scrap rates and limited information capacity, making them unsuitable for medical diagnostics.
Innovation Solution
The use of chipless RFID elements embedded in containers, comprising multiple categories of resonant elements that can be molded into the product, allowing for versatile identification and verification of contents without the need for microchips, enabling low-cost, flexible, and interference-resistant product identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional RFID tags with microchips are used, then identification capability is provided, but cost increases and size constraints are imposed
Solution Approach 1:
The patent extracts and removes the expensive microchip component from the RFID tag system, retaining only the antenna structure. This extraction eliminates the primary cost driver while maintaining the essential RFID functionality through chipless resonant elements that can be directly molded into the container.
Solution Approach 2:
The patent employs inexpensive resonant elements (such as metal particles, conductive polymers, or patterned conductive layers) that can be directly integrated into the container manufacturing process. These cheap, disposable-like elements replace expensive microchips and provide sufficient identification capability without requiring costly assembly operations.
2Reliability
If RFID tags are placed on container surfaces, then identification is enabled, but orientation and placement precision become critical
Solution Approach 1:
The patent merges the RFID resonant elements directly into the container structure itself during the molding process. This integration eliminates the separate step of placing tags on the container surface, thereby removing the critical placement accuracy requirement while maintaining signal reception capability through the embedded resonant structures.
Solution Approach 2:
The resonant elements serve multiple functions: they provide RFID identification capability, act as structural reinforcement elements during molding, and eliminate the need for separate tag placement operations. This multi-functionality resolves the contradiction by making the identification system independent of precise placement operations.
3Ease of manufacture
If bar code labels are used for identification, then cost is reduced, but information capacity and reliability are limited
Solution Approach 1:
The patent replaces the mechanical/optical bar code system with an electromagnetic RFID system using resonant elements. This substitution enables wireless reading of identification data, eliminating the need for optical paths and physical label handling, while providing significantly higher information capacity through the resonant element configurations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution provides a cost-effective, versatile, and interference-resistant RFID system that can identify container contents without size or placement constraints, offering high information capacity and reliable operation across a wide temperature range.
Implementation Method 1
The resonant elements can be read by a radio frequency identification reader that sends out radio frequency signals and detects the responses of the resonant elements. The responses of the resonant elements to the radio frequency signals can include absorption, diffraction, or scattering of the radio frequency signals.
Implementation Method 2
The responses of the resonant elements to the radio frequency signals can include absorption, diffraction, or scattering of the radio frequency signals.
Implementation Method 3
chipless radio frequency identification elements comprises a plurality of categories of resonant elements
Data Source
AI summary
A container comprising a body having embedded therein a plurality of chipless radio frequency identification elements. The chipless radio frequency identification elements comprise a plurality of categories of resonant elements. The resonant elements can be utilized in a system having a binary code feature. The combination of different resonant elements can be read and translated to identify the features of a particular product. The container can be prepared by compounding moldable compositions with the resonant elements and molding the moldable compositions containing the resonant elements into the final product. The invention also provides a system and a method for reading the binary code provided by the chipless radio frequency identification elements.