RFID Security Capsule Loop Layout for Metal Signal Shielding
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Solution Overview
Problem
RFID tags integrated into metal capsules face issues with signal shielding and are prone to damage, leading to operational failures and unsightly protuberances when positioned on the upper surface.
Innovation Solution
A product security capsule with a conductive loop on the outer surface of a capsule body, integrated with a radio frequency identification chip, where the loop is frangible and extends beyond the capsule opening, ensuring signal integrity and protection against damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the RFID tag antenna is positioned on the upper surface of the metal capsule, then signal transmission is improved, but the antenna becomes susceptible to damage and creates an unclean appearance with protuberances
Solution Approach 1:
The patent embeds the RFID tag antenna within the metal capsule structure itself, nesting the antenna inside the capsule body rather than positioning it on the outer surface. This nesting approach protects the antenna from damage while maintaining signal transmission capability through the metal capsule.
Solution Approach 2:
The patent introduces a specific antenna configuration that acts as an intermediary between the RFID chip and the external reader, using a loop antenna design that extends through the capsule opening to enable signal transmission without requiring the antenna to be exposed on the outer surface.
2Reliability
If the RFID tag antenna is positioned on the upper surface of the metal capsule, then signal transmission is improved, but the capsule appearance deteriorates with humps or protuberances
Solution Approach 1:
The antenna is nested within the capsule structure, with the loop antenna integrated into the capsule body and extending through the opening. This nesting eliminates the need for external antenna housings or surface-mounted components that would create unsightly protuberances.
Solution Approach 2:
The patent applies local quality by creating a specific opening in the capsule where the antenna extends through, allowing signal transmission only at that localized area while maintaining the smooth, clean appearance of the rest of the capsule surface.
3Reliability
If the conductive loop antenna extends beyond the capsule opening, then signal transmission is enabled, but the antenna becomes more susceptible to damage during handling
Solution Approach 1:
The patent incorporates a frangible connection design in advance, where the antenna connection is intentionally designed to break under excessive force. This preliminary action ensures that if damage occurs, it happens in a controlled manner that protects the RFID chip while still allowing normal handling.
Solution Approach 2:
The frangible connection acts as a preliminary anti-action mechanism, designed to fail safely before the main antenna or RFID chip can be damaged. This preemptive design prevents harmful forces from reaching critical components during abnormal handling events.
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
Ensures reliable signal transmission and prevents damage to the RFID tag during handling, maintaining operational integrity and aesthetics.
Implementation Method 1
a loop antenna connected to the RFID chip, the loop antenna having a cap portion, a joint portion, and a neck portion
Data Source
Figure 1
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Figure 3~4
AI summary
A product security capsule for a container including a capsule body having a cap portion and a neck portion and at least one joint portion, wherein there is a gap between the cap portion and a neck portion, the joint portion crossing over the gap and coupled to both the cap portion and the neck portion, a radio frequency identification (RFID) chip including an antenna circuit, a conductive loop operatively connected to the RFID chip, the conductive loop having a cap portion, a joint portion, and a neck portion.