Miniaturized RFID Tag with Detachable Magnifier Interposer
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Solution Overview
Problem
Existing solutions for anti-counterfeit and anti-theft applications are often incompatible due to size constraints, with miniaturized solutions suitable for anti-counterfeit purposes being inadequate for anti-theft and tracking applications, and vice versa, leading to a need for a multi-functional solution that can facilitate both short-range and long-range communication.
Innovation Solution
A miniaturized tag device with a detachable magnifier interposer that includes a band-stop filter and far-field or near-field antenna, allowing for selective frequency operation between anti-counterfeit and anti-theft/tracking modes, enabling the same device to be used for both short-range anti-counterfeit and long-range anti-theft/tracking functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a miniaturized RFID solution is used for anti-counterfeit purposes, then the device size is reduced and can be embedded in items, but the reading range is reduced making it incompatible with anti-theft detection at store gates
Solution Approach 1:
The system is divided into two separate functional components: a miniaturized tag (for anti-counterfeit) and a detachable magnifier interposer (for anti-theft/tracking). The interposer contains a larger antenna that can be coupled to the miniaturized tag when long-range communication is needed, while the tag itself remains small for embedding in items.
Solution Approach 2:
The detachable magnifier interposer acts as an intermediary between the miniaturized tag and the reader. It includes a larger antenna that couples to the tag's antenna, enabling extended communication range for anti-theft applications while the tag itself remains miniaturized for anti-counterfeit embedding.
2Length of stationary object
If larger antennas are used for anti-theft and tracking applications, then the reading range is extended, but the device size increases making it incompatible with anti-counterfeit applications
Solution Approach 1:
The antenna system is segmented into a small integrated antenna in the miniaturized tag and a larger external antenna in the detachable magnifier interposer. The larger antenna provides extended reading range when coupled to the tag, but can be detached when only anti-counterfeit functionality is needed.
Solution Approach 2:
The antenna configuration is made dynamic and adjustable. The detachable magnifier interposer can be coupled to or decoupled from the miniaturized tag depending on the application requirements, allowing the system to adapt between short-range anti-counterfeit mode and long-range anti-theft mode.
3Adaptability or versatility
If a single device is designed to perform both anti-counterfeit and anti-theft functions, then device versatility is improved, but device complexity increases
Solution Approach 1:
The system is segmented into a simple miniaturized tag and a separate magnifier interposer. Each component has a specific function, and their combination provides multi-functionality without requiring each individual component to be complex.
Solution Approach 2:
The detachable magnifier interposer is designed as a universal accessory that can be coupled with miniaturized tags to extend their functionality from short-range anti-counterfeit to long-range anti-theft and tracking applications, making the same tag suitable for multiple applications.
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
Enables the same device to function effectively in both anti-counterfeit and anti-theft/tracking applications by selectively enabling or disabling the interposer, providing enhanced security and flexibility in protecting and tracking items.
Implementation Method 1
a detachable magnifier interposer may comprise a coupler (e.g. inductive, capacitive, electromagnetic or galvanic), a stop-band filter (e.g., a notch filter) and a far-field or near-field antenna
Implementation Method 2
a detachable magnifier interposer may comprise a coupler (e.g. inductive, capacitive, electromagnetic or galvanic), a stop-band filter (e.g., a notch filter) and a far-field or near-field antenna
Data Source
AI summary
An electromagnetic interposer circuit is attachable to an article that is also equipped with an anti-counterfeit and anti-theft/tracking electromagnetic marker. The interposer circuit includes a first interface for exchanging electrical signals with the marker at a first, shorter, communication range and a second interface coupled to the first interface for exchanging electromagnetic signals with a reader at a second, longer, communication range. The first and second interfaces exchange signals with the marker and the reader, respectively, over a radiofrequency bandwidth that includes a first frequency band and a second frequency band. A filter circuit block within the interposer circuit between the first interface and the second interface operates to block the transfer of signals between the first interface and the second interface over the first frequency band.