Detachable RFID Switch Tag for Multi-Frequency Operation
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Solution Overview
Problem
Conventional RFID tags lack flexibility to operate effectively across multiple frequencies, limiting their application in diverse RFID systems such as electronic toll collection and contactless payment systems.
Innovation Solution
The RFID switch tag design incorporates a base component with a UHF booster and a detachable component featuring both UHF and HF RFID modules, allowing configuration changes to support operation in multiple frequencies, enabling extended UHF range and standalone HF functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional RFID tag uses a single frequency design, then the device structure is simple, but the adaptability to different RFID applications is limited
Solution Approach 1:
The RFID tag is divided into two independent modules: a UHF RFID module and an HF RFID module. Each module operates independently at its designated frequency, allowing the tag to adapt to different RFID applications (UHF for electronic toll collection, HF for contactless payments) without requiring a completely different tag design.
Solution Approach 2:
The RFID tag is designed to perform multiple functions by integrating both UHF and HF RFID modules within a single tag structure. This multi-functional design enables the same tag to be used across different frequency requirements and application scenarios, eliminating the need for multiple separate tags.
2Adaptability or versatility
If a RFID tag integrates both UHF and HF modules in a fixed configuration, then multi-frequency operation is achieved, but the flexibility to switch between frequencies is reduced
Solution Approach 1:
The RFID tag incorporates a detachable component design where the HF RFID module can be separated from the UHF RFID module. This dynamic configuration allows users to attach or detach the HF module based on the required frequency, providing flexible switching between UHF-only and dual-frequency modes without complex electronic controls.
3Reliability
If a RFID tag is designed for UHF operation with extended range, then the UHF performance is improved, but the capability to operate as a standalone HF tag is lost
Solution Approach 1:
The tag structure is segmented into a base component containing the UHF RFID module with UHF booster antenna for extended UHF range, and a detachable component containing the HF RFID module. This segmentation ensures that each module maintains its optimized performance characteristics while allowing flexible configuration.
Solution Approach 2:
A detachable component serves as an intermediary between the UHF and HF modules. When attached, it enables dual-frequency operation; when detached, it allows the HF module to function as a standalone tag while preserving the UHF module's extended range capabilities in the base component.
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 design enables the RFID switch tag to function effectively in various applications by switching between UHF and HF modes, providing extended range and versatility in RFID systems, such as electronic toll collection and contactless payments.
Implementation Method 1
ultra high frequency (UHF) booster, such as an UHF booster antenna
Implementation Method 2
high frequency (HF) RFID module, such as a near-field communication (NFC) tag
Data Source
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AI summary
A radio frequency identification (RFID) switch tag is disclosed. This RFID switch tag includes a base component having an ultra-high frequency (UHF) booster, and a detachable component having at least one UHF RFID module and a high frequency (HF) RFID module. In some embodiments, the detachable component is positioned in close proximity to the base component in a first configuration of the RFID switch tag such that the at least one UHF RFID module is sufficiently coupled to the UHF booster in the base component to form an UHF RFID system having a desired performance. The detachable component can also be separated from the base component to obtain a second configuration of the RFID switch tag, and the HF RFID module remains functional within the detached detachable component so that the detachable component can be used as a standalone HF RFID tag.