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
A multi-frequency RFID switch tag design featuring a base component with a UHF booster and a detachable component containing both UHF and HF RFID modules, allowing configuration changes to support operation in different frequency ranges, enabling functionality as both UHF and HF systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional RFID tag is designed for a single frequency, then it achieves reliable operation at that specific frequency, but it lacks the flexibility to operate in multiple frequency ranges
Solution Approach 1:
The RFID tag is divided into two separate components: a base component containing the UHF booster antenna and a detachable component containing both UHF and HF RFID modules. This segmentation allows the tag to be configured for different frequencies by simply attaching or detaching the detachable component, providing multi-frequency operation without requiring a complex integrated design.
Solution Approach 2:
The RFID tag employs a dynamic configuration where the detachable component can be attached to or separated from the base component. When attached, the system operates in UHF mode with the booster; when detached, the HF modules remain functional. This dynamic reconfiguration enables the tag to adapt to different frequency requirements based on operational needs.
2Speed
If a UHF booster is integrated into the RFID tag to extend operating range, then the tag achieves greater read distance and faster data transfer, but the tag becomes less adaptable to HF applications requiring shorter ranges
Solution Approach 1:
The RFID system is segmented into a base component with the UHF booster antenna and a detachable component with HF modules. This segmentation allows the UHF booster to be used for high-speed data transfer applications while the HF modules remain available for contactless payment and other short-range applications, providing versatility across different frequency requirements.
Solution Approach 2:
The detachable component is designed to contain both UHF and HF RFID modules, making it a universal component that can work with either the UHF booster in the base component or independently for HF operations. This multi-functionality allows a single detachable component to serve multiple frequency-based applications.
3Adaptability or versatility
If a detachable component design is used to enable multiple configurations, then the tag achieves versatility across different applications, but the manufacturing and assembly processes become more complex
Solution Approach 1:
The RFID tag is manufactured in two separate components that can be independently produced and then assembled. The base component contains the UHF booster antenna, while the detachable component contains the HF modules. This segmentation allows each component to be manufactured using optimized processes for its specific function, simplifying overall manufacturing despite the multi-configuration capability.
Solution Approach 2:
The detachable design allows for dynamic assembly and disassembly, enabling the same base component to work with different detachable components or vice versa. This dynamic approach simplifies manufacturing by allowing components to be produced separately and assembled only when needed, rather than requiring complex integrated manufacturing processes.
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 RFID tag to function seamlessly in various applications by switching between UHF and HF modes, extending its operational range and versatility in multiple RFID applications, including electronic toll collection and contactless payments.
Implementation Method 1
a base component having an ultra-high frequency (UHF) booster, such as an UHF booster antenna
Implementation Method 2
a detachable component having at least one UHF RFID module and a high frequency (HF) RFID module, such as a near-field communication (NFC) tag
Data Source
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.