RFIC Module Planar Conductor Edge Placement
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Solution Overview
Problem
RFIC modules placed at the center of radiation plates do not effectively function as radiating elements due to current density distribution, leading to inefficient radiation performance.
Innovation Solution
An RFIC module configuration with a first and second planar conductor, an inductor, and an RFIC, where the inductor's ends and RFIC's ends are connected to the outer edges of the planar conductors, providing a uniform electric field and inverted voltage phases, allowing efficient radiation when placed at the end portion of a radiation plate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the RFIC module is disposed at the center of the radiation plate, then the current flow efficiency in the radiation plate is improved, but the radiation efficiency deteriorates when disposed at the end portion
Solution Approach 1:
The patent inverts the conventional placement approach by positioning the RFIC module at the end portion of the radiation plate rather than at the center. This inversion, combined with the specific planar conductor configuration, enables the radiation plate to function effectively as a radiating element at the end position, resolving the contradiction between current flow efficiency and radiation efficiency.
Solution Approach 2:
The patent applies local quality by creating a specific configuration where the first and second planar conductors are positioned at defined locations relative to the RFIC module. This localized arrangement optimizes the current density distribution and electric field characteristics at the end portion of the radiation plate, enabling effective radiation from this specific location.
2Adaptability or versatility
If the RFIC module is disposed at the end portion of the radiation plate, then the adaptability for compact designs is improved, but the radiation performance deteriorates due to ineffective current flow
Solution Approach 1:
The patent creates a localized optimal configuration at the end portion of the radiation plate using specifically positioned first and second planar conductors. This local optimization ensures that despite the RFIC module being at the end portion (providing design flexibility), the current density and electric field are properly distributed to maintain effective radiation performance.
3Stability of the object's composition
If the planar conductors are positioned to connect at outer edges, then the electric field uniformity is improved, but the device complexity increases
Solution Approach 1:
The patent merges the functions of multiple conductors into a coordinated system where the first planar conductor, second planar conductor, inductor, and RFIC module work together as an integrated configuration. This merging achieves uniform electric field distribution while maintaining manageable complexity through functional integration.
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 configuration enables the radiation plate to act as an efficient radiating element, providing a proper voltage intensity distribution and enhancing the radiation efficiency of RFID tags and articles.
Implementation Method 1
the inductor's ends and RFIC's ends are connected to the outer edges of the planar conductors, providing a uniform electric field and inverted voltage phases, allowing efficient radiation when placed at the end portion of a radiation plate
Data Source
Figure 1
Figure 2A~2B
Figure 3
AI summary
An RFIC module (101) includes a first planar conductor (10), a second planar conductor (20) that faces the first planar conductor (10), an inductor (41) of which the both ends are connected between the first planar conductor (10) and the second planar conductor (20), and an RFIC (40) of which the both ends are connected between the first planar conductor (10) and the second planar conductor (20). In a plan view of the first planar conductor (10), the inductor (41) is adjacent to a first point that is a portion of an outer edge of the first planar conductor (10), and the RFIC (40) is adjacent to a second point of the outer edges of the first planar conductor (10), the second point being away from the first point.