Waveform Dipole RFID Antenna for Longer Range Without Sub-Elements
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Solution Overview
Problem
Existing RFID antenna patterns require additional sub-elements, increasing manufacturing costs and complexity while aiming to enhance communication distance and directional range.
Innovation Solution
An antenna pattern featuring a dipole antenna with a band shape on a base material, where the dipole antenna has a connection portion in the middle for an IC chip and long sides formed in waveform shapes with concave and convex arrangements, eliminating the need for sub-elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sub-element is added to the dipole antenna to improve communication distance and directional range, then the antenna performance is improved, but the manufacturing cost and complexity increase
Solution Approach 1:
The patent applies curvature to the dipole antenna by forming its long sides in waveform shapes with multiple concave and convex portions instead of straight lines. This curved configuration increases the effective electrical length of the antenna, improving communication distance and directional range without requiring additional sub-elements. The waveform structure achieves enhanced antenna performance through geometric modification alone, resolving the contradiction between performance improvement and structural simplification.
2Reliability
If a sub-element is added to the dipole antenna to improve communication distance and directional range, then the antenna performance is improved, but the manufacturing cost increases
Solution Approach 1:
The patent uses waveform shaping of the dipole antenna's long sides to achieve enhanced communication performance without adding expensive sub-elements. The curved waveform structure with multiple concave and convex portions increases the effective antenna length, improving radio wave transmission and reception in multiple directions. This geometric approach eliminates the need for additional materials and assembly steps, thereby reducing manufacturing cost while maintaining improved antenna performance.
Solution Approach 2:
The patent transitions from a simple linear dipole antenna to a waveform configuration that utilizes spatial dimensionality more effectively. By arranging multiple concave and convex portions along the length of the antenna, the design creates a three-dimensional radiation pattern that improves directional range and communication distance. This dimensional enhancement achieves better performance without proportionally increasing material costs, as the improvement comes from geometric arrangement rather than additional components.
3Reliability
If a sub-element is added to the dipole antenna to improve communication distance and directional range, then the antenna performance is improved, but the manufacturing process becomes more complicated
Solution Approach 1:
The patent employs waveform shaping of the dipole antenna's long sides as a single integrated structure, eliminating the need to manufacture and assemble separate sub-elements. The continuous waveform configuration with multiple concave and convex portions can be produced in one manufacturing step using conventional techniques such as screen printing or etching on a substrate. This approach simplifies the manufacturing process while achieving improved communication distance and directional range through the curved geometry.
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 allows for easy and cost-effective manufacturing while increasing the communication distance and range of radio wave transmission and reception, without the need for sub-elements, thus improving communication efficiency.
Implementation Method 1
a radio frequency identification (RFID: individual identification by radio waves) technology for wirelessly writing and reading a large amount of information
Data Source
AI summary
An antenna pattern includes a base material, and a dipole antenna formed in a band shape, made of a conductive material on a front surface of the base material, and extending linearly. The dipole antenna has a connection portion positioned in the middle of the dipole antenna in a longitudinal direction, and to which an IC chip is connected. A pair of long sides of the dipole antenna positioned at both ends of the dipole antenna in a width direction and extending in the longitudinal direction of the dipole antenna are formed in waveform shapes in which a plurality of concave and convex shapes are arranged in the longitudinal direction.