Antenna-like Matching Component for Wideband Impedance
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Solution Overview
Problem
Conventional antenna designs face challenges in achieving wideband impedance matching due to narrow bandwidth, which limits power transfer and frequency support, and is sensitive to environmental interference, with passive matching circuits becoming inefficient and complex, and active solutions increasing cost and complexity.
Innovation Solution
A new matching scheme utilizing an antenna-like component with conductive patches and parasitic elements on a substrate, allowing for flexible impedance matching over a wide frequency range by varying the shapes and dimensions of the conductive elements, similar to a monopole antenna, to achieve optimal impedance matching for multi-band or wideband antennas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the antenna's radiator becomes smaller and more integrated within the system, then the antenna size is reduced, but the bandwidth for a constant return loss becomes narrower
Solution Approach 1:
The matching component is divided into multiple conductive patches (first, second, third, and fourth patches) arranged in a specific configuration. Each patch contributes to the overall impedance matching function, allowing the system to achieve wideband performance despite the compact antenna size. The segmented structure enables independent optimization of each patch's contribution to different frequency ranges.
Solution Approach 2:
The matching component utilizes a two-dimensional arrangement of conductive patches on a substrate to achieve three-dimensional electromagnetic field control. By varying the shapes, sizes, and positions of patches in the planar domain, the invention achieves wideband impedance matching without increasing the physical volume of the antenna system.
2Adaptability or versatility
If a passive matching circuit is used to achieve impedance matching, then the bandwidth can be improved, but the circuit becomes inefficient and complex with many components
Solution Approach 1:
The invention merges the matching function with the antenna structure itself by using conductive patches that serve both as radiating elements and impedance matching components. This integration eliminates the need for separate passive matching circuits with multiple discrete components, achieving wideband performance with a single integrated structure.
Solution Approach 2:
The conductive patches in the matching component serve multiple functions simultaneously: they act as radiating elements for the antenna, provide impedance matching across wide bandwidth, and can be configured to support multiple frequency bands. This multi-functionality replaces what would traditionally require separate dedicated components for each function.
3Adaptability or versatility
If an active matching solution is used, then flexibility is improved, but cost and complexity increase along with non-linearity and power consumption
Solution Approach 1:
The matching component achieves impedance matching passively through its inherent electromagnetic properties and geometric configuration. The conductive patches are designed with specific shapes and arrangements that automatically provide the required matching characteristics across the desired bandwidth without requiring active control circuits, power consumption, or complex adjustment mechanisms.
4Device complexity
If the antenna bandwidth is narrow, then the system is easier to design, but the system becomes sensitive to environmental interference such as human hand, head, or metal objects
Solution Approach 1:
The matching component uses multiple segmented conductive patches that can be independently optimized to provide robust impedance matching across wide bandwidth. This segmentation allows the system to maintain stable performance despite environmental variations, as the distributed structure reduces sensitivity to localized interference compared to a single-element design.
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 approach enables efficient impedance matching across multiple frequency bands with reduced component count, improved robustness against environmental interference, and flexibility in design, enhancing power transfer and system performance.
Implementation Method 1
A new matching scheme utilizing an antenna-like component with conductive patches and parasitic elements on a substrate, allowing for flexible impedance matching over a wide frequency range
Data Source
AI summary
An antenna-like matching component is provided, comprising one or more conductive portions formed on a substrate. Shapes and dimensions of the one or more conductive portions are determined to provide impedance matching for one or more antennas coupled to the matching component.