Antenna Null Region Circuit Placement
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Solution Overview
Problem
In electronic devices, the limited space for antennas often leads to interference with nearby electronics due to radiation patterns, and shielding to prevent this increases manufacturing costs and degrades performance.
Innovation Solution
An antenna system is designed with a substrate that positions the antenna and circuit components in a way that the circuit components are placed within the null region of the antenna's radiation pattern, avoiding interference while maintaining compact packaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the antenna is positioned close to circuit components to save space, then device compactness is improved, but electromagnetic interference between the antenna and circuit components increases
Solution Approach 1:
The patent applies local quality by identifying and utilizing the null region (a specific local area) of the antenna's radiation pattern where electromagnetic field strength is minimal. Circuit components are positioned in this specific location on the substrate, allowing close proximity to the antenna while avoiding electromagnetic interference. This resolves the contradiction by making the local environment around the circuit components electromagnetically favorable while maintaining overall device compactness.
2Object-affected harmful factors
If shielding is added to prevent electromagnetic interference, then protection of circuit components is improved, but manufacturing cost and device complexity increase
Solution Approach 1:
The patent extracts the shielding function by removing the need for physical shielding structures entirely. Instead of adding shielding material around the circuit components, the solution extracts only the essential requirement (avoiding electromagnetic interference) and achieves it through intelligent spatial positioning within the null region of the radiation pattern. This eliminates the harmful factors without introducing the complexity of shielding structures.
3Object-affected harmful factors
If shielding material is used to enclose circuit components, then electromagnetic interference is reduced, but manufacturing cost and production time increase
Solution Approach 1:
The patent removes the manufacturing complexity associated with shielding by extracting only the positional requirement from the shielding concept. The circuit components are positioned in the null region during the standard substrate fabrication process, eliminating the need for separate shielding material deposition, enclosure construction, and assembly steps. This maintains ease of manufacture while achieving electromagnetic interference reduction.
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 solution allows for more efficient use of space and enhanced performance by minimizing electromagnetic interference between the antenna and circuit components without the need for additional shielding, thus reducing manufacturing costs and improving overall device performance.
Implementation Method 1
The antenna emits a radiation pattern with a null region
Data Source
AI summary
An antenna system comprises a substrate, an antenna positioned on the substrate, and a circuit component positioned on the substrate. The antenna is positioned on a first surface of the substrate and operable to emit a radiation pattern. The circuit component is positioned on the substrate in a null region of the radiation pattern. The thickness of portions of the substrate are modified to achieve a desired performance characteristic of the antenna.