Antenna Facing Portion Adjustment via Segmented Holding Member
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Solution Overview
Problem
Antennas produced using printed substrates face challenges in adjusting variations in characteristics due to manufacturing variations, making it difficult to achieve desired performance without additional components like matching circuits or remaking the substrate.
Innovation Solution
An antenna design with a main portion on a substrate and a separate facing portion, where the facing portion is held by a conductive holding member to maintain a fixed relative position, allowing for easy adjustment and replacement to stabilize antenna characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the facing portion is integrated with the substrate, then the structure is simpler and manufacturing is easier, but antenna characteristics cannot be easily adjusted when manufacturing variations occur
Solution Approach 1:
The antenna is divided into two separate parts: the substrate with the antenna main portion and the facing portion. This segmentation allows the facing portion to be independently adjusted or replaced to compensate for manufacturing variations in the substrate, while the substrate itself can be manufactured using standard printed circuit board processes.
2Adaptability or versatility
If the facing portion is separate from the substrate, then antenna characteristics can be easily adjusted by replacement, but the structure becomes more complex and positioning may vary
Solution Approach 1:
The antenna is divided into two separate parts: the substrate with the antenna main portion and the facing portion. This segmentation allows the facing portion to be independently adjusted or replaced to compensate for manufacturing variations in the substrate, while the substrate itself can be manufactured using standard printed circuit board processes.
3Adaptability or versatility
If the facing portion is separate from the substrate, then antenna characteristics can be easily adjusted, but positional displacement between facing portion and antenna main portion may occur
Solution Approach 1:
A holding member is introduced as an intermediary component between the substrate and the facing portion. This holding member has a holding portion that attaches to the substrate and another holding portion that holds the facing portion, thereby mediating the connection and ensuring precise positional alignment while still allowing for adjustment of antenna characteristics.
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 enables easy adjustment of antenna characteristics by replacing the facing portion, preventing positional displacement issues and improving radiation efficiency, especially at high frequencies.
Implementation Method 1
The first facing portion and the second facing portion are held by the holding member so as to be located apart from each other. The first facing portion has a first principal portion and a first connected portion which extends from the first principal portion and which is connected to the first end portion. The second facing portion has a second principal portion facing the first principal portion and a second connected portion which extends from the second principal portion and which is connected to the second end portion.
Data Source
AI summary
An antenna has an antenna main portion formed on a substrate and a facing portion separate and distinct from the substrate. The antenna main portion has a ring shape with a split and has a first end portion and a second end portion which form the split. The facing portion has a holding member, a first facing portion made of conductive material and a second facing portion made of the conductive material. The first facing portion and the second facing portion are held by the holding member so as to be located apart from each other. The first facing portion has a first principal portion and a first connected portion connected to the first end portion. The second facing portion has a second principal portion facing the first principal portion and a second connected portion connected to the second end portion.