Multi-Filter Inductor Shield Layout for Magnetic Flux Isolation
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Solution Overview
Problem
Wraparound of magnetic flux occurs between filters in electronic components with shielded filters, leading to coupling of inductors and deterioration of component characteristics.
Innovation Solution
The electronic component includes a first shield disposed between inductors and extending orthogonally, and a second shield outside the conductor group, which suppresses magnetic flux wraparound and improves isolation between filters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a shield is disposed between filters to secure isolation, then isolation between filters is improved, but magnetic flux wraparound occurs between the filters
Solution Approach 1:
The patent introduces a second shield extending in the first direction (orthogonal to the first shield's direction) to suppress magnetic flux wraparound. This adds a dimensional element to the shielding structure, creating a more comprehensive three-dimensional shield that blocks magnetic flux paths that wrap around the first shield, thereby resolving the contradiction between isolation improvement and magnetic flux wraparound prevention.
2Volume of moving object
If inductors are arranged close together to reduce component size, then device compactness is improved, but coupling between inductors occurs leading to characteristic deterioration
Solution Approach 1:
The patent introduces shields (first shield extending in the second direction and second shield extending in the first direction) as intermediary structures between the inductors. These shields act as magnetic flux barriers that prevent harmful magnetic coupling between closely spaced inductors, allowing the inductors to be positioned closer together without degrading filter characteristics, thus resolving the contradiction between compactness and reliability.
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
Enhances isolation between filters, thereby improving the overall characteristics of the electronic component by reducing magnetic flux interference.
Implementation Method 1
wraparound of magnetic flux can occur between the filters
Data Source
AI summary
An electronic component includes: an element body; a first inductor group including a fourth inductor constituting a first filter having a first pass band; a second inductor group including a seventh inductor constituting a second filter having a second pass band; a first shield disposed between the fourth inductor and the seventh inductor when viewed from a second direction and extending in a third direction orthogonal to a first direction in which the first inductor group and the second inductor group are arranged; and a second shield extending in the first direction, in which the second shield is disposed in a region outside the first inductor group when viewed from the second direction.