RF Module Shield Wall Structure for Stable Electromagnetic Isolation
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Solution Overview
Problem
The self-standing ability of the shield wall in existing radio frequency modules is insufficient, which affects the stability and performance of the module.
Innovation Solution
A radio frequency module design that includes a mounting board with first and second electronic components, and first and second metal members disposed on the mounting board. The metal members are grounded and have recessed portions that interlock, allowing them to support each other and improve their self-standing ability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a shield wall is provided between adjacent components in a radio frequency module, then electromagnetic isolation between components is improved, but the self-standing ability of the shield wall is insufficient
Solution Approach 1:
The shield wall is divided into multiple segments (first shield wall portion and second shield wall portion) that are positioned at different heights. This segmentation allows each portion to be supported by different structural elements, improving the overall self-standing ability while maintaining electromagnetic isolation functionality.
Solution Approach 2:
The shield wall structure is extended into the vertical dimension with portions at different heights. The first shield wall portion is positioned at a first height and the second shield wall portion at a second height, creating a multi-level structure that enhances stability while preserving the isolation function.
2Ease of manufacture
If the shield wall structure is simplified for ease of manufacture, then production cost is reduced, but the self-standing ability and stability of the shield wall deteriorates
Solution Approach 1:
The shield wall is segmented into multiple portions that can be manufactured separately and then assembled. This segmentation enables simplified manufacturing of individual components while the assembled structure achieves the required self-standing ability through the distributed support configuration.
Solution Approach 2:
A support structure acts as an intermediary element between the mounting board and the shield wall portions. This support structure provides the necessary mechanical assistance to enable the shield wall to stand independently while maintaining a relatively simple overall manufacturing process.
Data Source
AI summary
The radio frequency module includes a mounting board, a first metal member, and a second metal member. The first metal member and the second metal member are disposed on the mounting board. The first metal member has a longitudinal direction along a first direction in plan view from a thickness direction of the mounting board. The second metal member has a longitudinal direction along a second direction in plan view from the thickness direction of the mounting board. The first or second metal member is placed between a first electronic component and a second electronic component. The first metal member has a first recessed portion. The second metal member has a through hole and a second recessed portion. The through hole passes through the second metal member in the direction intersecting with the second direction. The second recessed portion faces and is in contact with the first recessed portion.