Antenna Package With Resin-Filled Cavity And Metal Plates
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Solution Overview
Problem
Existing antenna devices face challenges in efficiently radiating or capturing electromagnetic waves due to design limitations and material constraints, which affect their performance and manufacturing processes.
Innovation Solution
The design incorporates a first layer with an antenna, a second metal layer featuring a laterally-closed cavity opposite the antenna, and additional metal plates for enhanced electromagnetic field management, with the cavity filled with resin and the plates made of materials like glass for improved structural and functional integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional antenna design is used, then the antenna can radiate or capture electromagnetic waves, but the efficiency and performance are limited due to design constraints and material properties
Solution Approach 1:
The patent implements nesting by placing the antenna within a cavity that is itself embedded in a multilayer package structure. The cavity contains the antenna and surrounding materials, which are then enclosed by additional layers including metal plates and dielectric materials, creating a nested configuration that optimizes electromagnetic performance while managing complexity through hierarchical organization
Solution Approach 2:
The patent employs composite materials by combining different materials with complementary properties: conductive metal layers for electromagnetic radiation, dielectric materials for insulation and field management, and resin for structural encapsulation. This multi-material approach enhances antenna performance by optimizing each material's contribution to the overall system
2Reliability
If additional metal layers and plates are added to enhance electromagnetic field management, then signal emission and reception improve, but manufacturing complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the antenna package into distinct functional layers: the antenna layer, cavity structure, metal plates, and encapsulation layers. Each segment performs a specific function and can be manufactured and positioned independently, then assembled through lamination and bonding processes, which manages manufacturing complexity through modular construction
Solution Approach 2:
The patent transitions from a two-dimensional antenna trace to a three-dimensional electromagnetic structure by adding vertical layers including metal plates positioned above and below the antenna plane. This dimensional expansion enhances electromagnetic field management and signal performance while the layered fabrication approach maintains manufacturing feasibility through standard PCB and packaging processes
3Stability of the object's composition
If the cavity is filled with resin and plates are precisely positioned, then structural stability improves, but manufacturing precision requirements increase
Solution Approach 1:
The patent implements preliminary action by pre-forming the cavity structure with integrated positioning features before inserting the antenna and surrounding materials. The metal plates are positioned and secured during the lamination process before final encapsulation, ensuring precise placement is achieved through pre-planned structural integration rather than post-assembly adjustment
Solution Approach 2:
The patent uses thin film dielectric layers and resin encapsulation to provide structural stability while accommodating precise plate positioning. These flexible yet rigidifying materials fill gaps and secure components in place, maintaining manufacturing precision through material-based positioning rather than relying solely on mechanical fixtures
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 configuration enhances the antenna's ability to channel and manage electromagnetic fields effectively, improving signal emission and reception while simplifying the manufacturing process by ensuring precise placement and structural stability.
Implementation Method 1
enhances the antenna's ability to channel and manage electromagnetic fields effectively
Data Source
AI summary
An electronic device includes a first layer with an antenna and a second metal layer that extends over the entire first layer. The second metal layer includes at least one laterally-closed cavity that is located vertically above the antenna. The cavity is filled, at least in part, by a resin material. A first plate supporting a second metal plate extends over the cavity with the second metal plate positioned vertically above the antenna. The first metal plate may be supported by a ledge within the cavity. Alternatively, the second metal plate is embedded in the resin filling the cavity, with the second metal plate positioned vertically above the antenna.