Metal Substrate Antenna for 5G Heat Dissipation
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Solution Overview
Problem
5G antenna devices operating in high-frequency bands face poor heat dissipation due to their large-scale and high-density designs, which can lead to unnecessary power loss and increased size, weight, and cost.
Innovation Solution
The antenna device incorporates a metal substrate with a coupler and filter structure, where the physical layer is directly mounted on the substrate, enhancing heat dissipation efficiency, and uses silver ink for conductive layers to improve electromagnetic interference shielding without the need for soldering, simplifying the manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a large-scale and high-density design is used to integrate numerous active modules inside the antenna, then the antenna can provide more functions (such as power amplifier module) and achieve higher data rates, but the heat dissipation becomes poor
Solution Approach 1:
The patent segments the antenna structure into multiple layers with alternating metal substrates and dielectric layers, creating a layered architecture that facilitates heat dissipation while maintaining functional integration. The physical layer is mounted on the metal substrate, which acts as a heat sink, dividing the heat generation and dissipation paths across different layers.
Solution Approach 2:
The patent utilizes the third dimension (vertical stacking) to integrate multiple functional modules (coupler, filter, antenna element, physical layer) across different layers. This vertical arrangement allows heat to dissipate through the metal substrate layers in the vertical dimension, solving the heat dissipation problem while maintaining high functional density.
2Reliability
If traditional manufacturing processes are used for the antenna device, then the production involves complex steps including soldering, but the manufacturing complexity and time increase
Solution Approach 1:
The patent replaces the mechanical soldering process with a direct mounting method where the physical layer is mounted on the metal substrate using conductive adhesive or solder paste applied through screen printing. This substitution eliminates the complex soldering steps while maintaining reliable electrical and mechanical connections.
Solution Approach 2:
The patent changes the manufacturing approach by using screen printing to apply conductive material directly to the substrate, altering the process parameters from traditional soldering (high temperature, precise alignment) to a more simplified deposition process that is easier to automate and control.
3Object-affected harmful factors
If conventional materials and methods are used for conductive layers, then the electromagnetic interference shielding may be adequate, but the manufacturing process becomes more complex and time-consuming
Solution Approach 1:
The patent merges the conductive layer formation with the screen printing process, combining multiple functions (conductive pattern creation, EMI shielding, and physical layer mounting) into a single manufacturing step. This integration eliminates separate processing steps and reduces overall manufacturing time.
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 effectively addresses heat dissipation issues, reduces power loss, and simplifies manufacturing while maintaining performance and reliability, resulting in a smaller, lighter, and cost-effective 5G antenna solution.
Implementation Method 1
the metal substrate 10, a coupler 12, a filter 14, an antenna element 16, and a physical layer 18. The coupler 12 is disposed on one side of the metal substrate 10
Implementation Method 2
uses silver ink for conductive layers to improve electromagnetic interference shielding
Data Source
AI summary
An antenna device with high component-density but enhanced means of dissipating working heat includes a metal substrate of a wireless device, a coupler, a filter, a conductive layer, and an antenna element. The coupler is disposed on one side of the metal substrate, the metal substrate serving as a heat sink. The filter is disposed on the coupler. The conductive layer covers the coupler and is electrically connected to the filter and ground. The antenna element is disposed on the other side of the metal substrate relative to the coupler, passes through the metal substrate and is electrically connected to the coupler and the filter. A method for manufacturing the antenna device is also disclosed.