Chassis-Based NFC Antenna Using Conductive Materials
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Solution Overview
Problem
The existing NFC antennas in communication devices are often larger than other components and are typically placed on a separate substrate, which can occupy unnecessary space within the mechanical chassis, limiting design compactness and efficiency.
Innovation Solution
The integration of conductive materials like copper or aluminum within the mechanical chassis to form conductive paths that function as antennas, allowing for the use of chassis-based antennas for low-frequency communication modules such as NFC, RFID, and WPT, while separate antennas can be used for high-frequency modules like Bluetooth, GPS, and cellular.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a traditional separate substrate antenna is used for NFC, then the antenna can be easily manufactured and connected, but the antenna occupies excessive space within the mechanical chassis
Solution Approach 1:
The patent merges the antenna function with the mechanical chassis by making the chassis itself conductive through coating or material selection. The chassis serves dual purposes as both structural support and antenna element, eliminating the need for a separate substrate and reducing overall device space requirements.
Solution Approach 2:
The mechanical chassis is designed to perform multiple functions simultaneously: providing structural support, housing components, and acting as the antenna for NFC communication. This multi-functionality reduces the number of separate components needed and optimizes space utilization within the device.
2Ease of manufacture
If the antenna is placed on a separate substrate, then the antenna can be independently designed and manufactured, but unnecessary space is occupied within the mechanical chassis
Solution Approach 1:
The antenna design is merged with the chassis structure by applying conductive coatings or using conductive materials for the chassis. This integration eliminates the separate substrate and reduces the volume occupied by antenna components while maintaining manufacturability through standard chassis fabrication processes.
Solution Approach 2:
The patent changes the electrical parameters of the chassis by applying conductive coatings or selecting conductive materials, transforming the non-conductive chassis into a functional antenna element. This parameter change allows the chassis to serve dual purposes without requiring additional space for separate antenna components.
3Volume of stationary object
If a chassis-based antenna is used for low-frequency communication, then space requirements are reduced and design compactness is improved, but the conductive materials and construction methods must be carefully selected
Solution Approach 1:
The patent modifies the electrical conductivity parameters of the chassis by applying conductive coatings or using conductive materials. This parameter change enables the chassis to function as an antenna for low-frequency communication while maintaining compatibility with standard manufacturing processes.
Solution Approach 2:
The chassis is constructed using composite materials or coated with conductive materials to achieve the necessary electrical properties for antenna functionality. This approach allows the chassis to serve dual purposes as both structural element and antenna, reducing volume requirements while maintaining manufacturability through established composite material techniques.
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 approach enables a more compact design by utilizing the mechanical chassis as an antenna for low-frequency communication, reducing space requirements and improving the overall efficiency and power management within the device.
Implementation Method 1
The communication device can use these one or more conductive paths as one or more chassis based antennas for communication
Implementation Method 2
The mechanical chassis is at least partially constructed of one or more conductive materials, such as copper or aluminum to provide some examples, or combinations of conductive materials, to provide one or more conductive paths for the communication device
Data Source
AI summary
The present disclosure describes various chassis based antennas for a communication device. These various chassis based antennas can be integrated within a mechanical chassis of the communication device. The mechanical chassis is at least partially constructed of one or more conductive materials, such as copper or aluminum to provide some examples, or combinations of conductive materials, to provide one or more conductive paths for the communication device. The communication device can use these one or more conductive paths as one or more chassis based antennas for communication.