Conductive Plate Antenna Layout for Thin Broadband Electronics
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Solution Overview
Problem
The challenge of reducing the thickness of electronic devices while maintaining space for electronic components and achieving broadband radiation characteristics for wireless communication is hindered by the use of laser direct structuring (LDS) antennas within the housing.
Innovation Solution
Utilizing a conductive plate supporting an electronic component as a first antenna radiator and a portion of the housing as a second antenna radiator, with electrical connections to a wireless communication module, to enhance broadband radiation characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If LDS antenna is disposed inside the housing, then wireless communication function is achieved, but device thickness cannot be reduced and component space is limited
Solution Approach 1:
The patent merges the antenna radiator function with the existing conductive plate that supports electronic components. The conductive plate is designed to serve dual purposes: supporting components and radiating electromagnetic waves for wireless communication. This eliminates the need for separate LDS antenna structures inside the housing, thereby reducing device thickness while maintaining wireless communication functionality.
Solution Approach 2:
The conductive plate is transformed into a multi-functional component that simultaneously performs mechanical support for electronic components and electromagnetic radiation for wireless communication. By making the support structure itself functional as an antenna radiator, the patent reduces the number of separate components needed, allowing for thinner device design without compromising communication capabilities.
2Reliability
If LDS antenna is disposed inside the housing, then wireless communication function is achieved, but space for electronic components is reduced
Solution Approach 1:
The patent combines the antenna radiator function with the conductive plate that supports electronic components. By making the support plate itself the radiator, the space that would have been occupied by separate antenna structures is eliminated, thereby increasing the available volume for electronic components while maintaining wireless communication functionality.
Solution Approach 2:
The conductive plate serves itself by performing dual functions: supporting electronic components and radiating electromagnetic waves. This self-service approach eliminates the need for dedicated antenna space, allowing the same structural element to fulfill multiple roles and thereby maximizing the space available for other electronic components.
3Device complexity
If conventional single antenna radiator is used, then simple structure is maintained, but broadband radiation characteristics cannot be achieved
Solution Approach 1:
The patent employs asymmetric coupling between the conductive plate and the housing conductive portion, where the two radiators have different geometries and electrical characteristics. This asymmetry enables broadband radiation by creating complementary radiation patterns that cover a wider frequency range, while the overall structure remains relatively simple as it uses existing conductive elements rather than adding complex multi-element antenna arrays.
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 allows for thinner electronic devices with improved radiation performance and component placement, addressing the limitations of LDS antennas.
Implementation Method 1
a first portion is electrically connected to the wireless communication module and a second portion is electrically connected to the first conductive portion
Data Source
AI summary
An example electronic device including an antenna includes a housing including a first conductive portion, a first support member disposed inside the housing, a printed circuit board disposed on one surface of the first support member and including a wireless communication module, an electronic component electrically connected to the printed circuit board, and a conductive plate supporting the electronic component. The conductive plate is constituted such that a first portion is electrically connected to the wireless communication module and a second portion is electrically connected to the first conductive portion, and thereby broadband radiation characteristics can be provided.