Display-Integrated Antenna Layout for Thin Multi-Band Electronics
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Solution Overview
Problem
Designing antennas for electronic devices is challenging due to the need for securing antenna radiation performance in limited spaces while accommodating various communication frequencies and functions, especially as devices become thinner and more feature-rich.
Innovation Solution
The electronic device incorporates a conductive pattern on a second display and a metal part connected to the wireless communication circuit, with a matching circuit to modify the resonant frequency, forming an antenna that improves radiation performance by using the device's structure to enhance signal transmission and reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of antennas is increased to support various communication techniques, then communication functionality is improved, but device space is reduced and design difficulty increases
Solution Approach 1:
The patent applies multi-functionality by enabling the second display's conductive pattern to serve dual purposes: as a display component and as an antenna radiator. This allows the same physical structure to fulfill multiple functions, reducing the need for separate antenna components and thereby saving device space while maintaining communication functionality.
Solution Approach 2:
The patent merges the display structure with the antenna structure by integrating the conductive pattern of the second display into the antenna system. The metal part and conductive pattern are electrically connected to form a combined structure that serves both display and wireless communication functions, effectively reducing the overall device footprint.
2Length of moving object
If the device is made thinner to improve portability, then device thickness is reduced, but antenna radiation performance deteriorates
Solution Approach 1:
The patent transitions from traditional planar antenna designs to a three-dimensional structure by utilizing the metal part extending from the second display and connecting to the camera module. This vertical dimensionality change allows the antenna to achieve better radiation performance within a thinner device profile by utilizing space in the Z-direction rather than only in the XY-plane.
Solution Approach 2:
The patent implements nesting by integrating the antenna structure within the existing device architecture. The metal part is positioned between the second display and the camera module, utilizing the space between these components effectively. This nested arrangement allows the antenna to function within the limited thickness of the device without interfering with other components.
3Adaptability or versatility
If more parts are added to accommodate various functions, then device functionality is improved, but design complexity increases
Solution Approach 1:
The patent reduces design complexity by making the second display's conductive pattern multi-functional. Instead of adding separate antenna components, the existing display structure is utilized for both display and wireless communication purposes. This approach maintains enhanced functionality while avoiding the complexity increases that would result from adding more separate parts.
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 antenna radiation performance by optimizing signal transmission and reception across various frequency bands, even in compact designs, ensuring effective communication coverage.
Implementation Method 1
a wireless communication circuit electrically connected to at least one of the metal part or the conductive pattern
Implementation Method 2
a matching circuit disposed on an electrical path electrically connecting at least one of the metal part or the conductive pattern to the wireless communication circuit
Data Source
AI summary
An electronic device includes: a housing forming an exterior of the electronic device; a first display; a second display facing in a direction different from that of the first display, wherein the second display may include a conductive pattern; a metal part electrically connected to the conductive pattern; and a wireless communication circuit electrically connected to at least one of the metal part or the conductive pattern.