Dual-Layer PCB Antenna Structure for Orientation-Stable Positioning
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Solution Overview
Problem
Existing electronic devices face challenges in securing the quality and accuracy of positioning and communication performance due to varying orientations and polarization characteristics of signal sources.
Innovation Solution
The electronic device incorporates a dual-layered antenna structure with first and second antenna elements generating circular polarization, connected via conductive vias through dielectric layers, allowing for enhanced communication performance and accurate positioning regardless of device orientation or signal polarization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single polarization antenna is used, then the device complexity is reduced, but the positioning accuracy deteriorates when facing various orientations or polarization characteristics
Solution Approach 1:
The patent transitions from a single-layer antenna structure to a multi-layer antenna structure, adding the vertical dimension (z-axis) to the antenna element arrangement. Multiple antenna elements are positioned at different heights and orientations within the housing, enabling the system to receive signals with various polarization characteristics regardless of device orientation, thereby maintaining positioning accuracy without excessive complexity increase.
Solution Approach 2:
The antenna structure is designed to perform multiple functions: receiving signals with different polarization characteristics (horizontal, vertical, circular), supporting various device orientations, and maintaining positioning accuracy across all scenarios. The multi-element, multi-layer configuration enables a single antenna system to handle diverse signal reception requirements that would otherwise require multiple separate antenna systems.
2Measurement precision
If multiple antenna elements with different orientations are added, then the positioning accuracy is improved, but the device complexity increases
Solution Approach 1:
Multiple antenna elements with different orientations and polarization characteristics are merged into a single integrated antenna structure within one housing. The elements are positioned at different locations and angles but function as a unified system, reducing the need for separate antenna assemblies while achieving improved positioning accuracy through diverse signal reception capabilities.
Solution Approach 2:
The patent utilizes the vertical dimension (z-axis) by positioning antenna elements at different heights within the housing. This three-dimensional arrangement allows elements to be oriented in multiple directions (horizontal, vertical, inclined) without increasing the horizontal footprint, thereby improving positioning accuracy while controlling device complexity through efficient spatial utilization.
3Manufacturing precision
If the antenna structure is optimized for specific orientations, then the manufacturing precision is improved, but the adaptability to various orientations deteriorates
Solution Approach 1:
Each antenna element is designed with specific local characteristics (orientation, polarization, position) optimized for its particular function. Elements are strategically positioned and oriented to capture signals from different directions and polarization states. This local optimization of each element's quality contributes to the overall system's adaptability to various device orientations and signal characteristics.
Solution Approach 2:
The antenna structure employs a composite configuration combining multiple elements with different orientations, polarizations, and positions within a single housing. This composite structure integrates diverse antenna types (horizontal, vertical, circular polarization elements) to create a unified system that maintains manufacturing precision for each element while achieving broad adaptability to various orientations and signal characteristics.
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
The dual-layered antenna structure enhances communication performance and ensures accurate positioning by stabilizing signal reception across various orientations and polarization characteristics.
Implementation Method 1
the multiple first antenna elements are configured to generate circular polarization, and the multiple second antenna elements are configured to generate circular polarization
Data Source
AI summary
According to an embodiment of the present disclosure, an electronic device may include: a housing; an antenna structure positioned in the housing and including a printed circuit board, multiple first antenna elements, multiple second antenna elements, and multiple electrical paths; and a wireless communication circuit electrically connected to the multiple first antenna elements through the electrical paths. The antenna structure may include antenna elements arranged for enhancing a communication performance and/or may be capable of securing the quality and the accuracy of the positioning for the signal source even though there are various directions or orientations where the electronic device faces, or various polarization characteristics of a signal transmitted from the signal source.