Display-Integrated Antenna Layout for Millimeter-Wave Angular Resolution
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Solution Overview
Problem
Existing millimeter-wave based non-contact sensing technologies face challenges in achieving high angular resolution without significantly increasing system overhead, primarily due to the need for more antenna elements, which leads to higher complexity and cost.
Innovation Solution
The integration of radiation structures on a display module with staggered groups and phase-compensated transmission lines, ensuring consistent electromagnetic wave phases and reduced phase differences across antenna units, thereby optimizing angular resolution without increasing element count.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of antenna elements is increased to achieve higher angular resolution, then the angular resolution is improved, but the system overhead and complexity increase
Solution Approach 1:
The patent applies asymmetry by implementing a staggered arrangement of radiation structures where odd-numbered and even-numbered columns are offset from each other in the vertical direction. This asymmetric configuration allows the antenna array to achieve higher angular resolution through the staggered geometry rather than simply increasing the total number of elements, thereby reducing system overhead while maintaining measurement precision
Solution Approach 2:
The patent transitions from a conventional planar array to a three-dimensional staggered configuration by offsetting radiation structures in the vertical dimension. This dimensional change enables the system to achieve superior angular resolution by utilizing spatial distribution in multiple dimensions rather than merely increasing element count in a single plane, thus improving measurement precision without proportionally increasing device complexity
2Measurement precision
If more antenna elements are used to improve angular resolution, then the angular resolution is improved, but the cost increases
Solution Approach 1:
The staggered asymmetric arrangement optimizes the spatial distribution of a limited number of radiation structures, allowing each element to contribute more effectively to angular resolution. This configuration achieves higher measurement precision with fewer antenna elements compared to conventional symmetric arrays, thereby reducing the quantity of substance required
3Measurement precision
If the number of antenna elements is increased to achieve higher angular resolution, then the angular resolution is improved, but the device complexity increases
Solution Approach 1:
The staggered asymmetric configuration creates a more efficient radiation pattern and element distribution that achieves superior angular resolution with fewer elements. This reduces antenna array complexity by eliminating the need for dense element packing while maintaining or improving measurement precision through optimized spatial geometry
Solution Approach 2:
By introducing vertical offset in the staggered arrangement, the patent utilizes three-dimensional spatial distribution to achieve higher angular resolution. This dimensional approach reduces antenna array complexity compared to conventional two-dimensional dense arrays, as the staggered configuration provides better element utilization and reduced mutual coupling
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 enhances angular resolution while maintaining system simplicity and reducing overhead, enabling effective non-contact human-computer interaction through millimeter-wave sensing.
Implementation Method 1
the transmission lines are configured such that electromagnetic waves fed into the radiation structures have a same phase
Data Source
AI summary
A display apparatus includes a display module and an antenna module, where the display module includes a display area and an edge area; the antenna module includes a plurality of antenna units including a plurality of radiation structures and a plurality of transmission lines; the radiation structures are integrated on the display module; the radiation structures on a same side of the display area are divided into a plurality of groups arranged side by side in a second direction, and each group includes multiple radiation structures arranged side by side in a first direction; the radiation structures in adjacent groups are staggered; and each of the radiation structures is connected to one of the transmission lines; where the transmission lines are configured such that electromagnetic waves fed into the radiation structures have a same phase.