Metal Frame Antenna Layout for Distance and Angle Sensing
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Solution Overview
Problem
Existing electronic devices face challenges in accurately determining the distance and angle of another device due to the need for multiple antennas, which can be difficult to integrate in limited spaces and impose strict layout requirements, especially in small mobile terminals.
Innovation Solution
The use of a frame antenna made of metal as part of the electronic device's frame body, which allows for radiation signals to be transmitted and received on both sides of the frame, enabling distance and angle determination without the need for multiple patch antennas, and incorporating a processing chip to process these signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple patch antennas are used for distance and angle determination, then measurement precision is improved, but device complexity increases and space requirements increase
Solution Approach 1:
The patent merges the frame structure with antenna functionality, where the frame itself serves as the antenna element. This integration eliminates the need for separate patch antennas while maintaining the capability for distance and angle determination through signal transmission and reception between devices.
Solution Approach 2:
The frame antenna serves multiple functions: it provides structural support as part of the device frame while simultaneously functioning as the antenna for wireless communication and positioning. This multi-functionality reduces the number of separate components needed.
2Measurement precision
If multiple patch antennas are used for distance and angle determination, then measurement precision is improved, but the area occupied by antennas increases
Solution Approach 1:
The frame structure is merged with the antenna element, allowing the antenna to be formed by the frame itself rather than requiring separate patch antenna components. This integration significantly reduces the area occupied by antenna elements while maintaining positioning functionality.
3Measurement precision
If strict antenna layout requirements are imposed, then measurement precision is improved, but ease of manufacture deteriorates
Solution Approach 1:
The frame and antenna are merged into a single integrated structure, eliminating the need for separate antenna components and complex layout arrangements. This integration simplifies the manufacturing process while maintaining the capability for accurate distance and angle determination.
4Measurement precision
If multiple antennas are used for positioning, then measurement precision is improved, but the device becomes less adaptable to different postures
Solution Approach 1:
The frame antenna provides omnidirectional signal transmission and reception capabilities, allowing the device to maintain positioning functionality regardless of its posture or orientation. This universal functionality enhances adaptability to different device postures while maintaining positioning accuracy.
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 solution allows for accurate distance and angle measurement with reduced antenna requirements, minimizing space constraints and enabling flexible device posture during positioning, thus facilitating miniaturization and improved signal coverage.
Implementation Method 1
A target member of the frame body is made of metal and used as a frame antenna. The frame antenna is at least capable of transmitting and receiving radiation signals of a target frequency band.
Data Source
AI summary
An electronic device includes a frame body and a processing chip. A target member of the frame body is made of metal and used as a frame antenna. The frame antenna is at least capable of transmitting and receiving radiation signals of a target frequency band. A radiation space of the radiation signals transmitted by the frame antenna at least includes a first radiation space located on one side of a first surface of the frame body and a second radiation space located on one side of a second surface of the frame body. The first surface and the second surface are non-intersecting. The target member connects the first surface and the second surface. The processing chip is configured to determine a distance between the target device and the electronic device based on the radiation signals transmitted by the target device received by the frame antenna.