Wearable Antenna Array Phase Control for Stable Motion Communication

Solution Overview

Problem

Wearable devices with single antenna modules experience poor communication effects due to changing device locations during activities with large movements, affecting radiation and communication efficiency.

Innovation Solution

Incorporating a dual antenna module system with an active first antenna module and a passive second antenna module, where the phase difference between the modules is adjustable, forming an antenna array with adjustable directivity patterns to enhance radiation and communication efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single antenna module is used in wearable devices, then the device structure remains simple, but the communication effect deteriorates when the device location changes during activities with large movements

Engineering Contradiction:

Improveantenna module structureVSAvoidcommunication effect

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent combines multiple antenna modules (first antenna module on wearable body and second antenna module on wearable band) into a unified antenna array system. This merging allows the system to leverage the radiation characteristics of multiple antennas to maintain stable communication effects even when the wearable device location changes during activities with large movements.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent implements adjustable phase difference between antenna modules, enabling dynamic adjustment of the directivity pattern of the antenna array. This dynamic capability allows the system to adapt to changing positions and orientations of the wearable device during movement, maintaining optimal communication performance.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If the antenna location changes during activities with large movements, then the wearable device provides movement freedom, but the radiation effect and communication performance deteriorate

Engineering Contradiction:

Improvemovement freedomVSAvoidradiation effect

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent implements adjustable phase difference between antenna modules, enabling dynamic adjustment of the directivity pattern of the antenna array. This dynamic capability allows the system to adapt to changing positions and orientations of the wearable device during movement, maintaining optimal communication performance.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the phase difference parameter between antenna modules to adjust the directivity pattern. By modifying this electrical parameter, the system can redirect the maximum beam away from the ground and optimize radiation effect without mechanical adjustment, preserving movement freedom.

Inventive Principle:

Principle #35Parameter changes

3Reliability

If an antenna array with adjustable directivity pattern is implemented, then the radiation effect improves, but the device complexity increases

Engineering Contradiction:

Improveradiation effectVSAvoidantenna module structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple antenna modules (first antenna module on wearable body and second antenna module on wearable band) into a unified antenna array system. This merging allows the system to leverage the radiation characteristics of multiple antennas to maintain stable communication effects even when the wearable device location changes during activities with large movements.

Inventive Principle:

Principle #5Merging (Combining)

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 adjustable phase difference between the first and second antenna modules improves the radiation effect by directing the maximum beam away from the ground, enhancing communication performance during dynamic movements.

Implementation Method 1

a phase difference between the first antenna module and the second antenna module is adjustable, so that a directivity pattern of an antenna array is adjustable

Methodology Applied

Scientific EffectPhase difference adjustment:

Implementation Method 2

affecting a radiation effect of the antenna on the wearable device, and thus affecting a communication effect of the wearable device

Methodology Applied

Scientific EffectElectromagnetic radiation:

Data Source

PatentUS20240186698A1Wearable device and method for controlling wearable device

Publication Date: 2024.06.06 VIVO MOBILE COMM CO LTD

AI summary

This application discloses a wearable device and a method for controlling the wearable device. The wearable device includes a wearable body, a wearable band, a first antenna module and a second antenna module, where the wearable body is connected to the wearable band; the first antenna module is disposed on the wearable body, and the second antenna module is disposed on the wearable band; and a phase difference between the first antenna module and the second antenna module is adjustable, so that a directivity pattern of an antenna array is adjustable, where the antenna array includes the first antenna module and the second antenna module; and the first antenna module is an active antenna module, and the second antenna module is a passive antenna module.