Antenna Structure Dynamic Switching for Signal Sensitivity

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Solution Overview

Problem

Current antenna structures in electronic devices, such as mobile phones, face challenges with lower sensitivity and throughput due to a limited number of antennas, and external environmental influences can reduce receiving performance.

Innovation Solution

An antenna structure with multiple receiver paths and antennas, where a switch dynamically adjusts the connection between them based on signal strength and ranking order, ensuring that higher signal strength antennas are coupled with higher ranking receiver paths, maximizing receiving performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the number of antennas is increased to improve signal sensitivity and throughput, then receiving performance is improved, but device complexity and space occupation increase

Engineering Contradiction:
Improvesignal sensitivityVSAvoidantenna structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements dynamic switching between different antenna connections based on signal strength conditions. The switch dynamically reconfigures the connection between antennas and receiver paths according to real-time signal quality, allowing the system to adapt to changing environmental conditions without physically adding or removing antennas. This resolves the contradiction by providing variable receiving performance through configuration changes rather than structural changes.

Inventive Principle:
Principle #15Dynamics

2Reliability

If multiple antennas are used to improve receiving performance, then signal sensitivity increases, but the device occupies more space

Engineering Contradiction:
Improvereceiving performanceVSAvoiddevice space occupation
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The system uses dynamic connection switching to achieve multiple receiving performance levels with a fixed set of antennas. By reconfiguring which antennas connect to which receiver paths based on signal strength, the system effectively utilizes the available antenna array without requiring physical expansion of the device form factor.

Inventive Principle:
Principle #15Dynamics

3Device complexity

If the connection relationship between antennas and receiver paths is fixed, then device complexity is reduced, but adaptability to different signal conditions deteriorates

Engineering Contradiction:
Improveconnection configuration simplicityVSAvoidadaptability to signal conditions
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent implements dynamic reconfigurability through a switch that can change connection relationships between antennas and receiver paths based on real-time signal strength measurements. This allows the system to adapt to different signal conditions (such as varying antenna signal qualities) without requiring complex manual configuration, resolving the contradiction between simplicity and adaptability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system employs feedback mechanisms by measuring signal strength from different antenna connections and using this information to dynamically adjust the connection configuration. The signal strength measurements feed back to the switching control, enabling automatic optimization of the antenna-receiver path connections without user intervention.

Inventive Principle:
Principle #23Feedback

4Reliability

If real-time switching between antenna connections is implemented to improve signal sensitivity, then receiving performance is enhanced, but device complexity increases

Engineering Contradiction:
Improvesignal sensitivityVSAvoidswitching mechanism complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements dynamic switching capability that allows real-time reconfiguration of antenna connections based on signal strength conditions. The switch can dynamically change which antennas are connected to which receiver paths, enabling the system to optimize signal sensitivity by selecting the best available antenna connections without requiring complex additional hardware beyond the switching mechanism itself.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3648534B1Antenna structure and signal reception of electronic device
Publication Date: 2022.03.30 BEIJING XIAOMI MOBILE SOFTWARE CO LTD
  • EP3648534B1 patent drawingFigure 1~2
  • EP3648534B1 patent drawingFigure 3~4
  • EP3648534B1 patent drawingFigure 5~6

AI summary

The present disclosure relates to an antenna structure. The antenna structure includes a plurality of receiver paths that are ranked based on a preset manner to obtain a ranking order of each of the plurality of receiver paths; a plurality of antennas; and a switch disposed between the plurality of antennas and the plurality of receiver paths, wherein the switch is configured to change a connection relationship between the plurality of antennas and the plurality of receiver paths based on a signal strength of the plurality of antennas and the ranking order of the plurality of the receiver paths.