Antenna System Dynamic Switching for Radiation Pattern Stability
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Solution Overview
Problem
Wireless communication devices experience weakened communication capacity and dead angles due to varying environmental conditions affecting the radiation pattern of multi-antenna systems, such as human proximity, distance from base stations, direction deviations, and shielding effects from room walls.
Innovation Solution
An antenna system comprising multiple antennas, a switching unit with switches that can be conducting or non-conducting, a communication unit, and a control unit that compares reference value groups with thresholds to determine if pre-determined conditions are met, and outputs restarting instructions to adjust the switching unit's state, ensuring optimal radiation patterns and wireless transmission quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the antenna system operates in a fixed environment, then the radiation pattern is stable, but the communication capacity deteriorates when environmental conditions change (human proximity, distance from base station, direction deviation, shielding effects)
Solution Approach 1:
The patent implements dynamic switching between multiple antennas based on real-time reference value comparisons. The switching unit changes the conducting state of switches to select different antennas or antenna combinations, allowing the radiation pattern to adapt dynamically to environmental changes such as human proximity, distance from base station, direction deviation, and shielding effects, thereby maintaining communication capacity while preserving radiation pattern stability through controlled reconfiguration
Solution Approach 2:
The control unit monitors reference values from the communication unit and compares them against thresholds to determine when environmental conditions have changed. When the reference value group does not conform to the pre-determined condition, the system changes operational parameters by restarting the switching unit to select different antenna configurations, thus adapting the radiation pattern to new environmental conditions while maintaining reliable communication
2Productivity
If the switching unit is restarted frequently to adapt to environmental changes, then the communication capacity is maintained, but the system stability deteriorates due to frequent state changes
Solution Approach 1:
The patent employs a feedback mechanism where the communication unit continuously provides reference values to the control unit, which compares these values against predetermined thresholds. This feedback loop allows the system to detect environmental changes and trigger switching unit restarts only when necessary (when reference values do not conform to pre-determined conditions), maintaining communication capacity while avoiding unnecessary frequent state changes that would compromise system stability
Solution Approach 2:
The control unit uses pre-determined conditions and thresholds established beforehand to guide switching decisions. By having predetermined criteria for when to restart the switching unit, the system can make stable, predetermined decisions based on reference value comparisons rather than reacting impulsively to every environmental fluctuation, thus maintaining system stability while ensuring communication capacity is maintained when truly needed
Data Source
AI summary
An antenna system includes: a plurality of antennas; a switching unit, having a plurality of switches, wherein each of the plurality of switches and the corresponding antenna are in a conducting state or in a non-conducting state; a communication unit, connected with each of the plurality of switches of the switching unit, and coupled with the antennas, wherein the communication unit receives a reference value group of the corresponding antenna from the switch in the conducting state; and a control unit, connected with the switching unit and the communication unit, wherein the control unit receives the reference value group from the communication unit, and compares the reference value group with an threshold, to determine whether the reference value group conforms to a pre-determined condition or not, and outputs a restarting instruction to restart the switching unit when the reference value group does not satisfy the pre-determined condition.