Wi-Fi Extender Antenna Selection Method
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Solution Overview
Problem
Wi-Fi extenders with limited antenna space face challenges in realizing the advantages of vertical and horizontal polarized antennas simultaneously, leading to suboptimal signal quality in different environments.
Innovation Solution
An antenna selection method that compares signal qualities using a first vertical polarized antenna, a second vertical polarized antenna, and a horizontal polarized antenna, calculating signal quality parameters to select the best antenna combination for subsequent signal transmission and reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two vertical polarized antennas are used in a 2x2 MIMO system, then vertical polarization performance is improved, but horizontal polarization performance deteriorates
Solution Approach 1:
The patent implements dynamic antenna selection that switches between different antenna configurations (two vertical polarized antennas or one vertical and one horizontal polarized antenna) based on real-time signal quality measurements. This dynamic adaptation allows the system to optimize for vertical polarization when needed while maintaining capability for horizontal polarization scenarios, resolving the contradiction between specialized performance and environmental adaptability.
2Adaptability or versatility
If one vertical polarized antenna and one horizontal polarized antenna are used, then environmental adaptability is improved, but vertical polarization performance deteriorates
Solution Approach 1:
The system dynamically selects between antenna configurations based on measured signal quality. When vertical polarization performance is determined to be superior through signal quality comparison, the system selects the two vertical polarized antenna configuration, thereby maintaining high vertical polarization performance while still possessing the capability to switch to mixed polarization for environmental adaptability when needed.
Solution Approach 2:
The patent employs feedback mechanisms where signal quality parameters are continuously measured and compared for different antenna configurations. This feedback loop enables the system to identify when vertical polarization performance is superior and adjust antenna selection accordingly, ensuring optimal vertical polarization performance is maintained while preserving environmental adaptability through the ability to switch configurations.
3Volume of moving object
If the Wi-Fi extender size is reduced, then device compactness is improved, but the number of antennas that can be disposed is limited
Solution Approach 1:
The patent makes each antenna serve multiple functions by implementing dynamic selection between different polarization configurations. The same physical antennas can be configured to provide either two vertical polarized antenna performance or mixed vertical-horizontal polarization performance depending on environmental conditions. This multi-functionality allows the compact device to achieve the performance benefits of having more antennas without physically increasing the antenna count or device size.
Data Source
AI summary
The present invention discloses an antenna selection method, where the antenna selection method includes the steps of: utilizing a first vertical polarized antenna and a second vertical polarized antenna to obtain a first signal; calculating a first signal quality parameter according to the first signal; utilizing the first vertical polarized antenna and a horizontal polarized antenna to obtain a second signal; calculating a second signal quality parameter according to the second signal; and selecting one of the second vertical polarized antenna and the horizontal polarized antenna according to the first signal quality parameter and the second signal quality parameter, to be matched with the first vertical polarized antenna for subsequent signal transmission and reception.