Retractable Antenna Assemblies for Adjustable Wireless Isolation
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Solution Overview
Problem
Existing wireless data terminals have fixed antenna distances and isolation, limiting their applicability to a single application scenario, and there is a need for adjustable antenna isolation to accommodate different usage scenarios.
Innovation Solution
A wireless data terminal with retractable antenna assemblies that can extend or retract to adjust the distance between antennas, allowing for variable isolation based on application requirements, and a control system to manage this adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the antenna assemblies are fixed at a fixed distance, then the structure is simple and manufacturing is easy, but the antenna isolation is fixed and applicable only to a single application scenario
Solution Approach 1:
The patent applies the dynamics principle by making the antenna assemblies movable rather than fixed. The drive assembly enables the first and second antenna assemblies to extend or retract along the first and second directions, dynamically adjusting the distance between them. This allows the antenna isolation to be changed based on different application scenarios, resolving the contradiction between fixed structure simplicity and adaptability requirements.
2Adaptability or versatility
If the antenna assemblies are extended to increase isolation, then the antenna isolation improves, but the volume occupied by the terminal increases
Solution Approach 1:
The drive assembly enables dynamic adjustment of antenna assembly positions, allowing the terminal to extend antenna assemblies when high isolation is needed and retract them when compact size is needed. This dynamic capability resolves the contradiction by providing both high isolation performance and compact form factor at different times based on application requirements.
3Volume of moving object
If the antenna assemblies are retracted to reduce volume, then the terminal has good appearance effect and reduced volume, but the antenna isolation decreases
Solution Approach 1:
The movable antenna assemblies driven by the drive assembly allow the terminal to retract antennas for compact appearance and extend them when isolation performance is required. This dynamic adjustment capability enables the terminal to optimize both volume and antenna isolation based on different usage scenarios, resolving the contradiction between compact form factor and isolation performance.
Data Source
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AI summary
This application provides a wireless data terminal and a wireless data terminal control system. The wireless data terminal includes a housing, a drive assembly, a first antenna assembly, and a second antenna assembly. The drive assembly can drive the first antenna assembly and the second antenna assembly to extend or retract to move in different directions between a first location and a second location. When the wireless data terminal does not need to be used or high isolation between antennas is not required, the drive assembly may drive the antenna assembly to retract to the first location, so that a volume occupied by the wireless data terminal can be reduced while an antenna isolation requirement is met. When high isolation between the antennas is required, the drive assembly may drive the antenna assembly to extend to the second location, so that isolation between the antennas is increased.