Stationary Antenna Jacket for GPS and Wi-Fi Stability
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Solution Overview
Problem
The integration of telescopic antennas with GPS and Wi-Fi antennas in mobile terminals often results in compromised communication performance due to resonance frequency deviations, leading to suboptimal user experience and increased device size, as the telescopic antenna's extension alters the surrounding metal environment, affecting the GPS and other antennas' functionality.
Innovation Solution
A hollow tube antenna jacket is used to house the telescopic antenna, with a stopper base and antenna base configuration that includes a ring-shaped protrusion and elastic sleeve to maintain the antenna jacket's position, preventing movement and maintaining a stable metal environment, allowing the telescopic antenna to extend without impacting the GPS and Wi-Fi antennas' performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the telescopic antenna is extended, then the antenna functionality is improved, but the surrounding metal environment of the GPS antenna changes causing resonance frequency deviation
Solution Approach 1:
The antenna system is divided into separate functional modules: the telescopic antenna element, the GPS antenna, and the antenna jacket. This segmentation allows the telescopic antenna to extend and retract independently while the GPS antenna maintains its position and surrounding environment, resolving the frequency deviation issue while preserving both antenna functionalities
Solution Approach 2:
The antenna jacket serves as an intermediary structure that provides a stable reference frame for the GPS antenna. By fixing the GPS antenna to the antenna jacket rather than directly to the mobile terminal housing, the design isolates the GPS antenna from environmental changes caused by telescopic antenna movement, maintaining communication performance
2Reliability
If the telescopic antenna and GPS antenna are disposed separately to avoid interference, then communication performance is maintained, but the device size increases
Solution Approach 1:
The telescopic antenna is nested within the antenna jacket, which itself is integrated into the mobile terminal housing. The GPS antenna is positioned on the antenna jacket, creating a compact nested arrangement where multiple antenna functions coexist in a limited space without requiring separate dedicated areas, thus maintaining small device size while avoiding interference
3Volume of moving object
If the telescopic antenna and other antennas share the same space, then device size is reduced, but the telescopic antenna extension alters the metal environment causing frequency deviation
Solution Approach 1:
The antenna jacket introduces a new spatial dimension and reference plane for antenna positioning. By mounting the GPS antenna on the antenna jacket rather than directly on the terminal housing, the design creates a stable electromagnetic environment that is decoupled from the telescopic antenna's extension motion, maintaining frequency stability while enabling compact integration
Data Source
AI summary
An antenna includes a telescopic antenna and an antenna jacket, where the telescopic antenna extends from a side opening and an exposed part of the telescopic antenna is configured to rotate outside the antenna jacket. The antenna and any one or more antennas of a GPS antenna, a Wi-Fi antenna, and a diversity antenna form a combination antenna. The GPS antenna and other antennas are disposed in an area adjacent to the antenna jacket.