Sliding Housing Antenna Connection for Stable Radiation
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Solution Overview
Problem
In slidable electronic devices, the radiation performance of antennas deteriorates due to overlapping conductive structures during slide-in and slide-out operations, affecting wireless communication reliability.
Innovation Solution
An electronic device with a physical connection structure that maintains designated radiation performance by electrically connecting conductive portions in the slide-in state, using an electrical connection structure to ensure consistent antenna performance across sliding operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the first housing and second housing are disposed to at least partially overlap in the slide-in state, then the device achieves a compact deformable structure, but the radiation performance of the antenna deteriorates due to intervention of counterpart conductive structure
Solution Approach 1:
The conductive material is fragmented through non-conductive portions to create segmented conductive portions in both housings. This segmentation allows the conductive structures to be divided into multiple independent segments that can be selectively connected or disconnected based on the sliding state, thereby resolving the contradiction between compact overlapping structure and antenna radiation performance.
Solution Approach 2:
The electrical connection structure is configured to selectively connect the second conductive portion to the first conductive portion based on the sliding state. In the slide-in state, the connection is established to maintain radiation performance, while in the slide-out state, the connection is disconnected to allow the antenna to function independently. This dynamic connection mechanism resolves the contradiction by adapting the electrical connectivity to the device's operational state.
2Strength
If conductive portions are fragmented through non-conductive portions for stiffness reinforcement and attractive appearance, then the device achieves improved structural properties and aesthetics, but the radiation performance of the antenna is affected due to the fragmented conductive structure
Solution Approach 1:
The conductive material is intentionally fragmented through non-conductive portions to create segmented conductive portions. This segmentation provides both structural benefits (stiffness reinforcement and attractive appearance with visible patterns) and functional benefits (selective electrical connection capability). The segmented structure allows the antenna to maintain radiation performance by enabling controlled electrical connection between segments when needed.
Solution Approach 2:
The fragmented conductive portions serve multiple functions: they provide structural stiffness reinforcement, create attractive visual patterns on the device surface, and enable selective electrical connection for antenna operation. This multi-functionality resolves the contradiction by making the fragmented structure beneficial for both aesthetics/strength and radiation performance.
3Adaptability or versatility
If the second housing slides in or slides out to vary the display area, then the device achieves deformable functionality, but the radiation performance of the antenna becomes non-constant and may deteriorate
Solution Approach 1:
The electrical connection structure dynamically adjusts the electrical connection between conductive portions based on the sliding state of the second housing. When the display area needs to be varied through sliding, the connection structure automatically establishes or disconnects the electrical path to maintain optimal antenna radiation performance in each state, thereby resolving the contradiction between deformable functionality and performance consistency.
Solution Approach 2:
The system implements a feedback mechanism where the sliding state of the second housing is detected, and the electrical connection structure responds by establishing or disconnecting the connection between conductive portions accordingly. This feedback loop ensures that the antenna radiation performance is maintained at optimal levels regardless of the display area configuration, resolving the contradiction between adaptability and performance consistency.
Data Source
AI summary
An electronic device is provided. The electronic device includes a first housing including a first conductive portion, a second housing slidably coupled to the first housing at a designated round-trip distance and configured to include a second conductive portion overlapping at least a part of the first conductive portion in a slide-in state, a wireless communication circuit disposed in the electronic device and electrically connected to the first conductive portion, and at least one electrical connection structure disposed in a second space of the second housing and configured to electrically connect the second conductive portion to the first conductive portion in the slide-in state. The wireless communication circuit may be configured to transmit and/or receive a radio signal in at least one frequency band through the first conductive portion and the second conductive portion in the slide-in state.