Rollable UWB Antenna Layout Across Housing and Flexible Display
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Solution Overview
Problem
Rollable electronic devices face challenges in accommodating multiple UWB antennas due to limited space, making it difficult to provide positioning-based services effectively.
Innovation Solution
The electronic device incorporates a housing with multiple UWB antennas, including some disposed within the flexible display, allowing for efficient signal transmission and reception in both compact and extended states through strategic electrical connections and contact structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If a flexible display is positioned inside the housing in a rolled state, then the device can provide a large display area when extended, but the space available for disposing multiple UWB antennas is reduced
Solution Approach 1:
The patent transitions from a two-dimensional planar antenna arrangement to a three-dimensional spatial distribution by placing antennas on both the first housing and second housing. This dimensional change allows multiple UWB antennas to be disposed without requiring additional space within the single housing volume, thereby resolving the contradiction between display area and antenna disposal space.
Solution Approach 2:
The patent divides the antenna disposal space into two separate housings (first housing and second housing). By segmenting the housing structure, the device can accommodate multiple UWB antennas distributed across different spatial locations, effectively increasing the total antenna disposal space without compromising the flexible display area.
2Measurement precision
If multiple UWB antennas are disposed in the housing, then positioning accuracy and wireless communication functionality are improved, but the device complexity increases
Solution Approach 1:
The patent implements a contact structure that serves multiple functions: it mechanically connects the first housing and second housing, and simultaneously establishes electrical connection between the UWB antenna in the second housing and the processor in the first housing. This multi-functionality reduces device complexity by eliminating the need for separate connection mechanisms.
Solution Approach 2:
The contact structure acts as an intermediary element that bridges the gap between the two housings. It provides both mechanical support and electrical connectivity, allowing the UWB antenna in the second housing to communicate with the processor in the first housing without requiring complex wiring or connection protocols.
3Adaptability or versatility
If UWB antennas are distributed across both housings with electrical connections through contact structures, then positioning services can be provided in both rolled and extended states, but the electrical connection reliability may be compromised due to mechanical movement
Solution Approach 1:
The patent employs a dynamic contact structure that can accommodate mechanical movement between the first housing and second housing. The contact structure is designed to maintain electrical connection reliability throughout the range of motion, allowing the device to provide positioning services in both rolled and extended states without compromising connection stability.
Data Source
AI summary
An electronic device is provided. The electronic device includes a housing including a first housing and a second housing, a flexible display, at least one contact structure, a first processor, and a first ultrawide band (UWB) antenna, a second UWB antenna, a third UWB antenna, and a fourth UWB antenna, and, in a first state, the first processor may transmit and/or receive a signal of a designated frequency band, based on at least two of the first UWB antenna and the second UWB antenna, and the third UWB antenna, and, in a second state, the first processor may transmit and/or receive a signal of a designated frequency band, based on at least two of the first UWB antenna and the second UWB antenna, and the fourth UWB antenna which is disposed in the flexible display.