Rollable Device Antenna Layout with Sliding Module
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Solution Overview
Problem
Rollable electronic devices face challenges with space limitations for antennas, particularly in the mmWave band, leading to interference and heat dissipation issues due to the mechanical structure and metal rims used for LTE and 5G Sub-6 band antennas.
Innovation Solution
The electronic device incorporates a conductive member antenna as a metal frame with an mmWave antenna module positioned between the metal frame and a sliding module, utilizing a dielectric portion to radiate signals and minimize interference, while a flexible printed circuit board and sliding mechanism help in heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an antenna module operating in the mmWave band is disposed inside the electronic device, then 5G communication services in the mmWave band can be provided, but interference occurs between the mmWave antenna module and the metal rims for the LTE antenna and the 5G Sub-6 antenna
Solution Approach 1:
A sliding module is introduced as an intermediary component between the antenna module and the metal frame. The sliding module includes a sliding member that can move relative to the metal frame, creating a mechanical decoupling that reduces electromagnetic interference while maintaining the antenna module's functionality inside the device
2Adaptability or versatility
If multiple antennas are provided in the form of metal rims on side surfaces, then LTE and 5G Sub-6 band communication services can be provided, but space limitations occur for additional antennas operating in the Sub-6 band
Solution Approach 1:
The sliding module is designed to serve multiple functions: it acts as a mechanical support structure, provides electromagnetic shielding, enables antenna tuning through relative movement, and facilitates heat dissipation. This multi-functionality allows the same structural component to address multiple requirements without consuming additional space
3Volume of moving object
If the antenna module is disposed inside the electronic device, then a compact structure is achieved, but heat generated by RF signals transmitted to the antenna module cannot be easily dissipated
Solution Approach 1:
The sliding module serves as a thermal interface between the antenna module and the external environment. By designing the sliding member with conductive materials and optimizing its contact area with the metal frame, heat generated by the antenna module can be efficiently conducted away through the sliding module to the device's external heat dissipation paths
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration maintains antenna performance across various orientations and expansions of the display, minimizes radio wave interference, and reduces heat generation from RF signals, ensuring stable communication even when the device is gripped.
Implementation Method 1
a conductive member antenna which is implemented as one of a plurality of metal rims and radiates a signal, and an antenna module disposed between the metal frame and a sliding module of the electronic device and radiating a signal in a millimeter wave (mmWave) band
Implementation Method 2
utilizing a dielectric portion to radiate signals and minimize interference
Implementation Method 3
a flexible printed circuit board and sliding mechanism help in heat dissipation
Data Source
AI summary
An electronic device according to one embodiment may include a conductive member antenna implemented as one of a plurality of metal rims and configured to radiate a signal, and an antenna module disposed between a metal frame and a sliding module of the electronic device, and configured to radiate a signal in a millimeter wave (mmWave) band. The sliding module may be coupled to the conductive member antenna and disposed between the conductive member antenna and a moving portion of the electronic device to operate as a slide support portion.