RF-Transparent Antenna Window for Integrated 5G Heat Dissipation
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Solution Overview
Problem
Active antenna systems in information handling systems generate heat during data transmission, which can damage the components and cause discomfort if not properly cooled, and existing cooling solutions increase the physical footprint and require additional cooling devices.
Innovation Solution
Incorporating a thermally conductive and RF transparent window within the chassis, combined with a thermally conductive and RF transparent thermal pad, to dissipate heat away from the active antenna system without interfering with its operation, and using an aerogel layer to prevent heat from dissipating into user-touchable areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a traditional cooling system is used to cool the active antenna system, then the heat generated during data transmission can be dissipated, but the physical footprint of the device increases and additional cooling devices are required
Solution Approach 1:
The patent combines the antenna window with thermal management functionality by integrating a thermally conductive and RF transparent material into the window structure. This merging of communication and cooling functions eliminates the need for separate cooling devices, thereby reducing the device's physical footprint while maintaining effective heat dissipation from the active antenna system.
Solution Approach 2:
The window serves multiple functions simultaneously: it acts as an RF transparent barrier for signal transmission and reception, provides structural support for the antenna system, and functions as a thermal management component by conducting heat away from the active antenna. This multi-functionality reduces the need for additional dedicated cooling components.
2Reliability
If a cooling system is added to manage heat from the active antenna system, then component damage and user discomfort are prevented, but the device complexity increases
Solution Approach 1:
The patent integrates thermal management directly into the antenna window structure by using a thermally conductive and RF transparent material. This consolidation of cooling functionality within an existing component (the window) simplifies the overall device architecture and reduces the number of separate cooling devices needed, thereby maintaining reliability while reducing complexity.
Solution Approach 2:
The antenna window itself provides thermal management functionality through its thermally conductive properties. The window material actively conducts heat away from the active antenna system as part of its inherent structural function, eliminating the need for separate active cooling mechanisms and reducing overall system complexity.
3Volume of stationary object
If heat is allowed to dissipate freely from the active antenna system, then the cooling system size can be minimized, but heat may reach user-touchable areas causing discomfort
Solution Approach 1:
The patent applies thermally conductive and RF transparent material specifically at the antenna window location where heat generation occurs. This localized thermal management approach directs heat away from user-touchable areas through the window structure itself, providing targeted cooling where needed while minimizing the overall cooling system size and avoiding user discomfort.
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 solution effectively manages heat generated by active antenna systems, reducing the risk of damage and user discomfort while minimizing the cooling system's size and physical footprint, and directing heat into the chassis for dissipation.
Implementation Method 1
Incorporating a thermally conductive and RF transparent window within the chassis, combined with a thermally conductive and RF transparent thermal pad, to dissipate heat away from the active antenna system
Implementation Method 2
using an aerogel layer to prevent heat from dissipating into user-touchable areas
Implementation Method 3
a thermally conductive and RF transparent window within the chassis... without interfering with its operation
Data Source
AI summary
An information handling system with an antenna cooling system, comprising a processor; a memory; a power management unit (PMU) operatively coupled to the processor; a wireless interface adapter with a radio module within a chassis of the information handling system; and an active antenna system with an antenna mounted at an aperture in a wall of the chassis of the information handling system; a thermally conductive and radio frequency (RF) transparent window formed seamlessly within the aperture in the wall of the chassis of the information handling system and where the thermally conductive and RF transparent window is configured to permit antenna RF transmission while dissipating heat generated by the active antenna system.