Configurable Pattern Reflector Network for Dual Slot Antenna
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Solution Overview
Problem
The challenge is to design an information handling system with a full metal chassis that supports wireless operation on multiple frequency bands without increasing thickness or requiring additional components, while avoiding destructive interference and maintaining aesthetics.
Innovation Solution
A multiple antenna system with a configurable pattern reflector network and antenna control system is integrated within the metal chassis, allowing for efficient operation on various frequency bands, including 5G networks, without the need for extra RF transparent windows or plastic components, by using a parasitic coupling element to adjust antenna radiation patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a full metal chassis is used for aesthetic purposes and structural integrity, then appearance and strength are improved, but wireless signal transmission deteriorates due to blocking and destructive interference
Solution Approach 1:
A pattern reflector network is introduced as an intermediary component between the metal chassis and the antenna. This reflector network mediates the interaction by reflecting and shaping electromagnetic signals, allowing the full metal chassis to maintain its aesthetic and structural properties while the reflector ensures reliable wireless signal transmission by directing signals away from the metal blocking surfaces.
2Adaptability or versatility
If multiple antennas are added to support multiple frequency bands, then frequency band coverage is improved, but device thickness and complexity increase
Solution Approach 1:
The pattern reflector network is designed to work with a single antenna system to achieve multi-frequency band operation. Instead of requiring separate antennas for different frequency bands, the reflector network enables one antenna to efficiently transmit and receive signals across multiple frequency bands by dynamically shaping and directing the radiation patterns, thereby reducing device complexity and thickness while maintaining broad frequency coverage.
3Reliability
If additional RF transparent windows or plastic components are added to enable wireless operation, then wireless signal transmission is improved, but manufacturing complexity and costs increase
Solution Approach 1:
Instead of adding RF transparent windows or plastic components to overcome the metal chassis blocking, the invention converts the harmful effect of the metal chassis into a beneficial one. The pattern reflector network utilizes the metal chassis as a reflective surface to actively direct and shape electromagnetic signals, transforming the blocking metal structure into a signal-directing element that enhances wireless transmission without requiring additional RF transparent components, thereby simplifying manufacturing and reducing costs.
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 enables efficient wireless communication across multiple frequency bands while maintaining a streamlined metal chassis, enhancing data transfer and reducing manufacturing complexity and costs, without compromising aesthetics or increasing thickness.
Implementation Method 1
at least one of the first reflector network and the second reflector network comprising a configurable pattern reflector
Implementation Method 2
by using a parasitic coupling element to adjust antenna radiation patterns
Data Source
AI summary
An information handling system (IHS) includes a multiple antenna system. The multiple antenna system includes a first antenna system, the first antenna system comprising a first antenna and a first reflector network; a second antenna system, the second antenna comprising a second antenna and a second reflector network, at least one of the first reflector network and the second reflector network comprising a configurable pattern reflector; and, an antenna control system, the antenna control system controlling configuration of the configurable pattern reflector.