Scattered Virtual Antenna for Multi-Band Wireless Devices
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Solution Overview
Problem
Current wireless devices face challenges in achieving efficient radio-electric performance across multiple frequency bands due to the need for complex antenna designs, sensitivity to external factors, and the requirement for customization for each device model, leading to increased costs and delayed market entry.
Innovation Solution
A wireless device incorporating a radiating system with strategically arranged radiation boosters and a ground plane layer that supports efficient radiation modes, eliminating the need for a resonant antenna element and enabling operation across multiple frequency bands with enhanced robustness to human loading effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional resonant antenna element is used, then the antenna operates at a specific frequency with acceptable performance, but the antenna size becomes large (comparable to wavelength) and cannot operate across multiple frequency bands
Solution Approach 1:
The patent divides the antenna system into multiple non-resonant antenna elements distributed across the device surface, each contributing to the overall radiation pattern. This segmentation allows the system to achieve multi-frequency operation without requiring each element to be a full-sized resonant structure, thereby reducing individual element sizes while maintaining versatility.
Solution Approach 2:
The patent transitions from traditional one-dimensional or two-dimensional antenna structures to a three-dimensional distributed array of radiation boosters positioned at multiple heights and locations within the device. This dimensional expansion enables multi-frequency operation through spatial distribution rather than relying on large planar resonant structures.
2Reliability
If the antenna system is customized for each device model, then the radio-electric performance is optimized for that specific model, but the development cost increases and time to market is delayed
Solution Approach 1:
The patent creates a universal antenna system comprising multiple non-resonant radiation boosters that can be strategically positioned and activated depending on the specific device model and frequency requirements. This universal design allows the same basic antenna structure to serve multiple device variants and frequency bands, reducing customization needs while maintaining optimized performance through selective activation of appropriate elements.
3Volume of moving object
If the antenna element dimension is reduced to decrease device size, then the device becomes more compact, but the antenna can no longer support resonant operation at the operating frequency
Solution Approach 1:
The patent merges multiple non-resonant radiation boosters into a unified antenna system where the collective radiation pattern achieves the desired performance. By combining the effects of multiple small elements rather than relying on a single large resonant element, the system maintains radiation efficiency while enabling compact device design.
Solution Approach 2:
The patent introduces a ground plane and feeding network as intermediary structures that enable the small non-resonant elements to achieve effective radiation. The ground plane acts as a mediator that enhances the radiation capability of sub-wavelength elements, allowing compact design without sacrificing reliability.
4Shape
If a single large antenna element is used, then the antenna provides adequate radiation pattern, but the device thickness increases and slim device design becomes difficult
Solution Approach 1:
The patent segments the radiation function across multiple small elements distributed in three-dimensional space rather than using a single large planar element. This segmentation allows the radiation pattern to be synthesized from multiple small contributors, enabling slim device design while maintaining adequate radiation characteristics through strategic element placement.
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
The solution allows for simplified integration, reduced device size, and improved radio-electric performance across multiple standards, enhancing robustness to human loading and enabling operation in various form factors, including slim and foldable devices, while minimizing call drops and maintaining battery life.
Implementation Method 1
a ground plane layer that supports efficient radiation modes, eliminating the need for a resonant antenna element and enabling operation across multiple frequency bands
Data Source
AI summary
A wireless device includes at least one radiating system having a redundancy system and a combining system. The redundancy system includes two or more radiation boosters. The radiating system is characterized by its simplicity that facilitates its integration within the wireless device and achieves enhanced radio-electric performance in at least one frequency region of the electromagnetic spectrum, which may include multiple wireless services. The combining system enables a substantially balanced power distribution among the radiation boosters of the redundancy system, and the radiating system provides an increased robustness to human loading effects in at least one frequency region of operation.