Phase Control Device Using 3D Stacked Metal Layer Arrays
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Solution Overview
Problem
Existing phase control devices experience high loss and narrow bandwidth due to elements approaching resonance, limiting efficient phase control of electromagnetic waves.
Innovation Solution
A phase control device comprising a two-dimensional array of three-dimensional units with stacked metal layers of varying numbers, allowing for independent control of equivalent permeability and permittivity to achieve efficient phase shifting across a wide bandwidth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If elements are designed to approach resonance state to achieve large current flow, then phase control capability is improved, but bandwidth becomes narrow and loss increases
Solution Approach 1:
The patent changes the fundamental operating parameter from resonance-based phase control to non-resonance phase control. By designing elements that do not operate at resonance frequency, the system achieves phase control without the associated bandwidth narrowing and energy loss, directly resolving the technical contradiction between phase control capability and energy loss.
Solution Approach 2:
The patent modifies the operational state parameter by keeping elements away from resonance condition. This parameter change allows the system to maintain low loss and wide bandwidth while still achieving effective phase control through alternative mechanisms not dependent on resonant enhancement.
2Reliability
If elements are designed to approach resonance state to achieve large current flow, then phase control capability is improved, but bandwidth becomes narrow
Solution Approach 1:
The patent fundamentally changes the operating parameter from resonance-based to non-resonance-based phase control. This parameter change enables the system to achieve wide bandwidth adaptability while maintaining phase control capability, as non-resonant elements do not suffer from the bandwidth limitations inherent in resonant designs.
3Adaptability or versatility
If stacked metal layers with different numbers are used in three-dimensional units, then wide bandwidth and high efficiency are achieved, but device complexity increases
Solution Approach 1:
The patent divides the phase control device into multiple three-dimensional units, each containing stacked metal layers. By segmenting the overall function into discrete units with varying metal layer configurations, the system achieves wide bandwidth through diversity while maintaining manageable complexity through modular architecture and systematic design patterns.
Solution Approach 2:
The patent applies local quality by varying the number of metal layers in different three-dimensional units according to their specific functional requirements. This localized optimization allows each unit to be tuned for specific phase control characteristics, achieving overall wide bandwidth performance while maintaining reasonable device complexity through targeted rather than universal complexity.
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
Enables high-efficiency phase control of electromagnetic waves with a wide bandwidth by combining three-dimensional units with different metal layer configurations, effectively addressing the limitations of existing devices.
Implementation Method 1
a phase control device including a two-dimensional array of three-dimensional units, in which the two-dimensional array is configured to shift a phase of an electromagnetic wave passing through the three-dimensional units
Data Source
AI summary
An object is to advantageously control a phase of an electromagnetic wave with high efficiency in wide bandwidth. A phase control device includes a two dimensional array of a plurality of cube units that are configured to shift a phase of an electromagnetic wave passing through the cube units. The cube units include at least two basic structures including different number of stacked metal layers separated from each other.