Arc-Shaped Metamaterial Phased Array for Wider 5G Beam Scanning
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Solution Overview
Problem
Conventional phased array antenna modules with metamaterials suffer from low gain and narrow phase scanning angles due to reduced size and radiation aperture, which limits their performance in 5G mobile devices.
Innovation Solution
A phased array antenna module with an arc-shaped metamaterial structure, featuring aligned concave surfaces with millimeter-wave emission surfaces, and metallic unit structures that increase or decrease in size sequentially, enhancing gain and scanning angle while minimizing wave loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the size of phased array antenna modules is reduced to meet integration demands, then device integration is improved, but gain and phase scanning angle are reduced
Solution Approach 1:
The patent employs an arc-shaped metamaterial structure with a curved surface instead of a planar configuration. This curvature enables the antenna module to maintain high gain and wide phase scanning angles despite size reduction, as the arc shape optimizes wave convergence and radiation patterns. The arc-shaped design allows the small-form-factor module to achieve performance comparable to larger planar antennas.
2Adaptability or versatility
If the size of phased array antenna modules is reduced, then device integration is improved, but phase scanning angle is reduced
Solution Approach 1:
The arc-shaped metamaterial structure inherently provides wide-angle scanning capability through its curved geometry. The arc configuration allows electromagnetic waves to be radiated over a broader angular range, enabling the compact module to achieve wide phase scanning angles that would otherwise require a much larger planar antenna array.
3Ease of manufacture
If conventional planar metamaterial structures are used, then manufacturing is simpler, but scanning loss is higher
Solution Approach 1:
The arc-shaped metamaterial structure reduces scanning loss by optimizing the path and distribution of electromagnetic waves during beam scanning. The curved surface maintains more consistent wave impedance and reduces reflection losses compared to planar structures, especially at wide scanning angles. This geometric optimization minimizes energy loss while maintaining manufacturability through standard fabrication processes.
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 arc-shaped metamaterial structure increases gain and scanning angle, reduces scanning loss, and aligns with the housing of 5G devices, optimizing spatial requirements and integration.
Implementation Method 1
Metamaterials can converge incident spherical waves into planar beams in the transmission direction, thereby enhancing far-field gain
Implementation Method 2
the refractive index of the dielectric material play significant roles, with the effective permittivity of metamaterials being less than or equal to zero
Implementation Method 3
Additionally, they can achieve wide-angle scanning by controlling the phase of transmitted waves
Data Source
AI summary
The present disclosure provides a phased array antenna module loaded with metamaterials, an RF circuit, and a 5G mobile device. The module includes a millimeter-wave RF module with at least one emission surface and an arc-shaped metamaterial structure featuring multiple stacked layers, each with periodically distributed metallic unit structures. Each concave surface of the metamaterial structure aligns with the corresponding emission surface, and the metallic unit structures in the same layer are of equal size. Across layers, these structures are arranged in a one-to-one correspondence, with sizes sequentially increasing or decreasing along the stacking direction. This configuration improves gain, expands scanning angles, and minimizes scanning loss, offering enhanced performance and seamless integration with modern 5G devices.