Dual-Band Frequency Selective Surface Patch Array for 5G and 6G
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Solution Overview
Problem
Conventional frequency selective surfaces can only pass signals of a single band, necessitating the use of multiple surfaces with different patterns to handle both 5G and 6G signals, which increases manufacturing costs during the transition from 5G to 6G.
Innovation Solution
A frequency selective surface structure featuring four central double-frequency patches arranged in a 2×2 array, each with a polygonal shape and notches on outer corner parts, allowing it to pass both 5G and 6G signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional frequency selective surfaces are used, then single band signal transmission is achieved, but multiple surfaces are required for 5G and 6G signals increasing manufacturing cost
Solution Approach 1:
The frequency selective surface is designed with a 2×2 array of patches that can simultaneously handle both 5G and 6G signal bands. Each patch configuration responds to multiple frequency ranges, allowing a single surface structure to perform the function of what would traditionally require multiple separate surfaces for different bands.
Solution Approach 2:
The patent employs specific geometric parameters in the patch design, including notches positioned at outer corner parts and central corner parts, with particular dimensions and arrangements. By optimizing these parameters, the surface achieves resonance characteristics that cover both 5G and 6G frequency bands, enabling dual-band functionality through parameter optimization rather than requiring multiple structures.
2Adaptability or versatility
If multiple frequency selective surfaces with different patterns are used, then both 5G and 6G signals can be passed, but device complexity increases
Solution Approach 1:
The patent combines multiple functional elements into a single integrated frequency selective surface. Instead of using separate surfaces for 5G and 6G bands, the design merges both functionalities into one structure with a 2×2 patch array, where each patch contributes to the overall multi-band filtering and transmission characteristics.
Solution Approach 2:
The patent introduces geometric complexity in the planar arrangement of patches rather than using multiple stacked layers or three-dimensional structures. The 2×2 array configuration with notches at specific positions creates multiple resonance modes within a single planar surface, achieving multi-band functionality through two-dimensional geometric design rather than adding structural dimensions.
Data Source
AI summary
The invention provides a frequency selective surface structure including a substrate and at least one conductive layer. The at least one conductive layer is disposed on the substrate and includes four central double-frequency patches. The four central double-frequency patches are spaced apart from one another and are arranged in a 2×2 array. In each of the four central double-frequency patches, the central double-frequency patch is in a polygonal shape and has a central corner part, a plurality of outer corner parts and a plurality of notches, the central corner part is located closer to a geometric center of the at least one conductive layer than the plurality of outer corner parts, and the plurality of notches are located on the plurality of outer corner parts, respectively.