A resonant cavity based on a hollow square pattern
By designing a resonant cavity with a hollowed-out square pattern, a four-layer metasurface is constructed, solving the problem of dual-band and broadband terahertz absorption in existing technologies. This achieves efficient resonant absorption in a specific frequency band, expanding its application in terahertz nondestructive testing and super-resolution imaging.
CN119108823BActive Publication Date: 2026-06-19NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
- Filing Date
- 2024-09-13
- Publication Date
- 2026-06-19
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Figure CN119108823B_ABST
Abstract
This invention discloses a resonant cavity based on a hollow square pattern, specifically relating to the field of metasurface electromagnetic shielding technology. The hollow square pattern of the resonant cavity is obtained by removing a square with a side length of L1 from its four corners or along its four sides, and removing a specific pattern at the centroid of the square. The specific pattern consists of several identical basic patterns. One of the basic patterns is located at the center of the specific pattern, and the four vertices of the basic pattern coincide with one vertex of each of the other basic patterns.
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