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Extending the Absorption Frequency Band Using Twisted Configuration in the GHz Region

By Pham Van Dien, Pham Van Hai, Vu Minh Tu, Nguyen Thi Thuy, Do Hoang Tung, Pham Van Vinh, and Tran Manh Cuong
Progress In Electromagnetics Research Letters, Vol. 105, 71-78, 2022


The electromagnetic wave perfect absorption of metamaterial is focused on by scientists currently. Conventional studies typically use a basic unit cell and then develop the entire structure in production. In this paper, we study and use a full-sized twisted metamaterial structure with the expectation that this structure will reveal outstanding advantages and possess excellent electromagnetic absorption properties. The structure of the twisted metamaterial consists of two coincident layers of cyclic lattice stacked on top of each other. When one lattice layer rotates at a specified angle relative to the other, it generates a new lattice configuration and increases the absorption of the structure. Therefore, the frequency band widens up to 6 GHz.


Pham Van Dien, Pham Van Hai, Vu Minh Tu, Nguyen Thi Thuy, Do Hoang Tung, Pham Van Vinh, and Tran Manh Cuong, "Extending the Absorption Frequency Band Using Twisted Configuration in the GHz Region," Progress In Electromagnetics Research Letters, Vol. 105, 71-78, 2022.


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