Switching between perfect absorption and polarization conversion, based on hybrid metamaterial in the GHz and THz bands
We demonstrate a multifunctional metamaterial (MM) structure which can behave like a perfect absorber (PA) or polarization converter (PC) by controlling the lumped varactor. In PC mode, the MM revealed cross-polarization conversion in a frequency range from 2.0 to 7.0 GHz with a polarization-convers...
Lưu vào:
| Tác giả chính: | |
|---|---|
| Định dạng: | Bài Báo |
| Ngôn ngữ: | English |
| Nhà xuất bản: |
Journal of Physics D: Applied Physics 54 (2021), 234003
2021
|
| Chủ đề: | |
| Truy cập trực tuyến: | https://iopscience.iop.org/article/10.1088/1361-6463/abeb97/meta https://dlib.phenikaa-uni.edu.vn/handle/PNK/1430 |
| Từ khóa: |
Thêm từ khóa
Không có từ khóa, Hãy là người đầu tiên đánh dấu biểu ghi này!
|
| Tóm tắt: | We demonstrate a multifunctional metamaterial (MM) structure which can behave like a perfect absorber (PA) or polarization converter (PC) by controlling the lumped varactor. In PC mode, the MM revealed cross-polarization conversion in a frequency range from 2.0 to 7.0 GHz with a polarization-conversion ratio of nearly 100%. While in the PA state, triple-band high absorption was achieved. In addition, we investigated numerically the PA and PC modes by scaling down the geometrical dimension and orientation of the proposed unit cells, for further development of innovative methods in the THz range. Our work is expected to contribute to the realization of future multifunctional MM-based devices working in the GHz or higher-frequency range. |
|---|