Simple design of a wideband and wide-angle reflective linear polarization converter based on crescent-shaped metamaterial for Ku-band applications

Autor: Huu Lam Phan, Ngoc Minh Luong, Chi Lam Truong, Thi Kim Thu Nguyen, Xuan Khuyen Bui, Thanh Nghia Cao, Thi Quynh Hoa Nguyen, Dac Tuyen Le, Dinh Lam Vu, Thi Quynh Mai Nguyen
Rok vydání: 2021
Předmět:
Zdroj: Optics Communications. 486:126773
ISSN: 0030-4018
DOI: 10.1016/j.optcom.2021.126773
Popis: We report a wideband and wide-angle insensitive linear cross-polarization converter based on an anisotropic metamaterial. The converter structure consists of a periodic array of a top metallic crescent-shaped resonator and a bottom metallic ground plane separated by a dielectric layer of FR-4. Both simulation and experiment methods have performed to evaluate the proposed polarization converter performance. The results show a good agreement between the simulation and experimental results. The polarization converter efficiency above 90% is obtained for a wide bandwidth of 6 GHz covering the entire Ku-band (12–18 GHz) at normal incidence. Furthermore, the wideband polarization conversion properties are maintained with a large incident angle up to 45° for both transverse electric (TE) and transverse magnetic (TM) modes. Hence, the designed structure can be used for Ku-band applications.
Databáze: OpenAIRE