Pouyanfar Negin, Nourinia Javad, Ghobadi Changiz, Nayyeri Vahid
Department of Electrical Engineering, Urmia University, Urmia, 5756151818, Iran.
School of Advanced Technologies, Iran University of Science and Technology, Tehran, 1684613114, Iran.
Sci Rep. 2025 Jan 30;15(1):3773. doi: 10.1038/s41598-025-87595-3.
This study presents a very thin wideband linear polarization converter in transmission mode with near-unity conversion efficiency. The suggested converter consists of a periodic array on a single-layer substrate, two metallic layers and six vias. Metallic vias connect the upper and lower layers of the construction. The radiated electromagnetic wave with linear polarization can be transformed into its orthogonal component in the transmission mode by the proposed converter. The suggested polarization converter operates well in the 9.53-13.35 GHz frequency band (36%). Additionally, The structure provides a larger than 90% Polarization Conversion Ratio (PCR) through the frequency range of 8.89-14.21 GHz. The conversion mechanism has been explained and confirmed through both surface current distribution, electric charge distribution and experimental tests. Over the whole frequency range, there is good agreement between the simulated and measured results.
本研究提出了一种在传输模式下具有近乎单位转换效率的超薄宽带线性极化转换器。所建议的转换器由单层基板上的周期性阵列、两个金属层和六个过孔组成。金属过孔连接结构的上下层。所提出的转换器可将具有线性极化的辐射电磁波在传输模式下转换为其正交分量。所建议的极化转换器在9.53 - 13.35 GHz频段（36%）内运行良好。此外，该结构在8.89 - 14.21 GHz频率范围内提供大于90%的极化转换率（PCR）。通过表面电流分布、电荷分布和实验测试对转换机制进行了解释和确认。在整个频率范围内，模拟结果与测量结果吻合良好。
