In this article, a simple periodic 1-D magnetized plasma photonic crystal (PPC) is proposed. The effects of plasma frequency and plasma cyclotron frequency on the absorption of such magnetized PPCs are investigated theoretically by the transfer matrix method. The simulated results show that, for the TM wave, a tunable absorption window in the transmission region (AWTR) can be achieved when the incident angle is 82°, and the absorption peak of AWTR shifts to the higher frequencies when the plasma frequency and plasma cyclotron frequency are increased. On this basis, a multistack structure is designed by splicing periodic PPC structures with different plasma cyclotron frequencies. The calculated results indicate that an ultrawideband absorption band can be achieved for the stacked structure, and the broadband transmission window in the absorption region (TWAR) can be obtained by changing the distribution of plasma cyclotron frequency. Besides, the ultrawideband absorption and TWAR can be realized in different frequency bands after optimization parameters. Those simulated results can provide ideas for designing the angle-dependent polarized splitters, tunable ultrawideband absorbers, radomes, or switchable absorption–transmission window signal modulators.

中文翻译：

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基于一维磁化等离子体光子晶体的可切换吸收-传输窗口调制器

在本文中，提出了一种简单的周期性一维磁化等离子体光子晶体 (PPC)。通过转移矩阵法从理论上研究了等离子体频率和等离子体回旋频率对这种磁化PPCs吸收的影响。仿真结果表明，对于 TM 波，当入射角为 82°时，透射区（AWTR）可以实现可调吸收窗口，当等离子体频率和等离子体频率增加时，AWTR 的吸收峰向更高的频率移动。回旋频率增加。在此基础上，通过拼接不同等离子体回旋频率的周期性PPC结构，设计了多叠层结构。计算结果表明，堆叠结构可以实现超宽带吸收带，并且通过改变等离子体回旋频率的分布可以获得吸收区（TWAR）中的宽带传输窗口。此外，优化参数后可以在不同频段实现超宽带吸收和TWAR。这些模拟结果可以为设计与角度相关的偏振分路器、可调谐超宽带吸收器、天线罩或可切换吸收-传输窗口信号调制器提供思路。