THz narrow band-pass filter based on stopband modulation in corrugated parallel plate waveguides

doi:10.1016/j.optcom.2020.125604

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	THz narrow band-pass filter based on stopband modulation in corrugated parallel plate waveguides
	K. H. Jia,L. N. Fan and Z. L. Cao
	2020
发表期刊	Optics Communications
ISSN	0030-4018
卷号	465 页码:5
摘要	We demonstrate stopband modulation in a corrugated parallel plate waveguide (PPWG) in terahertz (THz) frequency. Different from the traditional approaches to achieve narrow band-pass filter, a method based on the junction of two stopbands is provided. Two stopbands can come closer through adjustment of plate distance and controlling the grooves depth, which generate a narrowband transmission region. It is found that plate distance can control the interval of two stopbands. On optimization of plate distance, the filter can achieve a range of zero-sideband, high transmissivity (T=99.8%), narrow linewidth (5.8 GHz), and high-quality factor (Q approximate to 220). Furthermore, we also present the designs of tunable filter and modulate performance when liquid crystal (LC) is used as waveguide material. So, an excellent tunable filtering characteristic has been achieved. Finally, this work provides a new possibility for the designing of narrow band-pass filter devices.
DOI	10.1016/j.optcom.2020.125604
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收录类别	SCI ; EI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/64963
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	K. H. Jia,L. N. Fan and Z. L. Cao. THz narrow band-pass filter based on stopband modulation in corrugated parallel plate waveguides[J]. Optics Communications,2020,465:5.
APA	K. H. Jia,L. N. Fan and Z. L. Cao.(2020).THz narrow band-pass filter based on stopband modulation in corrugated parallel plate waveguides.Optics Communications,465,5.
MLA	K. H. Jia,L. N. Fan and Z. L. Cao."THz narrow band-pass filter based on stopband modulation in corrugated parallel plate waveguides".Optics Communications 465(2020):5.

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