Ultra-wideband THz metamaterial filter with steep cut-off

Jiufu Ruan, Feng Lan, Liang Wang and Shengwei Ji

Journal of Electromagnetic Waves and Applications, 2021, vol. 35, issue 4, 431-440

Abstract: An ultra-wideband metamaterial (MM) filter with steep cut-off is proposed at terahertz (THz) region. The filter is based on the flexible hybrid structure of copper (Cu)–polyimide (PI)–polymethacrylamide (PMI) multilayer, which reduces the mutual coupling in multilayer MMs. Simulation results prove that the central frequency of the filter is 125 GHz, while the square ratio reaches 0.92 and the relative bandwidth is up to 65%. In addition, it has excellent flat-top characteristics, and the stopband absorption exceeds 95%. Due to the strict symmetry of the structure, the filter shows polarization insensitivity. The transmission mechanism of THz wave is investigated by surface current distribution and the role of each layer in filtering is explored. This work may provide a further step in the development of broadband MM filters with high square ratio, which have potential applications in THz communications and sensors.

Date: 2021
References: Add references at CitEc
Citations:

Downloads: (external link)
http://hdl.handle.net/10.1080/09205071.2020.1842256 (text/html)
Access to full text is restricted to subscribers.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:taf:tewaxx:v:35:y:2021:i:4:p:431-440

Ordering information: This journal article can be ordered from
http://www.tandfonline.com/pricing/journal/tewa20

DOI: 10.1080/09205071.2020.1842256

Access Statistics for this article

Journal of Electromagnetic Waves and Applications is currently edited by Mohamad Abou El-Nasr and Pankaj Kumar Choudhury

More articles in Journal of Electromagnetic Waves and Applications from Taylor & Francis Journals
Bibliographic data for series maintained by Chris Longhurst ().