Capacitive-coupled Series Spoof Surface Plasmon Polaritons

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

27 Scopus Citations
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Author(s)

  • Jia Yuan Yin
  • Jian Ren
  • Hao Chi Zhang
  • Qian Zhang
  • Tie Jun Cui

Detail(s)

Original languageEnglish
Article number24605
Journal / PublicationScientific Reports
Volume6
Publication statusPublished - 19 Apr 2016

Link(s)

Abstract

A novel method to realize stopband within the operating frequency of spoof surface plasmon polaritons (SPPs) is presented. The stopband is introduced by a new kind of capacitive-coupled series spoof SPPs. Two conventional H-shaped unit cells are proposed to construct a new unit cell, and every two new unit cells are separated by a gap with certain distance, which is designed to implement capacitive coupling. The original surface impedance matching is disturbed by the capacitive coupling, leading to the stopband during the transmission of SPPs. The proposed method is verified by both numerical simulations and experiments, and the simulated and measured results have good agreements. It is shown that the proposed structure exhibits a stopband in 9-9.5 GHz while the band-pass feature maintains in 5-9 GHz and 9.5-11 GHz. In the passband, the reflection coefficient is less than -10 dB, and the transmission loss is around 3 dB; in the stopband, the reflection coefficient is -2 dB, and the transmission coefficient is less than -30 dB. The compact size, easy fabrication and good band-pass and band-stop features make the proposed structure a promising plasmonic device in SPP communication systems.

Research Area(s)

Citation Format(s)

Capacitive-coupled Series Spoof Surface Plasmon Polaritons. / Yin, Jia Yuan; Ren, Jian; Zhang, Hao Chi; Zhang, Qian; Cui, Tie Jun.

In: Scientific Reports, Vol. 6, 24605, 19.04.2016.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

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