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Spoof surface plasmon polariton transmission line with reduced line‐width and enhanced field confinement
Author(s) -
Shi Zihao,
Shen Yizhu,
Hu Sanming
Publication year - 2020
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.22276
Subject(s) - surface plasmon polariton , terahertz radiation , transmission line , plasmon , optoelectronics , dispersion (optics) , line (geometry) , polariton , strips , materials science , optics , electric power transmission , surface plasmon , transmission (telecommunications) , electromagnetic field , metamaterial , capacitive sensing , physics , telecommunications , electrical engineering , engineering , geometry , mathematics , quantum mechanics , composite material
This article proposes a compact spoof surface plasmon polaritons (SSPPs) transmission line, by introducing capacitive loading metal strips to manipulate the dispersion characteristics and electromagnetic field confinement. Results validate that, compared with conventional rectangular‐grooved SSPP structure, the proposed SSPP transmission line features a line‐width reduction up to 53%, and moreover a tighter field confinement, that is, 67% reduction of confinement area. This proposed structure can be further implemented in silicon process with multiple metal layers for on‐chip transmission of terahertz signals.