High‐directivity radiation based on the leaky mode of spoof surface plasmon polaritons | Zendy

Wu Jin Jei | Zendy; Shen Linfang | Zendy; Hou Da Jun | Zendy; Kao YaoHuang | Zendy; Wu ChienJang | Zendy; Shen Jian Qi | Zendy; Yang TzongJer | Zendy

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High‐directivity radiation based on the leaky mode of spoof surface plasmon polaritons

Author(s) -

Wu Jin Jei,

Shen Linfang,

Hou Da Jun,

Kao YaoHuang,

Wu ChienJang,

Shen Jian Qi,

Yang TzongJer

Publication year - 2014

Publication title -

iet microwaves, antennas and propagation

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.555

H-Index - 69

eISSN - 1751-8733

pISSN - 1751-8725

DOI - 10.1049/iet-map.2013.0479

Subject(s) - directivity , surface plasmon polariton , radiation , plasmon , optics , surface plasmon , mode (computer interface) , polariton , materials science , optoelectronics , physics , telecommunications , computer science , antenna (radio) , operating system

The guiding properties of spoof surface plasmon polaritons (SPPs) in an array of hollowed‐out metallic blocks standing on a metallic surface are theoretically investigated in this study. For such spoof SPPs, there exists an additional guiding mode except for the fundamental mode and the former is closely related to hollowing out metal blocks. The dispersion band of this additional mode has a negative slope (corresponding to a group velocity) and it intersects the light line and then enters the radiation region as the frequency grows, which leads to a frequency steering pencil‐like radiation. The transmission and radiation properties of the additional mode of spoof SPPs are finally verified experimentally.

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