Scanning antenna constructed by a plasmonic waveguide with periodic subwavelength metallic hollow blocks

Her Lih Chiueh, Tzong Jer Yang, Jin Jei Wu, Chien Jang Wu, Da Jun Hou, Jian Qi Shen, Yuli Lin, Yao Huang Kao, Wen Chen Lo

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Based on a waveguide made of a subwavelength metal-block array with open slots, a kind of scanning antenna is proposed in this work. Low-frequency spoof surface plasmon polaritons (spoof SPPs) exist in this waveguide and under certain conditions, a leaky mode can be produced. The leaky mode could scan the radiation pencil-beam by angles of 53° when the input frequency changes. The leaky mode is derived from a negative slope dispersion curve of some new transmission modes. As this dispersion curve intersects with the light line, it becomes the leaky mode in high-frequency region. Numerical results reveal that the modal field of the transmission mode resides inside the interior of a hollow block as compared with that in a solid metal block array. Experimental verification of the leaky mode at microwave frequencies has been performed, and the results are found to be consistent with the theoretical analysis.

    Original languageEnglish
    Title of host publication2016 Progress In Electromagnetics Research Symposium, PIERS 2016 - Proceedings
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages1850-1852
    Number of pages3
    ISBN (Electronic)9781509060931
    DOIs
    Publication statusPublished - 2016 Nov 3
    Event2016 Progress In Electromagnetics Research Symposium, PIERS 2016 - Shanghai, China
    Duration: 2016 Aug 82016 Aug 11

    Publication series

    Name2016 Progress In Electromagnetics Research Symposium, PIERS 2016 - Proceedings

    Other

    Other2016 Progress In Electromagnetics Research Symposium, PIERS 2016
    CountryChina
    CityShanghai
    Period16/8/816/8/11

    ASJC Scopus subject areas

    • Instrumentation
    • Radiation
    • Electrical and Electronic Engineering
    • Atomic and Molecular Physics, and Optics

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