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An Ultra-Compact Surface Plasmon Transmission Line Based on Partially Grounded Coplanar Waveguide

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Abstract

In this article, a new spoof surface plasmon polariton (SSPP) developed from partially grounded coplanar waveguides (PGCPW) is proposed. By utilizing folded-strip-type DGS, the dispersion characteristics can be controlled. Based on the equivalent circuit analyses, it is found that the proposed PGCPW SSPP features lower asymptotic frequency than the conventional grounded coplanar waveguides (GCPW) SSPP with the same size occupation. As a result, the proposed PGCPW SSPP has a smaller size occupation to obtain the same asymptotic frequency. To illustrate the design principle, the proposed PGCPW SSPP TL is designed, fabricated, and tested. Results validate that the proposed PGCPW SSPP TL exhibits smaller unit cell size, transition size, and total size.

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No datasets were generated or analysed during the current study.

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Authors and Affiliations

  1. The Key Laboratory of Intelligent Textile and Flexible Interconnection of Zhejiang Province, School of Information Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China

    Yu-Xin Cui, Yu-Xuan Zhang & Lin Li

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  1. Yu-Xin Cui
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  2. Yu-Xuan Zhang
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  3. Lin Li
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Contributions

All authors contributed to the study conception and design. The first draft of the manuscript was written by Yu-Xin Cui, and all authors commented on previous versions of the manuscript. Material preparation, data collection, and analysis were performed by Y.-X. C. Y.X. Z. prepared Fig. 4. Methodology, review, and editing were performed by L. L. All authors read and approved the final manuscript.

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Correspondence to Lin Li.

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Cui, YX., Zhang, YX. & Li, L. An Ultra-Compact Surface Plasmon Transmission Line Based on Partially Grounded Coplanar Waveguide. Plasmonics (2024). https://doi.org/10.1007/s11468-024-02318-0

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