Scholarlink

<p>We propose a novel method for phase shift control in spoof surface plasmon polaritons (SPPs) by systematically loading engineered metallic-dielectric structures. Prior researches examined material effects on spoof SPPs cells dispersion diagrams, But systematic loading different regions of cells remains unaddressed. By tailoring the dielectric loading of bulky U-shaped metallic unit cells using materials with relative permittivities ranging from 3.2 to 9.8 (TMM 3 to TMM 10) in different regions, we precisely investigate the corresponding dispersion’s behavior. A measurement setup including a PCB-to-bulky U-shaped spoof SPPs waveguide transition was engineered to feed the U-shaped cells, ensuring they closely match the ideal theoretical performance, defined as a U-shaped cell without any substrate effects. Our theoretical and experimental analyses show that loading the cell’s exterior region maximizes the phase shift, with TMM10 achieving up to <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(120^\circ\)</EquationSource> </InlineEquation> at 3.5 GHz and TMM3 yielding <InlineEquation ID="IEq2"> <EquationSource Format="TEX">\(80^\circ\)</EquationSource> </InlineEquation> at 5 GHz. Near-field measurements using a NEOSCAN optical probe validate these findings across 0.5–6 GHz, demonstrating a clear trade-off between maximum phase shift and bandwidth. This work provides a practical approach for developing compact, high-performance phase shifters for telecommunications and sensing applications.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Efficient phase shift in metamaterial spoof surface plasmon polaritons waveguides

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年11月28日

查看全文
  • Behnam Mazdouri,
  • Rashid Mirzavand

摘要

We propose a novel method for phase shift control in spoof surface plasmon polaritons (SPPs) by systematically loading engineered metallic-dielectric structures. Prior researches examined material effects on spoof SPPs cells dispersion diagrams, But systematic loading different regions of cells remains unaddressed. By tailoring the dielectric loading of bulky U-shaped metallic unit cells using materials with relative permittivities ranging from 3.2 to 9.8 (TMM 3 to TMM 10) in different regions, we precisely investigate the corresponding dispersion’s behavior. A measurement setup including a PCB-to-bulky U-shaped spoof SPPs waveguide transition was engineered to feed the U-shaped cells, ensuring they closely match the ideal theoretical performance, defined as a U-shaped cell without any substrate effects. Our theoretical and experimental analyses show that loading the cell’s exterior region maximizes the phase shift, with TMM10 achieving up to \(120^\circ\) at 3.5 GHz and TMM3 yielding \(80^\circ\) at 5 GHz. Near-field measurements using a NEOSCAN optical probe validate these findings across 0.5–6 GHz, demonstrating a clear trade-off between maximum phase shift and bandwidth. This work provides a practical approach for developing compact, high-performance phase shifters for telecommunications and sensing applications.