Spoof Surface Plasmon Polariton Waveguide With Switchable Notched Band
- 1 September 2021
- journal article
- research article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 33 (20), 1147-1150
- https://doi.org/10.1109/lpt.2021.3109612
Abstract
A coplanar waveguide (CPW) based spoof surface plasmon polariton (SSPP) waveguide with strong field confinement is proposed, which has a low-pass filtering response. Then, two half-wavelength slot resonators are loaded on both sides of the SSPP waveguide to introduce a notch in the passband. Meanwhile, the SSPP waveguide with two ring slot resonators is simulated, whose results are consistent with the SSPP low-pass filter. Finally, two PIN diodes are bridged across the slits of the two resonators to realize the dynamic switchability of the notch. The waveguide functions as a notch filter when the diodes are in on-state, and a low-pass filter when the diodes are in off-state. To verify the feasibility of the design, a SSPP waveguide example is fabricated and measured, where the simulated and measured results are in reasonably good agreement.Keywords
Funding Information
- National Key Research and Development Program of China (2020YFA0709802)
- NSAF Joint Fund (U2130102)
- Natural Science Foundation of Shaanxi Province (2021JQ-060)
- “Siyuan Scholar” Fellowship of XJTU
This publication has 17 references indexed in Scilit:
- Wideband Fish-Bone Antenna Utilizing Odd-Mode Spoof Surface Plasmon Polaritons for Endfire RadiationIEEE Transactions on Antennas and Propagation, 2019
- Design Wideband Differential Bandpass Filter Using Slotline Surface Plasmon PolaritonsIEEE Access, 2019
- A Novel Three-Dimensional Integrated Spoof Surface Plasmon Polaritons Transmission LineIEEE Access, 2019
- Terahertz broadband spoof surface plasmon polaritons using high-order mode developed from ultra-compact split-ring groovesOptics Express, 2019
- Electronically controlled rejections of spoof surface plasmons polaritonsJournal of Applied Physics, 2017
- Coplanar waveguide wideband band-stop filter based on localized spoof surface plasmonsApplied Optics, 2016
- Transmission-spectrum-controllable spoof surface plasmon polaritons using tunable metamaterial particlesApplied Physics Letters, 2016
- Direct Radiations of Surface Plasmon Polariton Waves by Gradient Groove Depth and Flaring Metal StructureIEEE Antennas and Wireless Propagation Letters, 2015
- Controlling rejections of spoof surface plasmon polaritons using metamaterial particlesOptics Express, 2014
- Mimicking Surface Plasmons with Structured SurfacesScience, 2004