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BINGGANG XIAO1,* , JU LIANG1, FENGLEI GUO1
We propose a band-rejection filter based on the spoof surface plasmon polaritions (SPPs). The filter was designed by etching complementary single split-ring resonators (CSSRRs) on the waveguide for spoof surface plasmon polaritons (SPPs), which was made of periodic diamond hole array metal strips. A special transition structure basing on flaring ground and gradient hole was used to match the wave vector between coplanar waveguide (CPW) and Spoof SPPs waveguide. From dispersion relations, the structure of periodic diamond hole array metal strips can propagate the spoof SPPs waves when the operating frequency is no more than the cutoff frequency. The simulated results show the isolation of proposed filter can be less than -30 dB from 10.9 GHz to 12.1 GHz, and even reach to -30 dB from 11 GHz to 12 GHz. Due to the simple and compact structure, the proposed filter is easy to fabricate and integrate, which will have a broad application prospects in the follow-up developments of plasmonic integrated circuits and systems..
Band-rejection filter, Spoof surface plasmon polaritons, Split-ring resonators.
BINGGANG XIAO, JU LIANG, FENGLEI GUO, Band-rejection filter based on spoof surface plasmon polaritons, Optoelectronics and Advanced Materials - Rapid Communications, 12, 7-8, July-August 2018, pp.422-425 (2018).
Submitted at: July 28, 2017
Accepted at: Aug. 9, 2018
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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