An ultra-wideband low-pass plasmonic filter based on spoof surface plasmon polaritons

2015 ◽  
Author(s):  
Liangliang Liu ◽  
Zhuo Li ◽  
Bingzheng Xu ◽  
Pingping Ning ◽  
Chen Chen ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Ultra Wideband ◽  
Plasmonic Filter ◽  
Low Pass ◽  
Plasmon Polaritons ◽  
Spoof Surface Plasmon Polaritons

Low-pass plasmonic filter and its miniaturization based on spoof surface plasmon polaritons

2016 ◽  
Vol 372 ◽  
pp. 155-159 ◽  
Author(s):  
Jia Xu ◽  
Zhuo Li ◽  
Liangliang Liu ◽  
Chen Chen ◽  
Bingzheng Xu ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Plasmonic Filter ◽  
Low Pass ◽  
Plasmon Polaritons ◽  
Spoof Surface Plasmon Polaritons

Multi-band rejection filters based on spoof surface plasmon polaritons and folded split-ring resonators

2019 ◽  
Vol 11 (08) ◽  
pp. 774-781 ◽  
Author(s):  
Luping Li ◽  
Lijuan Dong ◽  
Peng Chen ◽  
Kai Yang
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Cutoff Frequency ◽  
Ring Resonators ◽  
Center Frequency ◽  
Pass Band ◽  
Rejection Filter ◽  
Low Pass ◽  
Plasmon Polaritons ◽  
Spoof Surface Plasmon Polaritons

AbstractA dualband rejection filter and a triband rejection filter are proposed in this letter, both of which are implemented by cascading spoof surface plasmon polaritons (SSPPs) of the same structure but with diverse rejection bands. Compared with traditional ones, the proposed filters provide more compact structures, wider rejection bands, and better independent tunability. In the proposed filters, the rejection bandwidth, the center frequency of the rejection band and the filter's cutoff frequency can be adjusted independently. And the different rejection bands in the same filter also can be independently controlled. Agreements between the dispersion of SSPP units and the S21 of filters are also presented. Measurement results demonstrate that both filters load multiple rejection bands on the 27.7 GHz wide low-pass band and all the rejection bands locate in Ku and K bands. The average rejection bandwidth and the average rejection depth of the two filters are 1.49 GHz and 42.1 dB, respectively.

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