A Spoof Surface Plasmon Polaritons (SSPPs) Based Dual-Band-Rejection Filter with Wide Rejection Bandwidth
This paper presents a novel single-layer dual band-rejection-filter based on Spoof Surface Plasmon Polaritons (SSPPs). The filter consists of an SSPP-based transmission line, as well as six coupled circular ring resonators (CCRRs) etched among ground planes of the center corrugated strip. These reso...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-12-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/20/24/7311 |
| _version_ | 1797544132755849216 |
|---|---|
| author | Ehsan Farokhipour Mohammad Mehrabi Nader Komjani Can Ding |
| author_facet | Ehsan Farokhipour Mohammad Mehrabi Nader Komjani Can Ding |
| author_sort | Ehsan Farokhipour |
| collection | DOAJ |
| description | This paper presents a novel single-layer dual band-rejection-filter based on Spoof Surface Plasmon Polaritons (SSPPs). The filter consists of an SSPP-based transmission line, as well as six coupled circular ring resonators (CCRRs) etched among ground planes of the center corrugated strip. These resonators are excited by electric-field of the SSPP structure. The added ground on both sides of the strip yields tighter electromagnetic fields and improves the filter performance at lower frequencies. By removing flaring ground in comparison to prevalent SSPP-based constructions, the total size of the filter is significantly decreased, and mode conversion efficiency at the transition from co-planar waveguide (CPW) to the SSPP line is increased. The proposed filter possesses tunable rejection bandwidth, wide stop bands, and a variety of different parameters to adjust the forbidden bands and the filter’s cut-off frequency. To demonstrate the filter tunability, the effect of different elements like number (<i>n</i>), width (<inline-formula><math display="inline"><semantics><msub><mi>W</mi><mi>R</mi></msub></semantics></math></inline-formula>), radius (<inline-formula><math display="inline"><semantics><msub><mi>R</mi><mi>R</mi></msub></semantics></math></inline-formula>) of CCRRs, and their distance to the SSPP line (<inline-formula><math display="inline"><semantics><msub><mi>y</mi><mi>R</mi></msub></semantics></math></inline-formula>) are surveyed. Two forbidden bands, located in the X and K bands, are 8.6–11.2 GHz and 20–21.8 GHz. As the proof-of-concept, the proposed filter was fabricated, and a good agreement between the simulation and experiment results was achieved. |
| first_indexed | 2024-03-10T13:55:05Z |
| format | Article |
| id | doaj.art-48dd25224b33478fa7fa33ace38e2ea7 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T13:55:05Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-48dd25224b33478fa7fa33ace38e2ea72023-11-21T01:39:45ZengMDPI AGSensors1424-82202020-12-012024731110.3390/s20247311A Spoof Surface Plasmon Polaritons (SSPPs) Based Dual-Band-Rejection Filter with Wide Rejection BandwidthEhsan Farokhipour0Mohammad Mehrabi1Nader Komjani2Can Ding3Department of Electrical Engineering, Iran University of Science and Technology, Tehran 1684613114, IranDepartment of Electrical Engineering, Iran University of Science and Technology, Tehran 1684613114, IranDepartment of Electrical Engineering, Iran University of Science and Technology, Tehran 1684613114, IranGlobal Big Data Technologies Centre, University of Technology Sydney, Sydney, NSW 2007, AustraliaThis paper presents a novel single-layer dual band-rejection-filter based on Spoof Surface Plasmon Polaritons (SSPPs). The filter consists of an SSPP-based transmission line, as well as six coupled circular ring resonators (CCRRs) etched among ground planes of the center corrugated strip. These resonators are excited by electric-field of the SSPP structure. The added ground on both sides of the strip yields tighter electromagnetic fields and improves the filter performance at lower frequencies. By removing flaring ground in comparison to prevalent SSPP-based constructions, the total size of the filter is significantly decreased, and mode conversion efficiency at the transition from co-planar waveguide (CPW) to the SSPP line is increased. The proposed filter possesses tunable rejection bandwidth, wide stop bands, and a variety of different parameters to adjust the forbidden bands and the filter’s cut-off frequency. To demonstrate the filter tunability, the effect of different elements like number (<i>n</i>), width (<inline-formula><math display="inline"><semantics><msub><mi>W</mi><mi>R</mi></msub></semantics></math></inline-formula>), radius (<inline-formula><math display="inline"><semantics><msub><mi>R</mi><mi>R</mi></msub></semantics></math></inline-formula>) of CCRRs, and their distance to the SSPP line (<inline-formula><math display="inline"><semantics><msub><mi>y</mi><mi>R</mi></msub></semantics></math></inline-formula>) are surveyed. Two forbidden bands, located in the X and K bands, are 8.6–11.2 GHz and 20–21.8 GHz. As the proof-of-concept, the proposed filter was fabricated, and a good agreement between the simulation and experiment results was achieved.https://www.mdpi.com/1424-8220/20/24/7311tunabilityband stop filterspoof surface plasmon polaritonscircular ring resonators |
| spellingShingle | Ehsan Farokhipour Mohammad Mehrabi Nader Komjani Can Ding A Spoof Surface Plasmon Polaritons (SSPPs) Based Dual-Band-Rejection Filter with Wide Rejection Bandwidth Sensors tunability band stop filter spoof surface plasmon polaritons circular ring resonators |
| title | A Spoof Surface Plasmon Polaritons (SSPPs) Based Dual-Band-Rejection Filter with Wide Rejection Bandwidth |
| title_full | A Spoof Surface Plasmon Polaritons (SSPPs) Based Dual-Band-Rejection Filter with Wide Rejection Bandwidth |
| title_fullStr | A Spoof Surface Plasmon Polaritons (SSPPs) Based Dual-Band-Rejection Filter with Wide Rejection Bandwidth |
| title_full_unstemmed | A Spoof Surface Plasmon Polaritons (SSPPs) Based Dual-Band-Rejection Filter with Wide Rejection Bandwidth |
| title_short | A Spoof Surface Plasmon Polaritons (SSPPs) Based Dual-Band-Rejection Filter with Wide Rejection Bandwidth |
| title_sort | spoof surface plasmon polaritons sspps based dual band rejection filter with wide rejection bandwidth |
| topic | tunability band stop filter spoof surface plasmon polaritons circular ring resonators |
| url | https://www.mdpi.com/1424-8220/20/24/7311 |
| work_keys_str_mv | AT ehsanfarokhipour aspoofsurfaceplasmonpolaritonsssppsbaseddualbandrejectionfilterwithwiderejectionbandwidth AT mohammadmehrabi aspoofsurfaceplasmonpolaritonsssppsbaseddualbandrejectionfilterwithwiderejectionbandwidth AT naderkomjani aspoofsurfaceplasmonpolaritonsssppsbaseddualbandrejectionfilterwithwiderejectionbandwidth AT canding aspoofsurfaceplasmonpolaritonsssppsbaseddualbandrejectionfilterwithwiderejectionbandwidth AT ehsanfarokhipour spoofsurfaceplasmonpolaritonsssppsbaseddualbandrejectionfilterwithwiderejectionbandwidth AT mohammadmehrabi spoofsurfaceplasmonpolaritonsssppsbaseddualbandrejectionfilterwithwiderejectionbandwidth AT naderkomjani spoofsurfaceplasmonpolaritonsssppsbaseddualbandrejectionfilterwithwiderejectionbandwidth AT canding spoofsurfaceplasmonpolaritonsssppsbaseddualbandrejectionfilterwithwiderejectionbandwidth |