Complementary frequency selective surface pair-based intelligent spatial filters for 5G wireless systems
Frequency selective surface (FSS)-based intelligent spatial filters are capturing the eyes of the researchers by offering a dynamic behavior when exposed to the electromagnetic radiations. In this manuscript, a concept of creating complementary structures which stems from Babinet’s principle is illu...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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De Gruyter
2021-11-01
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| Series: | Journal of Intelligent Systems |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/jisys-2021-0082 |
| _version_ | 1828123738744291328 |
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| author | Kapoor Ankush Mishra Ranjan Kumar Pradeep |
| author_facet | Kapoor Ankush Mishra Ranjan Kumar Pradeep |
| author_sort | Kapoor Ankush |
| collection | DOAJ |
| description | Frequency selective surface (FSS)-based intelligent spatial filters are capturing the eyes of the researchers by offering a dynamic behavior when exposed to the electromagnetic radiations. In this manuscript, a concept of creating complementary structures which stems from Babinet’s principle is illustrated. A hybrid complementary pair of FSS (CPFSS) comprising double square loop FSS (DSLFSS) and double square slot FSS (DSSFSS) on either side of the dielectric substrate is proposed. DSLFSS offers band-pass behavior and can be placed as a superstrate, whereas DSSFSS behaves as a band-stop intelligent spatial filter that blocks the radiations falling on it, thus making them applicable for use as a substrate. The technique utilized for analyzing DSLFSS and DSSFSS structures is based on the equivalent circuit modeling and transmission line methodology. The CPFSS structure offers the design simplicity, hence, suitable for placing them with the printed patch antenna radiators in wireless networking devices operating in sub-6 GHz 5G spectrum. DSLFSS offers band-pass behavior ranging from 2.99 to 5.56 GHz, whereas DSSFSS offers band-stop behavior ranging from 2.85 to 5.42 GHz covering all n77 (3.3–4.2 GHz), n78 (3.3–3.8 GHz), and n79 (4.4–5 GHz) bands of FR1 spectrum of sub-6 GHz 5G range. The passband and the stopband offered by the two structures of CPFSS geometry are stable to oblique angles of incidence and the proposed design also offers polarization-independent behavior. The thickness of the dielectric region existing within the pair of designed structures is critical for the location of the passbands and the stopbands. The impact of the overall thickness of the dielectric substrate on the passbands and stopbands is also reported in this article. |
| first_indexed | 2024-04-11T14:56:54Z |
| format | Article |
| id | doaj.art-2d42298784a043a199cdd035487d8be2 |
| institution | Directory Open Access Journal |
| issn | 2191-026X |
| language | English |
| last_indexed | 2024-04-11T14:56:54Z |
| publishDate | 2021-11-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Journal of Intelligent Systems |
| spelling | doaj.art-2d42298784a043a199cdd035487d8be22022-12-22T04:17:12ZengDe GruyterJournal of Intelligent Systems2191-026X2021-11-013011054106910.1515/jisys-2021-0082Complementary frequency selective surface pair-based intelligent spatial filters for 5G wireless systemsKapoor Ankush0Mishra Ranjan1Kumar Pradeep2Department of Electronics and Communication Engineering, Jawaharlal Nehru Government Engineering College, Sundernagar, Mandi, IndiaDepartment of Electrical and Electronics Engineering, University of Petroleum and Energy Studies, Dehradun, IndiaDiscipline of Electrical, Electronic and Computer Engineering, University of KwaZulu-Natal, Durban-4041, South AfricaFrequency selective surface (FSS)-based intelligent spatial filters are capturing the eyes of the researchers by offering a dynamic behavior when exposed to the electromagnetic radiations. In this manuscript, a concept of creating complementary structures which stems from Babinet’s principle is illustrated. A hybrid complementary pair of FSS (CPFSS) comprising double square loop FSS (DSLFSS) and double square slot FSS (DSSFSS) on either side of the dielectric substrate is proposed. DSLFSS offers band-pass behavior and can be placed as a superstrate, whereas DSSFSS behaves as a band-stop intelligent spatial filter that blocks the radiations falling on it, thus making them applicable for use as a substrate. The technique utilized for analyzing DSLFSS and DSSFSS structures is based on the equivalent circuit modeling and transmission line methodology. The CPFSS structure offers the design simplicity, hence, suitable for placing them with the printed patch antenna radiators in wireless networking devices operating in sub-6 GHz 5G spectrum. DSLFSS offers band-pass behavior ranging from 2.99 to 5.56 GHz, whereas DSSFSS offers band-stop behavior ranging from 2.85 to 5.42 GHz covering all n77 (3.3–4.2 GHz), n78 (3.3–3.8 GHz), and n79 (4.4–5 GHz) bands of FR1 spectrum of sub-6 GHz 5G range. The passband and the stopband offered by the two structures of CPFSS geometry are stable to oblique angles of incidence and the proposed design also offers polarization-independent behavior. The thickness of the dielectric region existing within the pair of designed structures is critical for the location of the passbands and the stopbands. The impact of the overall thickness of the dielectric substrate on the passbands and stopbands is also reported in this article.https://doi.org/10.1515/jisys-2021-0082babinet’s principlefrequency selective surfacedouble square loop fssdouble square slot fsscomplementary pair fssequivalent circuit modelsub-6 ghz fr1 5g spectrum |
| spellingShingle | Kapoor Ankush Mishra Ranjan Kumar Pradeep Complementary frequency selective surface pair-based intelligent spatial filters for 5G wireless systems Journal of Intelligent Systems babinet’s principle frequency selective surface double square loop fss double square slot fss complementary pair fss equivalent circuit model sub-6 ghz fr1 5g spectrum |
| title | Complementary frequency selective surface pair-based intelligent spatial filters for 5G wireless systems |
| title_full | Complementary frequency selective surface pair-based intelligent spatial filters for 5G wireless systems |
| title_fullStr | Complementary frequency selective surface pair-based intelligent spatial filters for 5G wireless systems |
| title_full_unstemmed | Complementary frequency selective surface pair-based intelligent spatial filters for 5G wireless systems |
| title_short | Complementary frequency selective surface pair-based intelligent spatial filters for 5G wireless systems |
| title_sort | complementary frequency selective surface pair based intelligent spatial filters for 5g wireless systems |
| topic | babinet’s principle frequency selective surface double square loop fss double square slot fss complementary pair fss equivalent circuit model sub-6 ghz fr1 5g spectrum |
| url | https://doi.org/10.1515/jisys-2021-0082 |
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