Study on Isolation and Radiation Behaviours of a 34×34 Array-Antennas Based on SIW and Metasurface Properties for Applications in Terahertz Band Over 125-300 GHz
This paper describes the feasibility of conceptual design of a 34×34 array antenna for operation at Terahertz over a frequency range of 125-300 GHz for S11 <= -10dB, which corresponds a fractional bandwidth of 82.35%. Each radiation element constituting the array consists of a square patch of dim...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Elsevier
2019
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| Online Access: | https://repository.londonmet.ac.uk/5162/1/Accepted_Optik_13-Aug-2019.pdf |
| _version_ | 1825625402474758144 |
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| author | Alibakhshikenari, Mohammad Virdee, Bal Singh |
| author_facet | Alibakhshikenari, Mohammad Virdee, Bal Singh |
| author_sort | Alibakhshikenari, Mohammad |
| collection | LMU |
| description | This paper describes the feasibility of conceptual design of a 34×34 array antenna for operation at Terahertz over a frequency range of 125-300 GHz for S11 <= -10dB, which corresponds a fractional bandwidth of 82.35%. Each radiation element constituting the array consists of a square patch of dimensions of 2×2 mm^2 that are excited by a matched microstrip line. Each patch is isolated from each other with metallic via-holes, which are implemented based on the substrate integrated waveguide (SIW) technique. This technique is shown to effectively reduce mutual coupling between adjacent radiation elements that can otherwise undermine the arrays radiation gain and pattern. Periphery of each patch is embedded with circular dielectric slots, which are created based on the metasurface concept to enhance the radiation gain and efficiency performances. With the proposed approaches (1) the mutual coupling is suppressed on average by 25 dB over its operating frequency range, and (2) the effective aperture area of the array antenna is extended without increase in the array’s physical dimensions. Radiation gain and efficiency of the proposed array antenna over its operating range vary from 7.51 dBi to 40.08 dBi, and from 70.51% to 90.11%, respectively. Improvement in gain and efficiency of approximately 60% and 30%, respectively, is achieved with the inclusion of the metasurface slots. The proposed 34×34 array antenna is proper candidate for applications in Terahertz wireless communication systems. |
| first_indexed | 2024-07-09T03:58:53Z |
| format | Article |
| id | oai:repository.londonmet.ac.uk:5162 |
| institution | London Metropolitan University |
| language | English |
| last_indexed | 2024-07-09T03:58:53Z |
| publishDate | 2019 |
| publisher | Elsevier |
| record_format | eprints |
| spelling | oai:repository.londonmet.ac.uk:51622019-10-30T12:10:36Z https://repository.londonmet.ac.uk/5162/ Study on Isolation and Radiation Behaviours of a 34×34 Array-Antennas Based on SIW and Metasurface Properties for Applications in Terahertz Band Over 125-300 GHz Alibakhshikenari, Mohammad Virdee, Bal Singh 620 Engineering & allied operations This paper describes the feasibility of conceptual design of a 34×34 array antenna for operation at Terahertz over a frequency range of 125-300 GHz for S11 <= -10dB, which corresponds a fractional bandwidth of 82.35%. Each radiation element constituting the array consists of a square patch of dimensions of 2×2 mm^2 that are excited by a matched microstrip line. Each patch is isolated from each other with metallic via-holes, which are implemented based on the substrate integrated waveguide (SIW) technique. This technique is shown to effectively reduce mutual coupling between adjacent radiation elements that can otherwise undermine the arrays radiation gain and pattern. Periphery of each patch is embedded with circular dielectric slots, which are created based on the metasurface concept to enhance the radiation gain and efficiency performances. With the proposed approaches (1) the mutual coupling is suppressed on average by 25 dB over its operating frequency range, and (2) the effective aperture area of the array antenna is extended without increase in the array’s physical dimensions. Radiation gain and efficiency of the proposed array antenna over its operating range vary from 7.51 dBi to 40.08 dBi, and from 70.51% to 90.11%, respectively. Improvement in gain and efficiency of approximately 60% and 30%, respectively, is achieved with the inclusion of the metasurface slots. The proposed 34×34 array antenna is proper candidate for applications in Terahertz wireless communication systems. Elsevier 2019-08-14 Article PeerReviewed text en cc_by_nc_nd_4 https://repository.londonmet.ac.uk/5162/1/Accepted_Optik_13-Aug-2019.pdf Alibakhshikenari, Mohammad and Virdee, Bal Singh (2019) Study on Isolation and Radiation Behaviours of a 34×34 Array-Antennas Based on SIW and Metasurface Properties for Applications in Terahertz Band Over 125-300 GHz. Optik - International Journal for Light and Electron Optics. ISSN 0030-4026 https://www.sciencedirect.com/science/article/pii/S0030402619311180 10.1016/j.ijleo.2019.163222 10.1016/j.ijleo.2019.163222 |
| spellingShingle | 620 Engineering & allied operations Alibakhshikenari, Mohammad Virdee, Bal Singh Study on Isolation and Radiation Behaviours of a 34×34 Array-Antennas Based on SIW and Metasurface Properties for Applications in Terahertz Band Over 125-300 GHz |
| title | Study on Isolation and Radiation Behaviours of a 34×34 Array-Antennas Based on SIW and Metasurface Properties for Applications in Terahertz Band Over 125-300 GHz |
| title_full | Study on Isolation and Radiation Behaviours of a 34×34 Array-Antennas Based on SIW and Metasurface Properties for Applications in Terahertz Band Over 125-300 GHz |
| title_fullStr | Study on Isolation and Radiation Behaviours of a 34×34 Array-Antennas Based on SIW and Metasurface Properties for Applications in Terahertz Band Over 125-300 GHz |
| title_full_unstemmed | Study on Isolation and Radiation Behaviours of a 34×34 Array-Antennas Based on SIW and Metasurface Properties for Applications in Terahertz Band Over 125-300 GHz |
| title_short | Study on Isolation and Radiation Behaviours of a 34×34 Array-Antennas Based on SIW and Metasurface Properties for Applications in Terahertz Band Over 125-300 GHz |
| title_sort | study on isolation and radiation behaviours of a 34 34 array antennas based on siw and metasurface properties for applications in terahertz band over 125 300 ghz |
| topic | 620 Engineering & allied operations |
| url | https://repository.londonmet.ac.uk/5162/1/Accepted_Optik_13-Aug-2019.pdf |
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