Surface wave reduction in antenna arrays using metasurface inclusion for MIMO and SAR systems
An effective method is presented for suppressing mutual coupling between adjacent radiating elements which is based on metasurface isolation for MIMO and synthetic aperture radar (SAR) systems. This is achieved by choking surface current waves induced over the patch antenna by inserting a cross-shap...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley online journal (AGU Publications)
2019
|
| Subjects: | |
| Online Access: | https://repository.londonmet.ac.uk/5163/1/Radio%20Science_Manuscript_Single%20Column_Final.pdf |
| _version_ | 1825625402676084736 |
|---|---|
| author | Alibakhshikenari, Mohammad Virdee, Bal Singh See, Chan Abd-Alhameed, Raed Falcone, Francisco Limiti, Ernesto |
| author_facet | Alibakhshikenari, Mohammad Virdee, Bal Singh See, Chan Abd-Alhameed, Raed Falcone, Francisco Limiti, Ernesto |
| author_sort | Alibakhshikenari, Mohammad |
| collection | LMU |
| description | An effective method is presented for suppressing mutual coupling between adjacent radiating elements which is based on metasurface isolation for MIMO and synthetic aperture radar (SAR) systems. This is achieved by choking surface current waves induced over the patch antenna by inserting a cross-shaped metasurface structure between the radiating elements. Each arm of the cross-shaped structure constituting the metasurface is etched with meander-line slot (MLS). Effectiveness of the metasurface is demonstrated for a 2×2 antenna array that operates over six frequency sub-bands in X, Ku and K-bands. With the proposed technique, the maximum improvement achieved in attenuating mutual coupling between neighbouring antennas is: 8.5 dB (8-8.4 GHz), 28 dB (9.6-10.8 GHz), 27 dB (11.7-12.6 GHz), 7.5 dB (13.4-14.2 GHz), 13 dB (16.5-16.8 GHz) and 22.5 dB (18.5-20.3 GHz). Furthermore, with the proposed technique (i) minimum center-to-center separation between the radiating elements can be reduced to 0.26λo, where λo is 8.0 GHz; (ii) use of ground-plane or defected ground structures are unnecessary; (iii) use of short-circuited via-holes are avoided; (iv) it eliminates the issue with poor front-to-back ratio; and (v) it can be applied to existing arrays retrospectively. |
| first_indexed | 2024-07-09T03:58:53Z |
| format | Article |
| id | oai:repository.londonmet.ac.uk:5163 |
| institution | London Metropolitan University |
| language | English |
| last_indexed | 2024-07-09T03:58:53Z |
| publishDate | 2019 |
| publisher | Wiley online journal (AGU Publications) |
| record_format | eprints |
| spelling | oai:repository.londonmet.ac.uk:51632019-10-30T12:17:24Z https://repository.londonmet.ac.uk/5163/ Surface wave reduction in antenna arrays using metasurface inclusion for MIMO and SAR systems Alibakhshikenari, Mohammad Virdee, Bal Singh See, Chan Abd-Alhameed, Raed Falcone, Francisco Limiti, Ernesto 620 Engineering & allied operations An effective method is presented for suppressing mutual coupling between adjacent radiating elements which is based on metasurface isolation for MIMO and synthetic aperture radar (SAR) systems. This is achieved by choking surface current waves induced over the patch antenna by inserting a cross-shaped metasurface structure between the radiating elements. Each arm of the cross-shaped structure constituting the metasurface is etched with meander-line slot (MLS). Effectiveness of the metasurface is demonstrated for a 2×2 antenna array that operates over six frequency sub-bands in X, Ku and K-bands. With the proposed technique, the maximum improvement achieved in attenuating mutual coupling between neighbouring antennas is: 8.5 dB (8-8.4 GHz), 28 dB (9.6-10.8 GHz), 27 dB (11.7-12.6 GHz), 7.5 dB (13.4-14.2 GHz), 13 dB (16.5-16.8 GHz) and 22.5 dB (18.5-20.3 GHz). Furthermore, with the proposed technique (i) minimum center-to-center separation between the radiating elements can be reduced to 0.26λo, where λo is 8.0 GHz; (ii) use of ground-plane or defected ground structures are unnecessary; (iii) use of short-circuited via-holes are avoided; (iv) it eliminates the issue with poor front-to-back ratio; and (v) it can be applied to existing arrays retrospectively. Wiley online journal (AGU Publications) 2019 Article PeerReviewed text en cc_by_nc_nd_4 https://repository.londonmet.ac.uk/5163/1/Radio%20Science_Manuscript_Single%20Column_Final.pdf Alibakhshikenari, Mohammad, Virdee, Bal Singh, See, Chan, Abd-Alhameed, Raed, Falcone, Francisco and Limiti, Ernesto (2019) Surface wave reduction in antenna arrays using metasurface inclusion for MIMO and SAR systems. Radio Science. pp. 1-12. ISSN 1944-799X 10.1029/2019RS006871 10.1029/2019RS006871 |
| spellingShingle | 620 Engineering & allied operations Alibakhshikenari, Mohammad Virdee, Bal Singh See, Chan Abd-Alhameed, Raed Falcone, Francisco Limiti, Ernesto Surface wave reduction in antenna arrays using metasurface inclusion for MIMO and SAR systems |
| title | Surface wave reduction in antenna arrays using metasurface inclusion for MIMO and SAR systems |
| title_full | Surface wave reduction in antenna arrays using metasurface inclusion for MIMO and SAR systems |
| title_fullStr | Surface wave reduction in antenna arrays using metasurface inclusion for MIMO and SAR systems |
| title_full_unstemmed | Surface wave reduction in antenna arrays using metasurface inclusion for MIMO and SAR systems |
| title_short | Surface wave reduction in antenna arrays using metasurface inclusion for MIMO and SAR systems |
| title_sort | surface wave reduction in antenna arrays using metasurface inclusion for mimo and sar systems |
| topic | 620 Engineering & allied operations |
| url | https://repository.londonmet.ac.uk/5163/1/Radio%20Science_Manuscript_Single%20Column_Final.pdf |
| work_keys_str_mv | AT alibakhshikenarimohammad surfacewavereductioninantennaarraysusingmetasurfaceinclusionformimoandsarsystems AT virdeebalsingh surfacewavereductioninantennaarraysusingmetasurfaceinclusionformimoandsarsystems AT seechan surfacewavereductioninantennaarraysusingmetasurfaceinclusionformimoandsarsystems AT abdalhameedraed surfacewavereductioninantennaarraysusingmetasurfaceinclusionformimoandsarsystems AT falconefrancisco surfacewavereductioninantennaarraysusingmetasurfaceinclusionformimoandsarsystems AT limitiernesto surfacewavereductioninantennaarraysusingmetasurfaceinclusionformimoandsarsystems |