Space efficient meta-grid lines for mutual coupling reduction in two-port planar monopole and DRA array
Traditionally used mutual coupling (MC) reduction techniques such as electromagnetic bandgap structures, isolators and neutralization lines require extra space between radiators. Besides, metamaterial-based techniques require multi-layer arrangements. However, the proposed meta-grid lines overcomes...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/164991 |
| _version_ | 1824454612581613568 |
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| author | Mishra, Mohit Chaudhuri, Sumantra Kshetrimayum, Rakhesh Singh Alphones, Arokiaswami Esselle, Karu P. |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Mishra, Mohit Chaudhuri, Sumantra Kshetrimayum, Rakhesh Singh Alphones, Arokiaswami Esselle, Karu P. |
| author_sort | Mishra, Mohit |
| collection | NTU |
| description | Traditionally used mutual coupling (MC) reduction techniques such as electromagnetic bandgap structures, isolators and neutralization lines require extra space between radiators. Besides, metamaterial-based techniques require multi-layer arrangements. However, the proposed meta-grid lines overcomes the above demerits by integrating meta-grid lines in the ground plane itself. As a proof-of-concept, two-port CPW-fed monopole antenna array (TPCFMAA) and two-port DRA array (TPDRAA) are designed, fabricated and tested. It has been observed that the TPCFMAA has mutual coupling below -20 dB for frequency between 2.6 to 4.4 GHz. The envelope correlation coefficient reduces from 0.072 to 0.026 by integrating meta-grid lines in the ground plane of the TPCFMAA. At 3.5 GHz, the inter-element distance between the antennas is noted to be 0.015λh (λh= highest operating wavelength). The TPDRAA's operating frequency can be tuned by changing the parameters of the annular ring slot in the excitation patch. The bandwidth of TPDRAA can be further increased by merging the two resonances of the two annular ring slots in the excitation patch. For TPDRAA, the measured -10 dB impedance bandwidth is from 5.65 to 6.55 GHz. The mutual coupling between the antenna elements is seen to be below -16 dB for an inter-element spacing of 4.8 mm, which is 0.090λh. The measured gain of TPDRAA within the bandwidth is from 4.17 dBi to 5.2 dBi. The TPCFMAA can be used in 3.5 GHz Internet of Vehicles (IoV) multi-user MIMO service, whereas the TPDRAA can be used for satellite communication in the 5.925 to 6.425 GHz frequency band, WiMAX in the 5.7 to 5.85 GHz band, ISM in the 5.725 to 5.85 GHz band, and WLAN in the 5.8 GHz band. |
| first_indexed | 2025-02-19T03:25:05Z |
| format | Journal Article |
| id | ntu-10356/164991 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:25:05Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | ntu-10356/1649912023-03-10T15:40:01Z Space efficient meta-grid lines for mutual coupling reduction in two-port planar monopole and DRA array Mishra, Mohit Chaudhuri, Sumantra Kshetrimayum, Rakhesh Singh Alphones, Arokiaswami Esselle, Karu P. School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering MIMO Antenna CPW-Fed Printed Monopole Antenna Array Traditionally used mutual coupling (MC) reduction techniques such as electromagnetic bandgap structures, isolators and neutralization lines require extra space between radiators. Besides, metamaterial-based techniques require multi-layer arrangements. However, the proposed meta-grid lines overcomes the above demerits by integrating meta-grid lines in the ground plane itself. As a proof-of-concept, two-port CPW-fed monopole antenna array (TPCFMAA) and two-port DRA array (TPDRAA) are designed, fabricated and tested. It has been observed that the TPCFMAA has mutual coupling below -20 dB for frequency between 2.6 to 4.4 GHz. The envelope correlation coefficient reduces from 0.072 to 0.026 by integrating meta-grid lines in the ground plane of the TPCFMAA. At 3.5 GHz, the inter-element distance between the antennas is noted to be 0.015λh (λh= highest operating wavelength). The TPDRAA's operating frequency can be tuned by changing the parameters of the annular ring slot in the excitation patch. The bandwidth of TPDRAA can be further increased by merging the two resonances of the two annular ring slots in the excitation patch. For TPDRAA, the measured -10 dB impedance bandwidth is from 5.65 to 6.55 GHz. The mutual coupling between the antenna elements is seen to be below -16 dB for an inter-element spacing of 4.8 mm, which is 0.090λh. The measured gain of TPDRAA within the bandwidth is from 4.17 dBi to 5.2 dBi. The TPCFMAA can be used in 3.5 GHz Internet of Vehicles (IoV) multi-user MIMO service, whereas the TPDRAA can be used for satellite communication in the 5.925 to 6.425 GHz frequency band, WiMAX in the 5.7 to 5.85 GHz band, ISM in the 5.725 to 5.85 GHz band, and WLAN in the 5.8 GHz band. Published version This work was supported by the Indian Institute of Technology Guwahati, Guwahati, India. 2023-03-07T01:55:27Z 2023-03-07T01:55:27Z 2022 Journal Article Mishra, M., Chaudhuri, S., Kshetrimayum, R. S., Alphones, A. & Esselle, K. P. (2022). Space efficient meta-grid lines for mutual coupling reduction in two-port planar monopole and DRA array. IEEE Access, 10, 49829-49838. https://dx.doi.org/10.1109/ACCESS.2022.3146941 2169-3536 https://hdl.handle.net/10356/164991 10.1109/ACCESS.2022.3146941 2-s2.0-85124084916 10 49829 49838 en IEEE Access © 2022 The Authors. This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/. application/pdf |
| spellingShingle | Engineering::Electrical and electronic engineering MIMO Antenna CPW-Fed Printed Monopole Antenna Array Mishra, Mohit Chaudhuri, Sumantra Kshetrimayum, Rakhesh Singh Alphones, Arokiaswami Esselle, Karu P. Space efficient meta-grid lines for mutual coupling reduction in two-port planar monopole and DRA array |
| title | Space efficient meta-grid lines for mutual coupling reduction in two-port planar monopole and DRA array |
| title_full | Space efficient meta-grid lines for mutual coupling reduction in two-port planar monopole and DRA array |
| title_fullStr | Space efficient meta-grid lines for mutual coupling reduction in two-port planar monopole and DRA array |
| title_full_unstemmed | Space efficient meta-grid lines for mutual coupling reduction in two-port planar monopole and DRA array |
| title_short | Space efficient meta-grid lines for mutual coupling reduction in two-port planar monopole and DRA array |
| title_sort | space efficient meta grid lines for mutual coupling reduction in two port planar monopole and dra array |
| topic | Engineering::Electrical and electronic engineering MIMO Antenna CPW-Fed Printed Monopole Antenna Array |
| url | https://hdl.handle.net/10356/164991 |
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