Adaptive beamforming of steerable array monopole antenna for WLAN application
The modern communication systems are using smart portable devices that operate on WLAN frequency of 2.45 GHz. One of the serious limitations of handled devices is difficult to achieve a direct connection between the transmitter and receiver. Therefore, a smart steerable patter array antenna is highl...
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| Format: | Thesis |
| Language: | English English English |
| Published: |
2018
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| Online Access: | http://eprints.uthm.edu.my/180/ http://eprints.uthm.edu.my/180/1/24p%20ABDULLAH%20AMER%20ASEM.pdf http://eprints.uthm.edu.my/180/2/ABDULLAH%20AMER%20ASEM%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/180/3/ABDULLAH%20AMER%20ASEM%20WATERMARK.pdf |
| _version_ | 1848887118093352960 |
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| author | Amer Asem, Abdullah |
| author_facet | Amer Asem, Abdullah |
| author_sort | Amer Asem, Abdullah |
| building | UTHM Institutional Repository |
| collection | Online Access |
| description | The modern communication systems are using smart portable devices that operate on WLAN frequency of 2.45 GHz. One of the serious limitations of handled devices is difficult to achieve a direct connection between the transmitter and receiver. Therefore, a smart steerable patter array antenna is highly recommended for new generation communication. Using low-cost steerable passive monopole array antenna can achieve a beam steering and high gain. Loading an additional reactance to the passive elements of the array are changed the mutual coupling between the arrays, which leads to steering the pattern to the desired direction. However, this needs fast process accurate optimised parameters. In this study, four passives one active monopole array antenna is proposed and simulated by using CST Microwave Studio software. The adaptive beamforming is proposed by using downhill simplex algorithm. The results show that the optimum reactance values are suggested after 0.074 second with 94 iterations to achieve a direction of arrival of 180° and 0°. The simulated radiation is successfully steered to the direction of 180 ° by adding the suggested reactance into the passive elements. Furthermore, the antenna gain is improved by 1.3 dBi that achieved a value of 5.3 dBi.The envelope-cross-correlation (ECC) shows magnitudes less than 0.5 among the elements. This algorithm successfully is provided with the optimum reactance values. The proposed approach can be considered a fast and significant candidate for new generation of smart communication WLAN applications. |
| first_indexed | 2025-11-15T19:49:18Z |
| format | Thesis |
| id | uthm-180 |
| institution | Universiti Tun Hussein Onn Malaysia |
| institution_category | Local University |
| language | English English English |
| last_indexed | 2025-11-15T19:49:18Z |
| publishDate | 2018 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | uthm-1802021-06-22T01:34:33Z http://eprints.uthm.edu.my/180/ Adaptive beamforming of steerable array monopole antenna for WLAN application Amer Asem, Abdullah TK7800-8360 Electronics The modern communication systems are using smart portable devices that operate on WLAN frequency of 2.45 GHz. One of the serious limitations of handled devices is difficult to achieve a direct connection between the transmitter and receiver. Therefore, a smart steerable patter array antenna is highly recommended for new generation communication. Using low-cost steerable passive monopole array antenna can achieve a beam steering and high gain. Loading an additional reactance to the passive elements of the array are changed the mutual coupling between the arrays, which leads to steering the pattern to the desired direction. However, this needs fast process accurate optimised parameters. In this study, four passives one active monopole array antenna is proposed and simulated by using CST Microwave Studio software. The adaptive beamforming is proposed by using downhill simplex algorithm. The results show that the optimum reactance values are suggested after 0.074 second with 94 iterations to achieve a direction of arrival of 180° and 0°. The simulated radiation is successfully steered to the direction of 180 ° by adding the suggested reactance into the passive elements. Furthermore, the antenna gain is improved by 1.3 dBi that achieved a value of 5.3 dBi.The envelope-cross-correlation (ECC) shows magnitudes less than 0.5 among the elements. This algorithm successfully is provided with the optimum reactance values. The proposed approach can be considered a fast and significant candidate for new generation of smart communication WLAN applications. 2018-07 Thesis NonPeerReviewed text en http://eprints.uthm.edu.my/180/1/24p%20ABDULLAH%20AMER%20ASEM.pdf text en http://eprints.uthm.edu.my/180/2/ABDULLAH%20AMER%20ASEM%20COPYRIGHT%20DECLARATION.pdf text en http://eprints.uthm.edu.my/180/3/ABDULLAH%20AMER%20ASEM%20WATERMARK.pdf Amer Asem, Abdullah (2018) Adaptive beamforming of steerable array monopole antenna for WLAN application. Masters thesis, Universiti Tun Hussein Onn Malaysia. |
| spellingShingle | TK7800-8360 Electronics Amer Asem, Abdullah Adaptive beamforming of steerable array monopole antenna for WLAN application |
| title | Adaptive beamforming of steerable array monopole antenna for WLAN application |
| title_full | Adaptive beamforming of steerable array monopole antenna for WLAN application |
| title_fullStr | Adaptive beamforming of steerable array monopole antenna for WLAN application |
| title_full_unstemmed | Adaptive beamforming of steerable array monopole antenna for WLAN application |
| title_short | Adaptive beamforming of steerable array monopole antenna for WLAN application |
| title_sort | adaptive beamforming of steerable array monopole antenna for wlan application |
| topic | TK7800-8360 Electronics |
| url | http://eprints.uthm.edu.my/180/ http://eprints.uthm.edu.my/180/1/24p%20ABDULLAH%20AMER%20ASEM.pdf http://eprints.uthm.edu.my/180/2/ABDULLAH%20AMER%20ASEM%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/180/3/ABDULLAH%20AMER%20ASEM%20WATERMARK.pdf |