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Metamaterial antennas for cognitive radio applications
Cognitive radio is one of the most promising techniques to efficiently utilize the radio frequency (RF) spectrum. As the Digital Video Broadcasting-Handheld (DVB-H) band is targeted (470-862 MHz), the size of the antenna becomes challenging. Metamaterial concept is used as a miniaturization techniq...
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| Format: | Thesis |
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AUC Knowledge Fountain
2013
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| _version_ | 1867613416569438208 |
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| access_status_str | Open Access |
| author | Raslan, Ahmed Rajaie |
| author_browse | Raslan, Ahmed Rajaie |
| author_facet | Raslan, Ahmed Rajaie |
| author_sort | Raslan, Ahmed Rajaie |
| collection | Thesis |
| dc_rights_str_mv | The author retains all rights with regard to copyright. The author certifies that written permission from the owner(s) of third-party copyrighted matter included in the thesis, dissertation, paper, or record of study has been obtained. The author further certifies that IRB approval has been obtained for this thesis, or that IRB approval is not necessary for this thesis. Insofar as this thesis, dissertation, paper, or record of study is an educational record as defined in the Family Educational Rights and Privacy Act (FERPA) (20 USC 1232g), the author has granted consent to disclosure of it to anyone who requests a copy. |
| description | Cognitive radio is one of the most promising techniques to efficiently utilize the radio frequency (RF) spectrum. As the Digital Video Broadcasting-Handheld (DVB-H) band is targeted (470-862 MHz), the size of the antenna becomes challenging. Metamaterial concept is used as a miniaturization technique. Two antennas are designed, fabricated and measured. The first one achieved multiband operation by loading it with a metamaterial unit cell. These bands are controlled by engineering the dispersion relation of the unit cell. The second one, which is a 2-lumped elements loaded antenna, achieved wideband operation through the entire DVB-H band with a planar size of 5×2 cm^2. A model is proposed to explain, through simple numerical simulations and an optimization algorithm, the behavior of these component loaded antennas (which are equivalent to metamaterial inspired electrically small antennas). |
| format | Thesis |
| id | oai:fount.aucegypt.edu:etds-2237 |
| institution | American University in Cairo (Egypt) |
| last_indexed | 2026-06-10T12:35:47.730Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from AUC Knowledge Fountain — bepress |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| publisher | AUC Knowledge Fountain |
| publisherStr | AUC Knowledge Fountain |
| record_format | dspace |
| source_str | AUC Knowledge Fountain — bepress |
| spelling | oai:fount.aucegypt.edu:etds-2237 Metamaterial antennas for cognitive radio applications Raslan, Ahmed Rajaie Cognitive radio is one of the most promising techniques to efficiently utilize the radio frequency (RF) spectrum. As the Digital Video Broadcasting-Handheld (DVB-H) band is targeted (470-862 MHz), the size of the antenna becomes challenging. Metamaterial concept is used as a miniaturization technique. Two antennas are designed, fabricated and measured. The first one achieved multiband operation by loading it with a metamaterial unit cell. These bands are controlled by engineering the dispersion relation of the unit cell. The second one, which is a 2-lumped elements loaded antenna, achieved wideband operation through the entire DVB-H band with a planar size of 5×2 cm^2. A model is proposed to explain, through simple numerical simulations and an optimization algorithm, the behavior of these component loaded antennas (which are equivalent to metamaterial inspired electrically small antennas). 2013-06-01T07:00:00Z thesis application/pdf https://fount.aucegypt.edu/etds/1238 https://fount.aucegypt.edu/context/etds/article/2237/viewcontent/Ahmed_20Raslan_20Thesis.pdf The author retains all rights with regard to copyright. The author certifies that written permission from the owner(s) of third-party copyrighted matter included in the thesis, dissertation, paper, or record of study has been obtained. The author further certifies that IRB approval has been obtained for this thesis, or that IRB approval is not necessary for this thesis. Insofar as this thesis, dissertation, paper, or record of study is an educational record as defined in the Family Educational Rights and Privacy Act (FERPA) (20 USC 1232g), the author has granted consent to disclosure of it to anyone who requests a copy. Theses and Dissertations AUC Knowledge Fountain Radio--Antens Wireless communication systems |
| spellingShingle | Radio--Antens Wireless communication systems Raslan, Ahmed Rajaie Metamaterial antennas for cognitive radio applications |
| title | Metamaterial antennas for cognitive radio applications |
| title_full | Metamaterial antennas for cognitive radio applications |
| title_fullStr | Metamaterial antennas for cognitive radio applications |
| title_full_unstemmed | Metamaterial antennas for cognitive radio applications |
| title_short | Metamaterial antennas for cognitive radio applications |
| title_sort | metamaterial antennas for cognitive radio applications |
| topic | Radio--Antens Wireless communication systems |
| url | https://fount.aucegypt.edu/etds/1238 https://fount.aucegypt.edu/context/etds/article/2237/viewcontent/Ahmed_20Raslan_20Thesis.pdf |
| work_keys_str_mv | AT raslanahmedrajaie metamaterialantennasforcognitiveradioapplications |