Limits for Low Comlexity Beam-Steering for UWB Antenna Arrays
Low complexity beam-steering in UWB array systems uses a constant delay increment between adjacent antenna elements. Such a beam-steering is formally correct only for planar wave fronts in the far-field of the array. In the near-field the UWB signals received/transmitted by low complexity beam-steer...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
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2012
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| _version_ | 1797053602074722304 |
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| author | Sipal, V Edwards, D Allen, B IEEE |
| author_facet | Sipal, V Edwards, D Allen, B IEEE |
| author_sort | Sipal, V |
| collection | OXFORD |
| description | Low complexity beam-steering in UWB array systems uses a constant delay increment between adjacent antenna elements. Such a beam-steering is formally correct only for planar wave fronts in the far-field of the array. In the near-field the UWB signals received/transmitted by low complexity beam-steering do not perfectly overlap in the time domain. Therefore, the energy of received/transmitted signal is reduced. In this paper we use the previously published framework of beam patterns to quantify the reduction of received/transmitted signal energy in order to derive an approximate closed form expression for the minimum distance that is required to guarantee a permissible reduction of the energy of received/transmitted signal, which is application specific, even for low complexity beam-steering. © 2012 IEEE. |
| first_indexed | 2024-03-06T18:45:57Z |
| format | Journal article |
| id | oxford-uuid:0e8489f3-1564-4173-ab1d-8d5619fea6bf |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T18:45:57Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | oxford-uuid:0e8489f3-1564-4173-ab1d-8d5619fea6bf2022-03-26T09:46:22ZLimits for Low Comlexity Beam-Steering for UWB Antenna ArraysJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:0e8489f3-1564-4173-ab1d-8d5619fea6bfEnglishSymplectic Elements at Oxford2012Sipal, VEdwards, DAllen, BIEEELow complexity beam-steering in UWB array systems uses a constant delay increment between adjacent antenna elements. Such a beam-steering is formally correct only for planar wave fronts in the far-field of the array. In the near-field the UWB signals received/transmitted by low complexity beam-steering do not perfectly overlap in the time domain. Therefore, the energy of received/transmitted signal is reduced. In this paper we use the previously published framework of beam patterns to quantify the reduction of received/transmitted signal energy in order to derive an approximate closed form expression for the minimum distance that is required to guarantee a permissible reduction of the energy of received/transmitted signal, which is application specific, even for low complexity beam-steering. © 2012 IEEE. |
| spellingShingle | Sipal, V Edwards, D Allen, B IEEE Limits for Low Comlexity Beam-Steering for UWB Antenna Arrays |
| title | Limits for Low Comlexity Beam-Steering for UWB Antenna Arrays |
| title_full | Limits for Low Comlexity Beam-Steering for UWB Antenna Arrays |
| title_fullStr | Limits for Low Comlexity Beam-Steering for UWB Antenna Arrays |
| title_full_unstemmed | Limits for Low Comlexity Beam-Steering for UWB Antenna Arrays |
| title_short | Limits for Low Comlexity Beam-Steering for UWB Antenna Arrays |
| title_sort | limits for low comlexity beam steering for uwb antenna arrays |
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