Wearable Fabric Reconfigurable Beam-Steering Antenna for On/Off-Body Communication System
This paper presents a comparison of on-body performances between omnidirectional (loop antenna) and reconfigurable beam-steering antennas. Both omnidirectional and reconfigurable antennas were manufactured on the same fabric substrate and operated at the frequency band of the WLAN 802.11a (5.725–5.8...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2015/539843 |
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| author | Seonghun Kang Chang Won Jung |
| author_facet | Seonghun Kang Chang Won Jung |
| author_sort | Seonghun Kang |
| collection | DOAJ |
| description | This paper presents a comparison of on-body performances between omnidirectional (loop antenna) and reconfigurable beam-steering antennas. Both omnidirectional and reconfigurable antennas were manufactured on the same fabric substrate and operated at the frequency band of the WLAN 802.11a (5.725–5.85 GHz). The reconfigurable antenna was designed to steer the beam directions. In order to implement the beam-steering capability, the antenna used two PIN diodes. The maximum beam directions of three states (states 0, 1, and 2) were steerable in the YZ-plane (h=2°, 28°, and 326°, resp.). The measured peak gains were 5.9–6.6 dBi and the overall half power beam width (HPBW) was 102°. The measured results of total radiated power (TRP) and total isotropic sensitivity (TIS) indicated that the communication efficiency of the reconfigurable beam steering antenna was better than that of the loop antenna. When the input power was 0.04 W (16 dBm), the simulated specific absorption rate (SAR) values of the reconfigurable beam steering antenna on the body were less than 0.979 W/kg (1 g tissue) in all states, satisfying the SAR criteria of the US. |
| format | Article |
| id | doaj-art-f1b0fce2e07c41b988b88e913d009f54 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-f1b0fce2e07c41b988b88e913d009f542025-02-03T01:23:32ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772015-01-01201510.1155/2015/539843539843Wearable Fabric Reconfigurable Beam-Steering Antenna for On/Off-Body Communication SystemSeonghun Kang0Chang Won Jung1Graduate School of NID Fusion Technology, Seoul National University of Technology, 172 Gongneung 2-dong, Nowon-gu, Seoul 139-743, Republic of KoreaGraduate School of NID Fusion Technology, Seoul National University of Technology, 172 Gongneung 2-dong, Nowon-gu, Seoul 139-743, Republic of KoreaThis paper presents a comparison of on-body performances between omnidirectional (loop antenna) and reconfigurable beam-steering antennas. Both omnidirectional and reconfigurable antennas were manufactured on the same fabric substrate and operated at the frequency band of the WLAN 802.11a (5.725–5.85 GHz). The reconfigurable antenna was designed to steer the beam directions. In order to implement the beam-steering capability, the antenna used two PIN diodes. The maximum beam directions of three states (states 0, 1, and 2) were steerable in the YZ-plane (h=2°, 28°, and 326°, resp.). The measured peak gains were 5.9–6.6 dBi and the overall half power beam width (HPBW) was 102°. The measured results of total radiated power (TRP) and total isotropic sensitivity (TIS) indicated that the communication efficiency of the reconfigurable beam steering antenna was better than that of the loop antenna. When the input power was 0.04 W (16 dBm), the simulated specific absorption rate (SAR) values of the reconfigurable beam steering antenna on the body were less than 0.979 W/kg (1 g tissue) in all states, satisfying the SAR criteria of the US.http://dx.doi.org/10.1155/2015/539843 |
| spellingShingle | Seonghun Kang Chang Won Jung Wearable Fabric Reconfigurable Beam-Steering Antenna for On/Off-Body Communication System International Journal of Antennas and Propagation |
| title | Wearable Fabric Reconfigurable Beam-Steering Antenna for On/Off-Body Communication System |
| title_full | Wearable Fabric Reconfigurable Beam-Steering Antenna for On/Off-Body Communication System |
| title_fullStr | Wearable Fabric Reconfigurable Beam-Steering Antenna for On/Off-Body Communication System |
| title_full_unstemmed | Wearable Fabric Reconfigurable Beam-Steering Antenna for On/Off-Body Communication System |
| title_short | Wearable Fabric Reconfigurable Beam-Steering Antenna for On/Off-Body Communication System |
| title_sort | wearable fabric reconfigurable beam steering antenna for on off body communication system |
| url | http://dx.doi.org/10.1155/2015/539843 |
| work_keys_str_mv | AT seonghunkang wearablefabricreconfigurablebeamsteeringantennaforonoffbodycommunicationsystem AT changwonjung wearablefabricreconfigurablebeamsteeringantennaforonoffbodycommunicationsystem |