An ultra-compact mechanical antenna based on PTFE highly charged electret for extremely low frequency communications
—Extremely-Low Frequencies (ELF, 30∼300Hz) transmitting antennas in wireless communications are often limited by antenna size and complex impedance matching networks. In this paper, we propose an ultra-small Artificial Electret Type Mechanical Antenna (AETMA), which is composed of a single charge el...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-03-01
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| Series: | Heliyon |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844024029645 |
| _version_ | 1797259769724010496 |
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| author | Wenhou Zhang Zongxin Wang Zhenxin Cao Xiaoyu Wang Mengjiang Sun Dongning Cui Ying Chen Song Ma |
| author_facet | Wenhou Zhang Zongxin Wang Zhenxin Cao Xiaoyu Wang Mengjiang Sun Dongning Cui Ying Chen Song Ma |
| author_sort | Wenhou Zhang |
| collection | DOAJ |
| description | —Extremely-Low Frequencies (ELF, 30∼300Hz) transmitting antennas in wireless communications are often limited by antenna size and complex impedance matching networks. In this paper, we propose an ultra-small Artificial Electret Type Mechanical Antenna (AETMA), which is composed of a single charge electret and a driving structure, with high radiation efficiency and small size. In order to improve the electric dipole moment of the mechanical antenna, we employ a pin-plate corona polarization technique and a unidirectional stretching treatment to obtain a porous thin-film electret that can stably store a large amount of charge. Its surface charge density can reach 5.355 mC/m2 and we analyze its surface potential stability. To assess the radiation capability of AETMA, the radiation field models of three kinds of mechanical antennas are established and verified by simulation. Additionally, we simulate and compare the planar electret and curved electret configurations to determine the optimal form of AETMA. The radiation intensity of the planar electret is found to be superior under the same moment of inertia. Finally, a 1m-scale artificial electret antenna is designed based on the optimal model. Comparative analysis with existing rotary mechanical antenna schemes confirms the great potential of the proposed AETMA for portable, miniaturized and high-performance wireless communication devices. |
| first_indexed | 2024-04-24T23:14:42Z |
| format | Article |
| id | doaj.art-1f004cc29baa47b5a5c222622f385e28 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-04-24T23:14:42Z |
| publishDate | 2024-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-1f004cc29baa47b5a5c222622f385e282024-03-17T07:56:48ZengElsevierHeliyon2405-84402024-03-01105e26933An ultra-compact mechanical antenna based on PTFE highly charged electret for extremely low frequency communicationsWenhou Zhang0Zongxin Wang1Zhenxin Cao2Xiaoyu Wang3Mengjiang Sun4Dongning Cui5Ying Chen6Song Ma7The school of information science and engineering, Southeast University, Nanjing 210000, ChinaThe school of information science and engineering, Southeast University, Nanjing 210000, China; Corresponding author.The school of information science and engineering, Southeast University, Nanjing 210000, Chinathe school of mechanical engineering, Dalian Jiaotong University, Dalian 116000, ChinaThe school of information science and engineering, Southeast University, Nanjing 210000, Chinathe school of mechanical engineering, Dalian Jiaotong University, Dalian 116000, Chinathe Southwest China Institute of Electronic Technology,Chengdu 610036, Chinathe Southwest China Institute of Electronic Technology,Chengdu 610036, China—Extremely-Low Frequencies (ELF, 30∼300Hz) transmitting antennas in wireless communications are often limited by antenna size and complex impedance matching networks. In this paper, we propose an ultra-small Artificial Electret Type Mechanical Antenna (AETMA), which is composed of a single charge electret and a driving structure, with high radiation efficiency and small size. In order to improve the electric dipole moment of the mechanical antenna, we employ a pin-plate corona polarization technique and a unidirectional stretching treatment to obtain a porous thin-film electret that can stably store a large amount of charge. Its surface charge density can reach 5.355 mC/m2 and we analyze its surface potential stability. To assess the radiation capability of AETMA, the radiation field models of three kinds of mechanical antennas are established and verified by simulation. Additionally, we simulate and compare the planar electret and curved electret configurations to determine the optimal form of AETMA. The radiation intensity of the planar electret is found to be superior under the same moment of inertia. Finally, a 1m-scale artificial electret antenna is designed based on the optimal model. Comparative analysis with existing rotary mechanical antenna schemes confirms the great potential of the proposed AETMA for portable, miniaturized and high-performance wireless communication devices.http://www.sciencedirect.com/science/article/pii/S2405844024029645Extremely-low frequenciesPorous thin film electretChargeMechanical antenna |
| spellingShingle | Wenhou Zhang Zongxin Wang Zhenxin Cao Xiaoyu Wang Mengjiang Sun Dongning Cui Ying Chen Song Ma An ultra-compact mechanical antenna based on PTFE highly charged electret for extremely low frequency communications Heliyon Extremely-low frequencies Porous thin film electret Charge Mechanical antenna |
| title | An ultra-compact mechanical antenna based on PTFE highly charged electret for extremely low frequency communications |
| title_full | An ultra-compact mechanical antenna based on PTFE highly charged electret for extremely low frequency communications |
| title_fullStr | An ultra-compact mechanical antenna based on PTFE highly charged electret for extremely low frequency communications |
| title_full_unstemmed | An ultra-compact mechanical antenna based on PTFE highly charged electret for extremely low frequency communications |
| title_short | An ultra-compact mechanical antenna based on PTFE highly charged electret for extremely low frequency communications |
| title_sort | ultra compact mechanical antenna based on ptfe highly charged electret for extremely low frequency communications |
| topic | Extremely-low frequencies Porous thin film electret Charge Mechanical antenna |
| url | http://www.sciencedirect.com/science/article/pii/S2405844024029645 |
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