Passively Reconfigurable Antenna Using Gravitational Method
Satitchantrakul, Thanatcha; Manapreecha, Chanathan; Phongpatrawiset, Sukrit; Soh, Ping Jack (2024-05-05)
Springer
05.05.2024
Satitchantrakul, T., Manapreecha, C., Phongpatrawiset, S., Soh, P.J. (2024). Passively Reconfigurable Antenna Using Gravitational Method. In: Särestöniemi, M., et al. Digital Health and Wireless Solutions. NCDHWS 2024. Communications in Computer and Information Science, vol 2084. Springer, Cham. https://doi.org/10.1007/978-3-031-59091-7_10
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© 2024 The Author(s). This chapter is licensed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made. The images or other third party material in this chapter are included in the chapter’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the chapter’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
https://creativecommons.org/licenses/by/4.0/
© 2024 The Author(s). This chapter is licensed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made. The images or other third party material in this chapter are included in the chapter’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the chapter’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:oulu-202405304105
https://urn.fi/URN:NBN:fi:oulu-202405304105
Tiivistelmä
Abstract
This paper proposes a passive reconfigurable antenna by using liquid metal and gravity mechanism. When the antenna rotates to different angles, the liquid metal will flow to the lowest point of the container due to gravitational force, thereby acting as a reflector to redirect the main antenna radiation pattern at predefined angles at 5.8 GHz (ISM band). The upper section patterns can be maintained when antenna is tilted at 45°, 90°, 135°, 225°, 275° and 315° whereas the rotated antenna at 0° and 180° causes a forward radiation. More importantly, additional directors surrounding the main patch can be used to increase the directivity of these radiation patterns. Simulation results in terms of reflection coefficient, radiation patterns and gain indicate that the proposed antenna operated passively with a consistent bandwidth of approximately 400 MHz.
This paper proposes a passive reconfigurable antenna by using liquid metal and gravity mechanism. When the antenna rotates to different angles, the liquid metal will flow to the lowest point of the container due to gravitational force, thereby acting as a reflector to redirect the main antenna radiation pattern at predefined angles at 5.8 GHz (ISM band). The upper section patterns can be maintained when antenna is tilted at 45°, 90°, 135°, 225°, 275° and 315° whereas the rotated antenna at 0° and 180° causes a forward radiation. More importantly, additional directors surrounding the main patch can be used to increase the directivity of these radiation patterns. Simulation results in terms of reflection coefficient, radiation patterns and gain indicate that the proposed antenna operated passively with a consistent bandwidth of approximately 400 MHz.
Kokoelmat
- Avoin saatavuus [37708]
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