Abstract
As one of the hot techniques, the Internet of Things (IoT) is gradually penetrating all aspects of human life. The limitation of the spectrum resources has limited the development of the IoT, which forces us to look for new ways to increase the efficiency of the spectrum utilization. The Electromagnetic (EM) wave with orbital angular momentum (OAM), also called the EM vortex wave is a promising method to solve this problem. In this article, the basic theory of EM wave with OAM in radio frequency (RF) is introduced and the main techniques in the OAM radio beam, including the generation of the EM with OAM, the receive, the multiplexing based on OAM mode are summarized. Based on the main properties of EM wave with OAM in RF, the potential applications of EM vortex beam in the IoT are discussed.
Supported by the Seed Foundation of Innovation and Creation for Graduate Students in Northwestern Polytechnical University.
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Li, J., Pang, X., Feng, C. (2020). Electromagnetic Wave with OAM and Its Potential Applications in IoT. In: Li, B., Zheng, J., Fang, Y., Yang, M., Yan, Z. (eds) IoT as a Service. IoTaaS 2019. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 316. Springer, Cham. https://doi.org/10.1007/978-3-030-44751-9_47
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DOI: https://doi.org/10.1007/978-3-030-44751-9_47
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