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arXiv · 2401.05383

Multi-frequency antenna for quasi-isotropic radiator and 6G massive IoT

Bing Xiao·Hang Wong·Kam Man Shum
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Abstract

An isotropic antenna radiates and receives electromagnetic wave uniformly in magnitude in 3D space. A multi-frequency quasi-isotropic antenna can serve as a practically feasible solution to emulate an ideal multi-frequency isotropic radiator. It is also an essential technology for mobile smart devices for massive IoT in the upcoming 6G. However, ever since the quasi-isotropic antenna was proposed and achieved more than half a century ago, at most two discrete narrow frequency bands can be achieved, because of the significantly increased structural complexity from multi-frequency isotropic radiation. This limitation impedes numerous related electromagnetic experiments and the advances in wireless communication. Here, for the first time, a design method for multi-band (>2) quasi-isotropic antennas is proposed. An exemplified quasi-isotropic antenna with the desired four frequency bands is also presented for demonstration. The measured results validate excellent performance on both electromagnetics and wireless communications for this antenna.

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Bing Xiao, Hang Wong, Kam Man Shum. 2023-12-18. Multi-frequency antenna for quasi-isotropic radiator and 6G massive IoT. https://arxiv.org/abs/2401.05383

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