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Russian scientists made a Wi-Fi antennas out of a cactus

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Scientists at the Moscow Institute of Physics and Technology and Tel Aviv University have discovered that plants can serve as antennas for signal transmission.

Oddly enough, at the beginning of the project, the scientists were faced with two tasks: increasing crop yields using the electrodynamic properties of plants and improving Wi-Fi connectivity in the forest. This required an understanding of how the fluids in plant capillaries work.

By studying this, scientists have found that leaves can become electromagnetic resonance structures and absorb or re-emit energy. In the course of their work, the researchers even found a relationship between the growth of a plant and its ability to improve or degrade Wi-Fi connectivity.

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As a result, scientists decided to use the system to emit a signal. And so the cactus antenna appeared. Due to the high proportion of water inside the plant, multiple electromagnetic resonances occur.

Nopal cactus stalks have been used as a natural broadband omnidirectional antenna operating in multiple Wi-Fi bands from 900 MHz to 7.7 GHz.

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