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Wireless communication apparatus and antenna device
kazuhiko HONJO Advanced Wireless and Communication Research Center (AWCC) The University of Electro-Communications
The orbital angular momentum (OAM) has two modes, rightward and leftward, and the OAM on a loop antenna has both of them at the same time, creating a standing wave. Therefore, two OAM modes can be extracted from a single loop antenna by changing the position of the loop antenna excitation. This invention shows how to expand the number of OAM multiplexes by a factor of two using this principle.
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