Multitarget Position-Sensitivity Security Transmission with OAM-DM Based on FDA

<div>The uniform circular array antenna and the phase front of OAM beam. (a) UCA. (b) The helical phase front of OAM beam. (c) Rotational phase front.</div>

Security and Communication Networks

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Figure 1

Figure 1: Multitarget Position-Sensitivity Security Transmission with OAM-DM Based on FDA 