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

<div>Intensity patterns. The color changing from blue to green, yellow, and red indicates the increasing intensity of the electric field. (a) <i>l</i> = ±1. (b) <i>l</i> = ±2. (c) <i>l</i> = ±3.</div>

Security and Communication Networks

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Figure 6

Figure 6: Multitarget Position-Sensitivity Security Transmission with OAM-DM Based on FDA 