Circular Antenna Array-Based Directional Modulation Design

2021 
Directional modulation (DM) technology as an extension of beamforming technology has drawn much attention recently. With DM technology, the transmitted information is modulated at the transmitter’s RF end, where the phase information of the transmitted signal is changed by adjusting the phase shifter at the RF end, and then, the desired signal can be formed in the desired direction. In other directions, the received signal not only changes in power, but also changes in phase information, making information difficult to be cracked by eavesdroppers. In this paper, a circular antenna array-based DM design is proposed for the first time, and different circular radius on directional modulation technology is studied.
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