Advanced packaging is becoming a key differentiator for the high end of the mobile phone market, enabling higher performance, ...

A vector modulation approach based on 4-D antenna arrays is proposed for the directional modulation (DM) of physical-layer secure communication. This approach utilizes the time modulation function of ...

A novel and accuracy phased array calibration method is presented in this paper. The method improves the rotating-element electric-field vector (REV) method, where the phase of each element is changed ...

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