一种携带OAM波束的圆柱形阵列天线

he generation of vortex electromagnetic waves with orbital angular momentum is a hot spot in the field of wireless communication. Based on the theory of phased circular array antenna and linear array antenna, a cylindrical antenna array radiating beams carrying OAM is proposed. To improve the directivity of several modes of the array antenna, genetic algorithm is used to optimize the current excitation. The calculation results show that the directivity of the cylindrical array antenna is much higher than the traditional circular phased array antenna, and the cylindrical array antenna optimized by genetic algorithm has better directional property with its radiation direction more concentrated.