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In view of the unique spatial electromagnetic field distribution characteristics embodied by vortex electromagnetic waves and the theoretical orthogonal characteristics of infinite dimensional modes of orbital angular momentum carried by them, vortex electromagnetic waves show important research value and application potential in the field of wireless communication and radar detection and imaging. Starting from the distribution and principle of the spatial electromagnetic field of vortex electromagnetic waves, a double ring equalization antenna array with alternating array elements arranged in the C-band is designed, and a 4-channel 1-minute 8 stacked feed network is designed based on the advantages of strong stripline shielding performance, so as to produce a vortex antenna feeder system with four mixed modes (+1,-1,+2,-2). By building a hybrid modal vortex electromagnetic wave large-capacity communication system to test the modal isolation between the sending and receiving antenna feeders is greater than 15dB, on this basis, a software defined radio platform is added to verify the transmission characteristics of the multi-channel vortex wave signal of the communication system, and the test verifies that all four ports can correctly receive and demodulate electromagnetic signals, so as to achieve a 4-fold improvement in spectral efficiency.