Abstract

ABSTRACT Circular phased array antennas with a quasi-omnidirectional pattern to generate transverse orbital angular momentum (OAM) waves with modes and are designed at the frequency of 4 GHz. Proposed antennas consist of eight substrates integrated waveguide (SIW) H-plane horn elements and microstrip corporate feeding networks. Experimental results show that the mutual coupling between array antennas can be reduced by employing transverse OAM waves with different modes.

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