Mutual coupling reduction using plane spiral orbital angular momentum electromagnetic wave

ABSTRACT

Circular phased array antennas with a quasi-omnidirectional pattern to generate transverse orbital angular momentum (OAM) waves with modes $\text{l = 0 }$ and $-1$ 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.

KEYWORDS:

• Orbital angular momentum
• mutual coupling reduction
• circular phased array antennas
• radio communication

Disclosure statement

No potential conflict of interest was reported by the author(s).