Mutual Coupling Reduction in Phased Array Antennas Applying High-Impedance Surface at X Band

• Autor(a) principal: Araújo,José Bruno O. de
• Data de Publicação: 2020
• Outros Autores: Souza,Vanessa P. R. Magri, Ferreira,Tadeu N., Matos,Leni J. de, Siqueira,Glaucio L., Souza,Jorge M., Silva,Maurício W. B. da
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Journal of Microwaves. Optoelectronics and Electromagnetic Applications
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-10742020000100118
• topic: electromagnetic bandgap; metamaterial; microstrip; phased array

Abstract This paper presents a microstrip phased array using High Impedance Surface - Electromagnetic Bandgap (HIS-EBG) in order to minimize the effects of mutual coupling among the antenna elements. Each element of the array is fed by a coaxial cable allowing the beam steering by controlling the signal of the input port of each element. This phased array operates at X Band as well as the bandgap of the HIS-EBG structure. Its main applications are satellite communication and broadcasting systems. Results show reductions in the mutual coupling up to 12 dB, and improvements in the return loss and gain.