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

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 si...

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Published inJournal of Microwaves, Optoelectronics and Electromagnetic Applications Vol. 19; no. 1; pp. 118 - 128
Main Authors Araújo, José Bruno O. de, Souza, Vanessa P. R. Magri, Ferreira, Tadeu N., Matos, Leni J. de, Siqueira, Glaucio L., Souza, Jorge M., Silva, Maurício W. B. da
Format Journal Article
LanguageEnglish
Published Brazilian Microwave and Optoelectronics Society 01.03.2020
Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo
Sociedade Brasileira de Microondas e Optoeletrônica; Sociedade Brasileira de Eletromagnetismo
Subjects
electromagnetic bandgap
Electromagnetism
Engineering Sciences
ENGINEERING, ELECTRICAL & ELECTRONIC
metamaterial
microstrip
OPTICS
phased array
phased array
electromagnetic band-gap
metamaterial
Microstrip
microstrip
electromagnetic bandgap
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Summary: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.
ISSN:2179-1074
2179-1074
DOI:10.1590/2179-10742020v19i11773