Metasurface Cloaks to Decouple Closely Spaced Printed Dipole Antenna Arrays Fed by a Microstrip-to-Balanced Transmission-Line Transition

IEEE Access

Alexander B. Yakovlev¹  Doojin Lee² 

[1] Department of Electrical and Computer Engineering, University of Mississippi, Oxford, MS, USA;Maritime Technology Research Institute, Agency for Defense Development, Jinhae, Republic of Korea;

关键词: Antenna arrays;    beam steering;    elliptical metasurface;    mantle cloaks;    microstripto-balanced transmission-line transition;    mutual coupling;   

DOI  :  10.1109/ACCESS.2021.3112771

来源: DOAJ

【 摘 要 】

In this work, we present a numerical study of 1D and 2D closely spaced antenna arrays of microstrip dipole antennas covered by a metasurface in order to properly cloak and decouple the antenna arrays operating at neighboring frequencies. We show that the two strongly coupled arrays fed by a microstrip-to-balanced transmission-line transition are effectively decoupled in 1D and 2D array scenarios by covering the dipole antenna elements with an elliptically shaped metasurface. The metasurface comprises sub-wavelength periodic metallic strips printed on an elliptically shaped dielectric cover around the dipole antennas and integrated with the substrate. We present a practical design of cloaked printed dipole arrays placed in close proximity of each other and demonstrate that the arrays are decoupled in the near field and operate independently in the far field with their original radiation characteristics as if they were isolated.

【 授权许可】

Unknown