Open AccessDecoupling and Cloaking of Interleaved Phased Antenna Arrays Using Elliptical Metasurfaces
Author(s) -
Hossein Mehrpour Bernety,
Alexander B. Yakovlev,
Harry G. Skinner,
Seong-Youp Suh,
Andrea Alu
Publication year - 2019
Publication title -
ieee transactions on antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.652
H-Index - 200
eISSN - 1558-2221
pISSN - 0018-926X
DOI - 10.1109/tap.2019.2957286
Subject(s) - fields, waves and electromagnetics , aerospace , transportation , components, circuits, devices and systems
We apply the concept of electromagnetic invisibility/cloaking to improve the radiation properties and decouple two tightly spaced and interleaved phased linear antenna arrays of strip monopoles operating at close frequencies, in order to restore their isolated radiation patterns and eliminate the undesired cross-coupling between their elements. We realize this effect using elliptically shaped cloaking metasurfaces designed for mutually cross-coupled elements of the distinct arrays. We analyze and investigate the cloaking and decoupling effects in improving the functionality of the coupled arrays in terms of their radiation patterns and realized gain, respectively. As a result, the antenna arrays placed in close proximity of each other can radiate independently for a wide range of beam scanning angles, restoring the properties they would have when isolated from each other.