Antenna Decoupling with a 3D Printed Tapered Ribbed Structure

Abstract

An analytical approach introduced in 1960 by Russian scientist Tereshin [1]–[2], for decoupling two antennas using an impedance surface is presented. An impedance surface expression is practically realized using corrugations of varied depth onto a cylindrical RF repeater platform and fabricated using 3D-printing. The coupling is measured and obtained results show that the impedance structure decreases the coupling by 11 dB over a wide range in KiKa-band.