Packaged Microstrip Line Feed Network on a Single Surface for Dual-Polarized 2<sup>N</sup>×2<sup>M</sup> ME-Dipole Antenna Array
Nadeem Ashraf, Abdel-Razik Sebak, Ahmed A. Kishk
Abstract
A packaged microstrip line feed network on a single substrate surface is presented in the Ka-band for a 4 × 4 dual-polarized array with a capability to be expanded to higher order 2 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">N</sup> × 2 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">M</sup> , where N and M are integer numbers larger than 1. A dual-polarized aperture-coupled magneto-electric dipole antenna is designed as a single element with 20% bandwidth of -10 dB reflection coefficients, ports' isolation better than 35 dB, cross polarization less than -25 dB within the main beam view-range of 30°, and gain of 8 dBi. A 4 × 4 array is implemented that maintains a bandwidth of 16.7% at 30 GHz with a maximum gain of 19.3 dBi.