Dual linear polarization patch antenna array with high isolation and low cross-polarization

Abstract

This paper describes the design of a wideband dual linear polarization patch antenna array. The array, together with the feeding network is analyzed with HFSS software. The Return Loss, Isolation, and Radiation Patterns of the array are presented. The impedance bandwidth of this antenna array, corresponding to 14dB and 10dB Return Loss is 6.5% and 9.5% respectively. The isolation between the orthogonal polarization ports is better than 36 dB over the operating band. The cross-polarization is below ∼28 dB over the operating range