Corporate-fed planar slot array antenna with high gain

In this paper, we present a novel cross-loop slot planar array antenna to obtain the enhancement in gain at the working frequency of 5.8 GHz. For the most efficient results, the basic structure of the antenna is a suspended stripline, the cross-loop slots are located on the upper layer which act as radiation elements, and the full-corporate-feed network etched on the bottom layer with a metal ground plane. In this case, this antenna shows impedance bandwidth (|S
₁₁
| <; -10 dB) of 11%, and broadside gain up to 25.3 dBi, side-lobes 11 dB below the main lobe, and the cross-polarization level less than -32 dB.