Low-Cost Dual-Polarized Crossed Slot Array
2020
This paper extends our previous design of dual-polarized crossed slot element to an array configuration. The radiating elements are crossed slots on the ground plane with simple symmetric stripline feed on both sides. A reflector is placed at the back of the array to enhance the forward radiation. A design of a $2\times 2$ planar crossed slot array is presented. Simulation demonstrates a gain of around 15 dBi and −10 dB impedance bandwidth of about 16%. The isolation between two ports is less than −34 dB across the band. The results indicate our existing cross slot design can be extended to array configurations for higher gains while maintaining its good isolation and bandwidth.
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