Wideband Patch Antenna with Differential Feed
نویسندگان
چکیده
This paper introduces a novel feeding technique aimed for increasing the bandwidth of a patch antenna. It is shown that by using two 180 degrees out of phase excited cylindrical probes, the bandwidth of a patch antenna can be dramatically increased. Based on the proposed differential cylindrical probes (DCP) feed, we designed a square patch antenna with 104% impedance bandwidth for VSWR<2:1. The consistent gain and pattern bandwidths are maintained over 60%. Proposed feed method also enhances the mechanical stability and enables better reproducibility when compared with other wide band patches. The performance of the designed antenna is verified by finite integration and finite element method comparisons.
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