A Wideband Patch Antenna With Cross-Polarization Suppression

By introducing a meandering strip feeding structure, a patch antenna for wideband and lowcross-polarization operation is proposed. The investigation shows that this feeding technique is suitable for both planar and curved grounding structures, where the impedance bandwidths (SWR < 2) of 24% and 32% can be obtained, respectively. In both cases, the cross-polarization levels are less than -20 dB in E- and H-planes across the passband. Also, symmetrical and stable radiation patterns are obtained. Simulation results are compared with the experiments and a good agreement is observed.