A wide-band circularly polarized L-probe coupled patch antenna for dual-band operation," A reconfigurable patch antenna using switchable slots for circular polarization diversity," IEEE Microw.
Abstract-Footprint patterns can be efficiently synthesized by means of planar arrays with hundreds or thousands of elements: an efficient combination of Woodward-Lawson and Orchard-Elliott-Stern roots optimization procedure is suggested. This hybrid technique is applied to a footprint covering Europe by using planar arrays with isotropic elements and linearly polarized circular patches. The proposed method keeps under control both the side lobe and ripple level of the synthesized pattern.Index Terms-Antenna array pattern synthesis, footprint patterns, Orchard-Elliott-Stern (OES) method, planar arrays, Woodward-Lawson (WL) method.
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