From Fig.9, we can see that 12.9% (963MHz) BW is achieved for H=4.65mm which is 5.7% larger than that of the
structure A and 10.7% larger than BW of the antenna without DR loading. As shown in smith chart, two full loops in the
impedance locus are inside the vswr=2 circle. In the structure A, half portion of the second loop was outside which is
brought inside the vswr=2 circle in this structure. So from results of structures A and B, we can say that, in terms of BW,
it is more advantageous to load a DR around feed point than loading on feed point.