Calculated Scan Impedance for Array with Groundplane and Two Dielectric Slabs

11 CALCULATED SCAN IMPEDANCE FOR ARRAY WITH GROUNDPLANE AND TWO DIELECTRIC SLABS 

Undoubtedly, many readers have not felt too comfortable being dragged around the complex plane as was just demonstrated above. For those who prefer exact 

As stated in the previous section, it clearly leads to a lower VSWR rather than inaeasing the bandwidth. However, it must be pointed out that no formal optimization for either one of these two features was performed. 

Finally, we show in Fig. 6.13 the scan impedance for scanning at 30°, 45°, and 60°, respectively, in the H plane, while Fig. 6.14 shows the f -plane scan at the same scan angles. Compared to the single-slab cases shown in Figs. 6.8 and 6.9, we observe that the double-slab case continues to be superior to the single-slab 

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