Variable permittivity dielectric material loaded stepped-horn antenna
Variable permittivity dielectric material loaded stepped-horn antenna
Variable permittivity dielectric material loaded stepped-horn antenna
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Figure 4.24 Cross-polarization level versus frequency of the <strong>stepped</strong>-<strong>horn</strong> <strong>antenna</strong>s for(εr1 = 1.0 5r2 = 1.0), (ε r 1 = 1.4 5 7-2 = 1.4), (εr1 = 1.2 5r2 = 1.4), (εr1 = 1.4εrg = 1.2) and empty <strong>horn</strong> <strong>antenna</strong> with L = 91.1 mm.73