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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7Figure 2.3 Radiating aperture of a <strong>horn</strong> <strong>antenna</strong>.where c and d are given asand sectoral angles as and αb are given asThe presence of an abrupt discontinuity between the i-th and (i + 1)-th waveguide sections,as shown in Figure 2.4, requires representation of electromagnetic fields in each waveguidesections in terms of the sum of TE and TM modes (propagating and evanescent).