List of Figures 4.22 Theoretical, simulated and measured radiation patterns at the design frequency of 15 GHz for the conventional rectilinear HMLWA. 4.23 Theoretical, simulated and measured radiation patterns at the design frequency of 15 GHz for the conformal non-tapered HMLWA. 4.24 Theoretical, simulated and measured radiation patterns at the design frequency of 15 GHz for the conformal tapered HMLWA.. . 4.25 Theoretical, simulated and measured radiation patterns at the design frequency of 15 GHz for the conformal tapered SIW LWA.. .