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The dispersion diagram of a 2D periodic structure built in stripline technology is determined by full-wave simulation. One of the geometrical parameter of the structure is then binary modulated in two orthogonal directions, yielding a new periodic structure with a unit cell that is four times larger with respect to the original one. The calculated dispersion diagram of the latter structure exhibits...
Analysis of the scattering from a novel type of metasurface consisting of unit cells incorporating a width modulated coplanar waveguide (CPW) line is presented. The width modulated center conductor is circumscribed by two modulated parallel conductors which can play the role of ground planes in case of insertion of active devices. The structure provides flexibility of changing modulation over both...
Planar leaky-wave antenna (LWA) designs that utilize a printed surface wave (SW) source are presented. Specifically, by the addition of a periodic arrangement of width-modulated microstrip lines on top of a grounded dielectric slab (GDS), a sinusoidally modulated reactance surface (SMRS) can be realized, providing appropriate conditions for leaky wave (LW) radiation. In addition, a transition section...
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