Radiation characteristics of Hertzian dipole antennas in a nonreciprocal superstrate-substrate structure

The Combined Effects of Chiral Operation in Multilayered Bianisotropic Substrates

“…2, both co-and cross-polarized components of the far-field are symmetrical to the direction θ = θ m = 0 • . Here θ m is the main beam direction and its definition is the same as in [28,44] (i.e., the beam due to the co-polarized component of the electric field only, and for x -directed dipole in the ϕ = 90 • plane this implies E ϕ component). Since the axes of the four constitutive tensors c (i) (c = ε, µ, ξ, η) in case (a) are chosen to be in the same direction (…”

“…The material parameters used for calculations are related to parameters used in the literature, and the losses of the materials are neglected here so that the attenuation by the bianisotropic substrates can not mask effects produced by chiral operation. In addition, it should be emphasized that the developed computer codes have been checked at first and all figures in [28,44] have been reproduced under the corresponding conditions.…”

Beam Diversity Analysis of Compact Microstrip Antenna with Suspended Superstrate: An Experimental Study

“…In steerable MSAs, higher the deflection angle , higher will be the scanning angle . This work is proposed for enhancing the directivity and realizing improved scanning angle [19]. The designed MSA is proposed for modern microwave radar communication as well as for satellite communication with improved gain and radiation efficiency.…”

“…In which the antenna feeding sources are replaced by the hertzian dipoles, these Hertzain dipoles replicate the far-field properties of the designed antenna. The far-field properties are analyzed [19] - [20].…”

Concise Spectral Formalism in the Electromagnetics of Bianisotropic Media

“…Many authors have carried out extensive studies on wave propagation, scattering and radiation in (bi)anisotropic media [3][4][5][6][7][8][9][10]. One of the most powerful method suited for analysis of bianisotropic media utilizes the well-known 4 × 4 matrix method in spectral domain [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28]. Based on the transition matrix obtained from this approach, many problems involving reflection, transmission and even the dyadic Green's functions have been successfully treated.…”