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Sökning: WFRF:(Jonsson Anders) > Konferensbidrag > (2010-2014) > Jonsson Lars

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  • Gustafsson, Mats, et al. (författare)
  • Physical bounds on the partial realized gain
  • 2010
  • Ingår i: [Host publication title missing]. ; , s. 1-6
  • Konferensbidrag (refereegranskat)abstract
    • An antenna identity, derived from the forward scattering sum rule, shows that the partial realized gain of an antenna is related to the polarizability of the antenna structure. The partial realized gain contains the mismatch, directivity, efficiency, and polarization properties of the antenna. The antenna identity expresses how the performance depends on the electrical size and shape of the antenna structure. It is also the starting point for several antenna bounds. In this paper, the identity, its associated physical bounds, and computational aspects of the polarizability dyadics are discussed.
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  • Motevasselian, Alireza, et al. (författare)
  • A comparison of a finite and an infinite antenna array with cylindrical dielectric resonator elements
  • 2011
  • Ingår i: 2011 30th URSI General Assembly and Scientific Symposium, URSIGASS 2011. - 9781424451173
  • Konferensbidrag (refereegranskat)abstract
    • In this paper we compare radiation patterns and mutual coupling in finite and infinite square lattice arrays of dielectric resonator antenna (DRA) elements. The array elements are cavity backed, slot fed cylindrical DRAs that utilizes the HE11δ mode. It is observed that the degree of the mutual coupling for non-edge elements is very close to the mutual coupling between the corresponding elements in the infinite array. However, a large difference is observed in the mutual coupling between the center element and the two corner elements in the finite array with respect to the corresponding elements in the infinite array. The coupling is strongest in the E-plane and it is shown how it changes the embedded element patterns in the array.
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  • Resultat 1-4 av 4

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