A design approach for radiating cylindrical multilayered structures

We preset an efficient systematic design and optimization approach for cylindrical multilayer conformal antennas. The approach is based on integral equation method (IEM) in connection with method of moment (MoM). The dyadic Green´s function is computed in spectral domain (SD) in a generalized transmission line model (GTL) (B. Biscontini, et al., 2004), The current density distribution is computed by method of moment in SD as described in (R. E. Collin, 1991). The space domain (SPD) field is obtained integrating in closed form the SD field approximated using the generalized pencil of function method (GPOF) (Y. L. Chow, et al., March 1991), (Y. Hua and T. Sarkar, 1990), (Cu. Tokgoz and G. Dural, Jan. 2000). Using an asymptotic approximation for obtaining the radiation characteristics, we show that a beam-shaping optimization can be done efficiently and systematically based on network concepts. The numerical computations are validated by measurements