On the design of a dual-band base station wire antenna

A dual-band base station wire-antenna design is presented. The MoM and the simulated-annealing technique, for optimizing the antenna geometry, are use d. The procedure starts from the design of a primary radiator, consisting f rom a dielectric-covered driven dipole and a parasitic element. A Chebyshev antenna array is checked in both the 900 and 1800 MHz frequency bands, wit h and without the appropriate feed network. All the electrical characterist ics, as well as the patterns of the antenna, are presented.