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Abstract
A newly developed brick-wall antenna is presented in this paper. A number of parasitic dipoles are placed in the vicinity of the original ones. The length of these dipoles is slightly shorter than that of the originals. This arrangement allows overlapping working bands, which approximately doubles the impedance bandwidth of the original brick-wall antenna. The design parameters of the developed antenna have been optimized for maximum bandwidth. The optimized antenna has been analyzed using a commercial full-wave electromagnetic simulator. The presented results show that the new antenna maintains all the appealing features of the original one, in addition to a remarkably increased bandwidth.