Wide-band CEBG-based directive antenna

Recently, new periodic structures, cylindrical electromagnetic band gap (CEBG) structures, have been introduced and used as models to develop new directive antennas or new beam switching antennas. These structures are radially and circularly periodic, and they present pass-band and stop-band to cylindrical electromagnetic waves. In this paper, the design and experimental results for a new wide-band (78%) CEBG based-directive antenna are presented. This work was made under a project which consists on the design of an agile antenna for tactical communications in the band : 1.35 GHz - 2.7 GHz.