Abstract: A flexible strap-like antenna which may be supported on the outside surface of an aerostat includes a first substrate member having conductors thereon in a pattern which includes a center conductor and dipole antennas on either side of the center conductor. A ground conductor is disposed over the center conductor and is electrically insulated from it by an insulating strip sandwiched between them. A second or covering substrate seals the layered arrangement.To achieve broad band operation, an array of antennas is provided with the width of the center conductor being varied for certain different sections thereof.