The 204281 series from Molex are 2.4/5 GHz Side-fed cable Flexible Wi-Fi Antennas. They provide a gain of up to 3.5 dBi and can handle an input power of under 2 watts. The antennas measuring 35.00 x 11.00 x 0.10 mm are available with peel and stick mounting and are ideal for consumer, automotive and industrial applications. These antennas are available in various cable lengths with MHF and MHF4 connector options.
