Crossbar fractal quasi self-complementary UWB antenna

A miniature Ultra-wideband (UWB) quasi self-complementary antenna with crossbar fractal boundary for ultra-wideband is presented. The proposed antenna has a total size of 16 mm × 12 mm × 1.5 mm that enables embedding in various portable devices with wide impedance bandwidth covering the range from 3.1–11.5 GHz with reflection coefficient better than −10dB. It also exhibits a much-reduced ground plane effect compared to the stand-alone design. Omnidirectional radiation pattern with appreciable gain across the operating band is obtained.