Half-Sized Vertical Monopole Ultra-Wideband (UWB) Antennas for Mobile Applications

Compact dual-band and triple-band ultra-wideband (UWB) antennas based on a half-sized monopole for mobile applications are proposed. The antennas are placed vertically at one corner of the ground plane of a mobile terminal. A wider antenna impedance bandwidth is achieved by adjusting the length of the lower edge of the monopole. Details of the proposed antenna as well as simulated and measured results are presented.