Design of a Microstrip Slot Antenna Filled by an Isosceles Triangle for UWB Applications

A novel microstrip slot antenna for UWB (Ultra Wideband) antenna applications is proposed. A slot antenna is filled by an isosceles triangle. This structure is fed by a single microstrip line with a fork-like tuning stub. Experiments are carried out to investigate its return loss, its radiation and its time domain behavior, which exhibit good radiation pattern and impedance bandwidth over the entire band of frequency. Time domain consideration also exhibits that this antenna can be used with short pulses.