Demonstration of a Low-Cost Ultrawideband Transmitter in the 3.1–10.6-GHz Band

An architecture for the generation of short pulses based on a filter step response technique is described. One uses the transient response of a passive circuit to an input square signal. This approach is experimentally demonstrated by the generation of subnanosecond pulses compatible with the indoor frequency mask authorized by the Federal Communications Commission for ultrawideband applications. It is shown that a pulse repetition frequency of 1 GHz can be achieved. The effect of the transition time of the source is analyzed and is shown not to be a limitation.