ULTRA WIDE BAND PULSE SIGNAL GENERATOR

摘要

An ultra-wide band(UWB) pulse signal generator is provided to obtain the desired wave pattern of pulse by using a memory device in which the digital data of pre-calculated and pre-shaped pulse wave pattern is memorized, and a digital to analog (D/A) converter. An ultra-wide band(UWB) pulse signal generator comprises a pulse wave pattern memory(220), an address counter(210), a D/A converter(230) and a band pass filter(240). The pulse wave pattern memory(220) stores a pre-shaped pulse wave pattern data. The address counter(210) generates an address for reading the pre-shaped pulse wave pattern data based on a clock. The D/A converter(230) converts the pre-shaped pulse wave pattern data outputted from the pulse wave pattern memory(220) corresponding to the address generated by the address counter(210) into analog data based on the clock. The band pass filter(240) passes the desired band signal to make the pre-shaped pulse wave pattern data which is converted into the analog signal, to the desired frequency spectrum.