Multi-user time-hopping IR-UWB generator based on FPGA with high-speed serial module

In this paper we present an impulse radio ultra wideband generator based on a field-programmable gate array with high-speed serial module. By defining a pattern of one bit set to “1” and remaining bits set to “0” we generate a monopulse. By defining multiple patterns accordingly we generate time-hopping waveforms for multi-users. In order to shape the generated monopulses, either we apply them directly to the transmit antenna or we combine the complementary outputs after shifting one of them. Some experimental results are shown.