Impulse UWB T/R MMIC modules for baseband digital signals

Impulse UWB transmitter/receiver (T/R) MMIC modules have been developed using InGaP/GaAs HBT MMIC technology. The modules consist of an impulse generator, an impulse detector, amplifiers, and self-complementary antennas, all in a differential mode. In these modules, UWB impulse signals with a frequency spectrum of more than 9GHz are directly generated from input baseband digital signals using the impulse generator. The pulse width of the impulse signal passing through the antennas is enlarged by the impulse detector so that commercially available analogue and digital ICs can be used. Using the modules, a 100 Mbps digital signal transfer has been successfully evaluated.