Patent ID: 7463103
Filing Date: 2008-12-09
Classification: H04B

Abstract:
1. A chaotic signal generator for an ultra wide band communication system comprising: a first signal generator for generating a first signal, the first signal including a first fundamental wave having a preset first frequency and a plurality of harmonic waves of the first fundamental wave; a second signal generator for generating a second signal, the second signal including a second fundamental wave having a preset second frequency and a plurality of harmonic waves of the second fundamental wave; a mixer for mixing the first signal from the first signal generator with the second signal from the second signal generator to generate a chaotic signal having a sum frequency of the first and second signals and the harmonic waves of the first and second signals; and a filter for passing a signal component of a preset band out of the chaotic signal from the mixers, wherein the first signal generator comprises: a plurality of inverter-type amplifiers connected in series; a feedback circuit having a feedback line commonly connected to input terminals and output terminals of the inverter-type amplifiers; and at least one delay circuit disposed between a signal line of the inverter-type amplifiers and the feedback line.