Patent ID: 7782975
Filing Date: 2010-08-24
Classification: H04B,H04L

Abstract:
1. A modulator used to generate a pulse train carrier-less impulse modulated Radio Frequency signal from a data source comprising: A Band Pass Filter having a fundamental frequency; a pulse train generator in electrical communication with a data source; said pulse train generator capable of producing a pulse train of selected pulse numbers, pulse periods, and pulse amplitudes indicating a modulation event when receiving data from said data source; an input impedance matching network; said input impedance matching network in electrical communication with said pulse train generator and said Band Pass Filter; said input impedance matching network configured such that said input impedance matching network transforms the output impedance of said pulse train generator to the input impedance of said Band Pass Filter such that a pulse train indicating a modulation event generated by said pulse train generator is supplied to said Band Pass Filter causing said Band Pass Filter to ring at the fundamental frequency of said Band Pass Filter generating a carrier-less impulse modulated Radio Frequency signal at the output of said Band Pass Filter; an output impedance matching network; and, said output impedance matching network in electrical communication with the output of said Band Pass Filter and configured such that said output impedance matching network transforms the output impedance of said Band Pass Filter to match input impedances of other stages of a radio system used to broadcast said pulse train carrier-less impulse modulated Radio Frequency signal.