EXTENDED OPERATIONAL BANDWIDTH AMPLIFIERS WITH FRACTIONAL INSTANTANEOUS BANDWIDTH FEED FORWARD CORRECTION

摘要

#$%^&*AU2019275570A120200716.pdf#####ABSTRACT OF THE DISCLOSURE Apparatus and method for extended operational bandwidth amplifiers with fractional instantaneous bandwidth feed forward correction. In one embodiment, the method includes amplifying a radio frequency (RF) input signal to provide an amplified RF signal and introducing a first delay in the amplified RF signal. The method also includes receiving an error signal of the amplified RF signal and centering a correction bandwidth with respect to the amplified RF signal. The method also includes amplifying the error signal and combining the amplified RF signal and the amplified error signal to reduce an error in the amplified RF signal. The first delay is smaller than a second delay caused by the error path.1/0 0oz w 00 C 0 i C -JI LU r-i-JUr (Y)500 510 AMPLIFY RF INPUT SIGNAL TO PROVIDE AMPLIFIED RF SIGNAL 520 INTRODUCE FIRST DELAY IN AMPLIFIED RF SIGNAL 530 RECEIVE ERROR SIGNAL OF AMPLIFIED RF SIGNAL 550 CENTER CORRECTION BANDWIDTH WITH RESPECT TO AMPLIFIED RF SIGNAL 560 AMPLIFY ERROR SIGNAL 570 COMBINE AMPLIFIED RF SIGNAL AND AMPLIFED ERROR SIGNAL TO REDUCE ERROR IN AMPLIFIED RF SIGNAL FIG. 4