A further aspect of the present invention is to provide an apparatus and method for automatically adjusting {HEAD ~ a Gain Bandwidth product} of a linear amplifying stage so as to process {TAIL ~ an input envelope signal} having a wide bandwidth 
A further aspect of the present invention is to provide an apparatus and method for automatically adjusting { HEAD ~ a Gain Bandwidth product } of a linear amplifying stage so as to process { TAIL ~ an input envelope signal } having a wide bandwidth
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH