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