Also, a useful combination of L1 and L4 is to let the sum of L1 and L4 be one half of the operational wavelength, λ, of the multi-stage amplifier. Regarding the sub-amplifiers which are comprised in the different embodiments of the invention, their exact design can be varied within the...
including a first plurality of single-ended amplifiers connected in series to form an input and an output, and a second plurality of single-ended amplifiers connected in series to form an input and an output. The two pluralities of cascade amplifiers are further interconnected with feedback paths...