Distributed transconductance amplifier

摘要

An apparatus having an input transmission line, a plurality of amplifiers and an output transmission line is disclosed. The input transmission line may include a plurality of first inductors configured to receive an input voltage. The amplifiers may be configured to generate a plurality of intermediate currents by amplifying a plurality of intermediate voltages at a plurality of first nodes between the first inductors. The output transmission line generally includes a plurality of second inductors configured to generate an output current at an output node by combining the intermediate currents. Each of a plurality of second nodes connected to the second inductors may transfer a plurality of the intermediate currents. Each of the second inductors generally has a different one of a plurality of inductance values.

主权项

1. An apparatus comprising:
an input transmission line comprising a plurality of first inductors configured to receive an input voltage; a plurality of amplifiers configured to generate a plurality of intermediate currents by amplifications of a plurality of intermediate voltages at a plurality of first nodes between said first inductors; an output transmission line comprising a plurality of second inductors configured to generate an output current at an output node as a combination of said intermediate currents, wherein (i) each of a plurality of second nodes connected to said second inductors transfers a plurality of said intermediate currents and (ii) each of said second inductors has a different one of a plurality of inductance values; and one or more active loads configured to bias said second nodes with one or more currents.