Patent ID: 6400226
Filing Date: 2002-06-04
Classification: H03F

Abstract:
A distributed amplifier comprising:an input transmission line; an output transmission line; a terminating circuit, connected to said output transmission line, including a first capacitance and a first resistor connected in series to each other; a plurality of amplifier circuits connected between said input and output transmission lines, each amplifier circuit including a transistor for amplification, said transistor having a control input coupled to said input transmission line; and a plurality of series-connected circuits, provided for respective said amplifier circuits, each including a second capacitor and a second resistor connected in series to each other between said control input of said corresponding transistor and a reference potential, each having impedance lower than an input impedance of said transistor in a frequency band lower than a frequency, but higher than said input impedance in a frequency band higher than said frequency.