Sughrue Mion, PLLC
Distributed amplifier and integrated circuit
A plurality of transistors operate as amplification elements. An input side coupling circuit comprises a plurality of distributed constant lines connected in series, one terminal of which is an input terminal and the other terminal of which is a bias input terminal. Each of the connection nodes between these distributed constant lines is connected to each of the inputs of the transistors. An output side coupling circuit comprises a plurality of distributed constant lines connected in series, one terminal of which is an output terminal and the other terminal of which is a bias input terminal. Each of the connection nodes between these distributed constant lines is connected to each of the outputs of the transistors. A termination circuit is provided at the input side coupling circuit or the output side coupling circuit. The termination circuit comprises: a first resistor connected between the bias input terminal and a power supply; and a second resistor connected between this bias input terminal and the ground voltage. The resistance value of the first resistor is equal to or less than that of the second resistor.
NEC Corporation
H
H03F
inventional
Yasuyuki
Suzuki