Distributed amplifier and integrated circuit

Details Distributed amplifier and integrated circuit Distributed amplifier and integrated circuit

2006-08-14

2010-06-08

Mottola, Steven J (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including distributed parameter-type coupling

C330S295000

Reexamination Certificate

active

07733185

ABSTRACT:
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.

REFERENCES:
patent: 6463267 (2002-10-01), Akamine et al.
patent: 6727762 (2004-04-01), Kobayashi
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patent: 9-266420 (1997-10-01), None
patent: 2001-7657 (2001-01-01), None

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