Low noise amplifier

Details Low noise amplifier Low noise amplifier

1997-03-24

1999-07-20

Mottola, Steven

Amplifiers

With semiconductor amplifying device

Including frequency-responsive means in the signal...

330294, 330311, H03F 3191, H03F 3193

Patent

active

059260696

ABSTRACT:
A low noise amplifier includes an input matching means of an input stage and an output matching means of an output stage, a common source transistor and a common gate transistor serially connected between the input matching means and the output matching means, a first inductor connected between said common source transistor and common gate transistor a second inductor connected between the common point of said common source transistor and common gate transistor and the output stage of said common gate transistor. Therefore, the low noise amplifier allows the points of .GAMMA..sub.opt and G.sub.max to be closer to each other so that the noise and input gain simultaneous matching is performed, thereby improving the performance.

REFERENCES:
patent: 4112386 (1978-09-01), Everhart et al.
patent: 4342967 (1982-08-01), Regan et al.
patent: 4658220 (1987-04-01), Heston et al.
patent: 5015968 (1991-05-01), Podell et al.

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