Input impedance matching circuit for low noise amplifier

Details Input impedance matching circuit for low noise amplifier Input impedance matching circuit for low noise amplifier

2007-11-20

2007-11-20

Nguyen, Patricia (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including gain control means

C330S302000, C330S307000, C327S314000

Reexamination Certificate

active

11224557

ABSTRACT:
An input impedance matching circuit for a low noise amplifier includes a source pad, a gate pad, an input transistor, a source degeneration inductor and a matching capacitor. The gate pad receives an input signal and the input transistor amplifies the input signal transmitted from the gate pad. The source degeneration inductor electrically coupled to an external ground voltage is adapted for input impedance matching of the low noise amplifier. The source pad is coupled to a source electrode of the input transistor and the matching capacitor is formed between the gate pad and the source pad extending the source pad to be disposed under the gate pad. Accordingly, impedance matching of the low noise amplifier may be facilitated and the gain and noise figure of the low noise amplifier may be improved.

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patent: KO0004338 (1992-06-01), None
patent: 11067486 (1999-09-01), None
English Abstract of Korean Publication No.: 1992-0004338.
English Abstract***.

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