High frequency amplifier having an attenuator

Details High frequency amplifier having an attenuator High frequency amplifier having an attenuator

2007-09-07

2008-10-28

Pascal, Robert J. (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including gain control means

Reexamination Certificate

active

07443243

ABSTRACT:
An amplifier for amplifying a reception signal, having an input terminal for inputting the reception signal from an antenna, has a grounded gate transistor of which gate is grounded in a high frequency manner and of which source is connected to the input terminal, a load element disposed between the drain of the transistor and a power supply, an output terminal connected to a connection node between the drain and the load element, and an attenuator selectively inserted between the drain and the output terminal.

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