Variable gain amplifier

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United States of America Patent

PATENT NO 11942913
APP PUB NO 20210021248A1
SERIAL NO

16978541

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A gain adjustment unit constituted by a distribution switch having a control terminal is provided in an input unit of an amplifier circuit. One end of a coupler is connected to an output line of the amplifier circuit, another end of the coupler is connected to an anode of a diode, and a monitor terminal is connected via a low-pass filter to a cathode of the diode. The anode of the diode is unbiased.

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Patent Owner(s)

Patent OwnerAddress
NIPPON TELEGRAPH AND TELEPHONE CORPORATION5-1 OTEMACHI 1-CHOME CHIYODA-KU TOKYO 1008116

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hamada, Hiroshi Tokyo, JP 208 4092
Nosaka, Hideyuki Tokyo, JP 71 253

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