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US 2023/0402997 A1Published application
High frequency variable attenuation circuit
AssigneeFujikura Ltd.
InventorMasayuki Yoshiyama
Life of this patent
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Abstract
A high frequency variable attenuation circuit includes an input terminal, an output terminal, a first resistor, a second resistor, a third resistor, and a first switching circuit. The first switching circuit has an output side resistor and an output side switching element that are connected in series to each other. The first switching circuit has a first circuit end connected to the second end of the second resistor and the output terminal, and a second circuit end connected to the ground.
Claims5
A high frequency variable attenuation circuit comprising:
- an input terminal;
- an output terminal;
- a first resistor having a first end connected to the input terminal, and a second end connected to a ground;
- a second resistor having a first end connected to the input terminal and the first end of the first resistor, and a second end connected to the output terminal;
- a third resistor having a first end connected to the second end of the second resistor and the output terminal, and a second end connected to the ground;
- and
- a first switching circuit having an output side resistor and an output side switching element that are connected in series to each other,
- wherein the first switching circuit has a first circuit end connected to the second end of the second resistor and the output terminal, and a second circuit end connected to the ground.
5 more elements
Dependencies are inferred from the claim text.