Patent ID: 11923811
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 1:
2. The high-frequency power amplifier according to claim 1, wherein the active element is a transistor having a gate terminal, a source terminal, and a drain terminal and
either the source terminal or the drain terminal of the active element is grounded, and wherein
in a case where the input matching circuit has the active element,
the input matching circuit has
a first inductor connected in series to the input terminal and the amplifying element,
a first capacitor whose one end is connected to the first inductor and whose other end is connected to either the source terminal or the drain terminal of the active element which is not grounded,
a first resistor whose one end is connected to the source terminal of the active element and whose other end is connected to the drain terminal of the active element, and
a second resistor which has high resistance and whose one end is connected to the gate terminal of the active element and whose other end is connected to the detection circuit, and
in a case where the output matching circuit has the active element,
the output matching circuit has
a first inductor connected in series to the amplifying element and the coupling circuit,
a first capacitor whose one end is connected to the first inductor and whose other end is connected to either the source terminal or the drain terminal of the active element which is not grounded,
a first resistor whose one end is connected to the source terminal of the active element and whose other end is connected to the drain terminal of the active element, and
a second resistor which has high resistance and whose one end is connected to the gate terminal of the active element and whose other end is connected to the detection circuit.