Patent ID: 9748904
Date: 2017-08-29
CPC Classifications: H03F

Claim:
1. A high frequency signal amplifying circuitry comprising: a first splitter; a first amplifier including a second splitter that divides a signal supplied from the first splitter, a first carrier amplifier, a first peak amplifier, and a first combiner that combines signals output from the first carrier amplifier and from the first peak amplifier; a second amplifier including a third splitter that divides a signal supplied from the first splitter, a second carrier amplifier, a second peak amplifier, and a second combiner that combines signals output from the second carrier amplifier and from the second peak amplifier; a first loop oscillation suppressor; and a third combiner that combines signals output from the first combiner and the second combiner, wherein the first loop oscillation suppressor is located between the second carrier amplifier and the first carrier amplifier or the second peak amplifier and the first peak amplifier, the second carrier amplifier is adjacent to the first carrier amplifier or the second peak amplifier is adjacent to the first peak amplifier, and the first loop oscillation suppressor includes a first resistor that connects between locations, which should be at the same potential, of the second carrier amplifier and the first carrier amplifier or the second peak amplifier and the first peak amplifier.