Patent ID: 6054900
Filing Date: 2000-04-25
Classification: H01L,H03F

Abstract:
A power amplifier MMIC comprising:a first stage amplifier circuit having a transistor and matching circuits provided on input and output sides of said transistor;a plurality of final stage transistors connected in parallel;a first line connected between adjacent gates of said plurality of final stage amplifiers;a second line, connected between adjacent drains of said plurality of final stage amplifiers, for correcting an input signal phase shift caused by the presence of said first line; andan output matching circuit connected to one of connection points between said second line and said drains, and wherein:an output of said first stage amplifier circuit is coupled to one gate of a final stage transistor whose drain is not connected to said output matching circuit, andsaid first stage amplifier circuit and said plurality of final stage transistors are arranged longitudinally alongside each other.