Patent ID: 7514994

Claim:
Amplifier of microwave signals of wavelength λ including a particular number N of active components coupled in parallel to a load impedance via an adapter ( 3 ), said adapter ( 3 ) comprising: a particular number N of susceptance compensators ( 41 to 4 N; 4 a to 4 d ) respectively connected to the outputs of N active components ( 11 to 1 N; 1 a to 1 d ) to compensate the output susceptances of the active components ( 41 to 4 N; 4 a to 4 d ), and a circuit for combining and adapting the conductances ( 5 ) having N inputs respectively connected to the outputs of the N susceptance compensators ( 41 to 4 N; 4 a to 4 d ) and an output connected to the load impedance ( 2 ) of the amplifier, characterized in that the circuit for combining and adapting the load conductances ( 5 ) of the active components comprises a particular number of line sections organized on M levels, where M is an integer greater than 1, level 1 being connected to the outputs of the N susceptance compensators ( 41 to 4 N; 4 a to 4 d ) via N respective line sections (L( 1 , 1 ) to L( 1 ,N) of equal electrical length that is an integer multiple of λ/4, the level M is connected to the load of the amplifier and each level other than level 1 includes a particular number of line sections of equal electrical length that is an integer multiple of λ/2, and each line section of a level other than level 1 is connected to one or more line sections of the level that precedes it and the number of line sections of each level decreases as the number of levels from the first level increases.