Amplifiers – With semiconductor amplifying device – Including plural amplifier channels
Reexamination Certificate
2008-08-13
2009-12-22
Nguyen, Patricia (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including plural amplifier channels
C330S12400D, C330S149000, C330S054000
Reexamination Certificate
active
07636017
ABSTRACT:
Amplification transistors respectively amplify an input signal. The output terminals of the amplification transistors are connected in series through respective transmission lines. A harmonic processing circuit is connected to an end of the array of collectors (output terminals) of the amplification transistors. The harmonic processing circuit suppresses harmonics included in output voltages of the amplification transistors. A transmission line and an MIM capacitor form a shorting circuit which establishes a short-circuit for the harmonics between the collector of the amplification transistor nearest to the harmonic processing circuit and the collector of the amplification transistor farthest from the harmonic processing circuit.
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Leydig , Voit & Mayer, Ltd.
Mitsubishi Electric Corporation
Nguyen Patricia
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