High-frequency amplifier, feed-forward amplifier and...

Amplifiers – With distributed parameter-type coupling means

Reexamination Certificate

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C330S12400D, C330S286000, C330S295000

Reexamination Certificate

active

06894562

ABSTRACT:
A divider3for dividing and distributing a high-frequency signal input from an input terminal1to two output sides, a main amplifying unit4, connected to one output side of the divider3, for amplifying one high-frequency signal output from the divider3, a subsidiary amplifying unit5, connected to the other output side of the divider3, for performing no operation in case of a low instantaneous electric power of the other high-frequency signal output from the divider3and amplifying the other high-frequency signal in case of a high instantaneous electric power of the other high-frequency signal and a circulator6for injecting the high-frequency signal amplified in the subsidiary amplifying unit5into the output side of the main amplifying unit4and injecting the high-frequency signal amplified in the main amplifying unit4into an output terminal2are arranged.

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