Amplifiers – With semiconductor amplifying device – Including distributed parameter-type coupling
Reexamination Certificate
2007-11-21
2009-08-04
Nguyen, Khanh V (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including distributed parameter-type coupling
Reexamination Certificate
active
07570117
ABSTRACT:
An amplifier device has an input distributor block to which a radio-frequency input signal to be amplified is fed via an input, and that has a number of distributor elements connected in series. Each distributor element splits the input signal supplied thereto into a divided signal and a remainder signal. The divided signal and the remainder signal are appropriately amplified and re-combined by combiner elements. The distributor elements, the amplifiers and the combiner elements are designed to operate in combination with one another so that the divided signals exhibit identical amplitudes among one another, the amplified signals exhibit identical amplitudes among one another, and the delay from the input to the output is the same for all of the amplifiers.
REFERENCES:
patent: 6396349 (2002-05-01), Takei et al.
patent: 2005/0046476 (2005-03-01), Albrecht et al.
patent: 103 33 127 (2005-02-01), None
Nguyen Khanh V
Schiff & Hardin LLP
Siemens Aktiengesellschaft
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