Wide-band amplifier circuit with improved gain flatness

Details Wide-band amplifier circuit with improved gain flatness Wide-band amplifier circuit with improved gain flatness

2011-06-07

2011-06-07

Nguyen, Khanh V (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including frequency-responsive means in the signal...

C330S310000, C330S311000

Reexamination Certificate

active

07956692

ABSTRACT:
There is provided a wide-band amplifier circuit with improved gain flatness. The wide-band amplifier circuit includes a first resonant load unit connected to an operating power terminal, providing a preset first load, and forming a preset first resonant point, a second resonant load unit connected to the operating power terminal, providing a preset second load, and forming a second resonant point set to a frequency different from the first resonant point; a first amplification unit receiving operating power via the first load of the first resonant load unit, having an amplification band characteristic determined according to the first resonant point of the first resonant load unit, and amplifying an input signal; and a second amplification unit receiving operating power via the second load, having an amplification band characteristic determined according to the second resonant point, and amplifying an input signal from the first amplification unit.

REFERENCES:
patent: 5995814 (1999-11-01), Yeh
patent: 6509799 (2003-01-01), Franca-Neto
patent: 7193477 (2007-03-01), Chang et al.
patent: 2006/0170502 (2006-08-01), Cha et al.
patent: 100828187 (2008-04-01), None
Korean Office Action from KR application No. 10-2009-0051081.

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