Amplifiers – With semiconductor amplifying device – Including differential amplifier
Reexamination Certificate
2008-11-19
2010-10-12
Mottola, Steven J (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including differential amplifier
C330S195000
Reexamination Certificate
active
07812671
ABSTRACT:
A transformer and a structure thereof and a power amplifier are provided. The transformer includes a first inductor to a fourth inductor, a first capacitor, and a second capacitor. A first terminal of the first inductor receives a first signal. A first terminal of the second inductor is coupled to the first terminal of the first inductor. A first terminal of the third inductor receives a second signal, and a second terminal of the third inductor is coupled to a second terminal of the first inductor. A first terminal of the fourth inductor is coupled to the first terminal of the third inductor. The first capacitor is coupled between the first terminal of the first inductor and the first terminal of the third inductor. The second capacitor is coupled between a second terminal of the second inductor and a second terminal of the forth inductor.
REFERENCES:
patent: 6737948 (2004-05-01), Aoki et al.
patent: 6856199 (2005-02-01), Komijani et al.
patent: 7095283 (2006-08-01), Kee et al.
patent: 7365602 (2008-04-01), Bhatti et al.
patent: 7372336 (2008-05-01), Lee et al.
patent: 7397305 (2008-07-01), Kim et al.
Industrial Technology Research Institute
Jianq Chyun IP Office
Mottola Steven J
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