Small-sized on-chip CMOS power amplifier having improved...

Details Small-sized on-chip CMOS power amplifier having improved... Small-sized on-chip CMOS power amplifier having improved...

2008-05-13

2008-05-13

Nguyen, Khanh Van (Department: 2817)

Amplifiers

With semiconductor amplifying device

Integrated circuits

C330S276000

Reexamination Certificate

active

07372336

ABSTRACT:
A small-sized on-chip complementary metal-oxide semiconductor (CMOS) Power Amplifier having improved efficiency is provided herein. The on-chip CMOS power amplifier is capable of improving efficiency and maximizing output thereof by enhancing a K factor, which may cause a problem in a power amplifier having a distributed active transformer structure. The on-chip CMOS power amplifier having an improved efficiency and being fabricated in a small size, the on-chip CMOS power amplifier includes a primary winding located at a first layer, secondary windings located at a second layer, which is an upper part of the first layer, the secondary windings being located corresponding to a position of the primary winding, and a cross section for coupling the second windings with each other.

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