Power-Combining Transformer Techniques for Fully-Integrated CMOS Power Amplifiers.
Kyu Hwan AnOckgoo LeeHyungwook KimDong Ho LeeJeonghu HanKi Seok YangYounsuk KimJaejoon ChangWangmyong WooChang-Ho LeeHaksun KimJoy LaskarPublished in: IEEE J. Solid State Circuits (2008)