Inventor
CHA JEONG-HYEON
KR2 patents
Patents
2 patentsUS7551904B2Jun 23, 2009
Apparatus and method for high efficiency power amplification for a mobile communication system
SAMSUNG ELECTRONICS CO LTD9 citations81
US7489188B2Feb 10, 2009
Input matching apparatus and method for power amplifier using delta-sigma modulated signal
SAMSUNG ELECTRONICS CO LTD6 citations71