The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 02, 1999
Filed:
Nov. 18, 1996
Young Kim, Seoul, KR;
Jong-Tae Park, Seongnam, KR;
Hong-Kee Kim, Seongnam, KR;
Young-Kon Lee, Seoul, KR;
Seung-Won Chung, Seoul, KR;
Seong-Hoon Lee, Seongnam, KR;
Soon-Chul Jeong, Ahnyang, KR;
Chul-Dong Kim, Seoul, KR;
Ik-Soo Chang, Seoul, KR;
SamSung Electronics Co., Ltd., Suwon, KR;
Abstract
A linear power amplifier and method for removing the intermodulation distortion with a predistortion system and a feed forward system. The linear power amplifier having a main power amplifier includes: a predistortion system for firstly suppressing the intermodulation signal generated upon amplification of an RF signal in the main power amplifier, by generating a harmonics corresponding to the input RF signal and a predistortion signal with coupling the RF signal to the harmonics; and a feed forward system for secondly suppressing the intermodulation signal by canceling the input RF signal and the output of the main power amplifier, extracting an intermodulation signal distortion, error-amplifying the extracted intermodulation signal distortion, and coupling the amplified intermodulation signal with the output of the main power amplifier.