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:
Jan. 09, 2007
Filed:
Dec. 30, 2003
Junghyun Kim, Seoul, KR;
Daehee Lee, Seoul, KR;
Sanghwa Jung, Ansan, Kyunggi-Do, KR;
Youngwoo Kwon, Seongnam, Kyunggi-Do, KR;
Moon-seok Jeon, Seoul, KR;
Junghyun Kim, Seoul, KR;
Daehee Lee, Seoul, KR;
Sanghwa Jung, Ansan, Kyunggi-Do, KR;
Youngwoo Kwon, Seongnam, Kyunggi-Do, KR;
Moon-Seok Jeon, Seoul, KR;
Other;
Abstract
A multiple power mode amplifier provides a low and a high power mode without using switches. This amplifier may be used in radio frequency (RF) applications such as mobile telephones, pagers, portable digital assistants, and wireless e-mail devices. In the low power mode, the power consumption of the amplifier is reduced, which will increase operation time, especially important for battery-operated devices. In one implementation, the amplifier includes a number of impedance matching network units (, and), impedance transformer (), and a power stage (). An implementation provides further power consumption savings by modulating a bias of an amplifier stage.