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. 05, 2013
Filed:
Feb. 10, 2011
Ki Joong Kim, Jeollabuk-do, KR;
Youn Suk Kim, Gyunggi-do, KR;
Seong Geon Kim, Gyunggi-do, KR;
Jun Goo Won, Gyunggi-do, KR;
Joong Jin Nam, Seoul, KR;
Ki Joong Kim, Jeollabuk-do, KR;
Youn Suk Kim, Gyunggi-do, KR;
Seong Geon Kim, Gyunggi-do, KR;
Jun Goo Won, Gyunggi-do, KR;
Joong Jin Nam, Seoul, KR;
Samsung Electro-Mechanics Co., Ltd., Gyunggi-do, KR;
Abstract
There is provided a power amplifier circuit capable of improving cross isolation between a high frequency band power coupler and a low frequency band power coupler, by directly transmitting power to the high frequency band power coupler and the low frequency band power coupler from a power amplifier, and forming a predetermined inductance circuit or an LC resonance circuit in a line transmitting the power to the high frequency band power coupler. The power amplifier circuit may include a power amplifying unit supplied with power from the outside and amplifying an input signal, a coupling unit having a high frequency band power coupler and a low frequency band power coupler, and an isolation unit including a first power line and a second power line, wherein the first power line has an inductor blocking signal interference generated in a predetermined frequency band.