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.

Date of Patent:
Sep. 09, 2014

Filed:

Aug. 29, 2012
Applicants:

Moon Suk Jeong, Gyeonggi-do, KR;

Nam Heung Kim, Gyeonggi-do, KR;

Hyun Paek, Gyeonggi-do, KR;

Su Kyong Kim, Chungcheongnam-do, KR;

Shin Hwan Hwang, Gyeonggi-do, KR;

Yoo Sam NA, Seoul, KR;

Inventors:

Moon Suk Jeong, Gyeonggi-do, KR;

Nam Heung Kim, Gyeonggi-do, KR;

Hyun Paek, Gyeonggi-do, KR;

Su Kyong Kim, Chungcheongnam-do, KR;

Shin Hwan Hwang, Gyeonggi-do, KR;

Yoo Sam Na, Seoul, KR;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/22 (2006.01);
U.S. Cl.
CPC ...
Abstract

Provided is a multi-band amplifier and a method of amplifying a multi-band. The multi-band amplifier includes a wireless signal input terminal into which a first frequency band signal and a second frequency band signal are input, a first impedance matching part connected to the wireless signal input terminal and configured to match an input impedance in a first frequency band, a second impedance matching part connected to the wireless signal input terminal and configured to match an input impedance in a second frequency band, a common source amplifier to which the first impedance matching part and the second impedance matching part, and a common gate amplifier connected to the common source amplifier. Accordingly, performance degradation can be reduced in comparison with a conventional amplifier, broadband amplification as well as narrow band amplification can be performed, and an amplification gain can be adjusted.


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