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:
Dec. 11, 2012
Filed:
Jul. 09, 2010
Applicants:
Jongsik Lim, Daejeon, KR;
Dal Ahn, Chungcheongnam-do, KR;
Inventors:
Jongsik Lim, Daejeon, KR;
Dal Ahn, Chungcheongnam-do, KR;
Assignee:
Soonchunhyang University Industry Academy Cooperation Foundation, Chungcheongnam-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 7/38 (2006.01); H01P 3/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed herein is a dual band high frequency amplifier using a composite right/left handed (CRLH) transmission line (TL). Accordingly, a CRLH TL structure having a dual band characteristic is inserted into an input matching circuit and/or an output matching circuit in the high frequency amplifier, and a matching circuit is designed so that impedance matching is performed at two frequencies, thereby obtaining both gain and matching characteristics at the two frequencies.