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:
Jul. 04, 2017
Filed:
Jan. 22, 2016
Applicant:
Electronics and Telecommunications Research Institute, Daejeon, KR;
Inventors:
Seon-Ho Han, Daejeon, KR;
Cheon-Soo Kim, Daejeon, KR;
Nam Nguyen Hoai, Daejeon, KR;
Ki-Su Kim, Daejeon, KR;
Assignee:
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/32 (2006.01); H03H 11/04 (2006.01); H03F 3/193 (2006.01); H03F 3/45 (2006.01); H03G 5/28 (2006.01);
U.S. Cl.
CPC ...
H03F 1/3241 (2013.01); H03F 1/3211 (2013.01); H03F 3/193 (2013.01); H03F 3/45179 (2013.01); H03F 3/45475 (2013.01); H03G 5/28 (2013.01); H03H 11/0466 (2013.01); H03H 11/0472 (2013.01); H03F 2200/451 (2013.01);
Abstract
A bandpass filter that provides a wide gain control range is provided. The bandpass filter performs channel filtering and gain control while maintaining the bandpass characteristic of the bandpass filter. The bandpass filter enables gain control for a wide signal amplitude range while maintaining performance characteristics, such as an out-of-band attenuation ratio capable of high linearity and good pass-band flatness.