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:
Apr. 12, 2005
Filed:
Jun. 24, 2003
Jin Chae Park, Daejeon, KR;
Dong Chan Woo, Daegu, KR;
Chung Kook Lee, Daejeon, KR;
Seong Yong Hong, Daejeon, KR;
Ki Jung Lee, Daejeon, KR;
Jin Chae Park, Daejeon, KR;
Dong Chan Woo, Daegu, KR;
Chung Kook Lee, Daejeon, KR;
Seong Yong Hong, Daejeon, KR;
Ki Jung Lee, Daejeon, KR;
Lattron Co., Ltd., Daejeon, KR;
Abstract
Provided is a distributed constant type filter. In a stacked body formed by stacking a plurality of printed circuit boards, signal line coil patterns on adjacent printed circuit boards face each another and are electrically connected together at both ends, and ground line coil patterns on adjacent printed circuit boards face each other and are electrically connected together at both ends. Accordingly, the distributed constant type filter has an attenuation characteristic superior to conventional distributed constant type filters while having an equivalent circuit completely different to the conventional distributed constant type filters. In addition, attenuation characteristics can be obtained without being greatly affected by a deviation upon a manufacturing process, and a process of manufacturing the filter is simple.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile