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:
Feb. 09, 2010
Filed:
Oct. 25, 2006
Dong Suk Jun, Daejeon, KR;
Kyoung Ik Cho, Daejeon, KR;
Hong Yeol Lee, Chungcheongbuk-do, KR;
Dong Young Kim, Daejeon, KR;
Sang Seok Lee, Daejeon, KR;
Dong Suk Jun, Daejeon, KR;
Kyoung Ik Cho, Daejeon, KR;
Hong Yeol Lee, Chungcheongbuk-do, KR;
Dong Young Kim, Daejeon, KR;
Sang Seok Lee, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
Provided is a dielectric waveguide filter. The filter includes: a multi-layered structure of dielectric substrates having first and second ground planes at its top and bottom; first, second, and third waveguide resonators disposed at multiple layers within the multi-layered structure; converters for signal transition between input/output ports and the first and third waveguide resonators; first vias for forming the first, second, and third waveguide resonators; and second vias disposed at a boundary surface of the first waveguide resonator and the third waveguide resonator.