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. 04, 2017
Filed:
Aug. 04, 2014
Electronics and Telecommunications Research Institute, Daejeon, KR;
Chang Soo Kwak, Daejeon, KR;
Youn Sub Noh, Daejeon, KR;
Man Seok Uhm, Daejeon, KR;
So Hyeun Yun, Daejeon, KR;
Hong Yeol Lee, Cheongju-si, KR;
In Bok Yom, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
A tunable filter device that changes a central frequency and a bandwidth is provided. The tunable filter device may include a body forming a cavity together with a cover, a resonator attached to or integrally formed on a lower surface of the cavity, a frequency-tuning element including a head and a shaft, the shaft passed through the cover and inserted in the resonator, and a cam disposed on the head to contact the head, wherein an insertion length of the shaft is controlled by the cam.