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. 01, 2014
Filed:
Feb. 13, 2009
Kwang-sun Park, Suwon-si, KR;
Suk-woo Lee, Bucheon-si, KR;
Jae-ok Seo, Bucheon-si, KR;
Dong-wan Chun, Incheon-si, KR;
Kwang-Sun Park, Suwon-si, KR;
Suk-Woo Lee, Bucheon-si, KR;
Jae-Ok Seo, Bucheon-si, KR;
Dong-Wan Chun, Incheon-si, KR;
Ace Technologies Corp., Incheon-Si, KR;
Abstract
A frequency-tunable filter using a sliding system is disclosed. The frequency-tunable filter includes: a housing, in which a multiple number of cavities are defined by partitions; a sub-cover, which is coupled to an upper portion of the housing and in which a guide groove is formed; at least one sliding member installed in the guide groove; a main cover coupled to an upper portion of the sub-cover; a resonator held in the cavity; and at least one tuning element coupled to a lower portion of the sliding member to be inserted inside the housing, where tuning is achieved by a sliding movement of the sliding member, and at least one first guide member is coupled to at least one side surface of the sliding member such that the first guide member guides a sliding movement by way of contact with the side surface of the guide groove.