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. 17, 2007
Filed:
Aug. 23, 2004
Jong-kyu Park, Osan-si, KR;
Duk-yong Kim, Yongin-si, KR;
Gil-ho Lee, Yongin-si, KR;
Kwang-yeob Kim, Osan-si, KR;
Jae-hong Kim, Seoul, KR;
Yon-tae Kim, Yongin-si, KR;
Byung-chul Kim, Osan-si, KR;
Jong-Kyu Park, Osan-si, KR;
Duk-Yong Kim, Yongin-si, KR;
Gil-Ho Lee, Yongin-si, KR;
Kwang-Yeob Kim, Osan-si, KR;
Jae-Hong Kim, Seoul, KR;
Yon-Tae Kim, Yongin-si, KR;
Byung-Chul Kim, Osan-si, KR;
KMW, Inc., Hwaseong-si, KR;
Abstract
A variable radio frequency band filter capable of varying the resonance frequency band comprises a housing having a support; a number of resonator rods arranged along the longitudinal direction of the housing; at least one tuning rod positioned on top of the resonator rods; a tuning support extending through the respective tuning rods along the longitudinal direction of the housing and adapted to slide on top of the respective resonator rods to vary the position of the tuning rods; and a frequency variation unit positioned on a lateral surface of the housing. The frequency variation unit being coupled to an end of the tuning support and adapted to vary the position of the tuning rods, as the tuning support is slid, according to the frequency band.