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. 07, 2006
Filed:
Feb. 26, 2004
Applicants:
Hong-long Wung, Yunlin, TW;
Chi-yang Chang, Taipei, TW;
Dow-chih Niu, Taipei, TW;
Inventors:
Assignee:
Chung Shan Institute of Science and Technology, Taoyuan, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P 1/203 (2006.01);
U.S. Cl.
CPC ...
Abstract
The parallel-coupled-resonator coupled line filter with open-and-short end, comprises an input port for receiving an input signal; a bent first resonator and a bent third resonator where their both ends are open circuited; a second resonator whose both ends are shorted to ground; and an output port for outputting signal. Wherein, designing cross coupling between the third resonator and the first resonator to obtain a steep frequency response and reduce the interference of the image signal.