| 摘要 |
According to the present invention, disclosed is a band pass filter using a spiral resonator, and more particularly, to a band pass filter having micro stripe lines formed on one substrate in a planar structure without using a via structure. According to one embodiment of the present invention, the band pass filter comprises: a first resonator symmetrically formed with respect to a first central axis, wherein the left side of the first central axis has a clockwise spiral shape and the right side of the first central axis has an anticlockwise spiral shape; a second resonator symmetrically formed with respect to a second central axis symmetrical to the first central axis with respect to a central axis of the band pass filter, formed to be point symmetry to the first resonator with respect to the central axis of the band pass filter, and keeping a first gap from the first resonator; and an input/output line including an input stub extended from one side of the first resonator and an output stub extended from the other side of the second resonator. The band pass filter is formed in a plain layout structure of a micro stripe line on one substrate. |
