公开(公告)号：KR20090032187A

公开(公告)日：2009-04-01

申请号：KR20070097183

申请日：2007-09-27

Applicant: KOREA ELECTRONICS TECHNOLOGY

Inventor： KIM JIN SUP ,  MOON WON GYU

IPC: H01P1/203

CPC classification number: H01P1/203 ,  H01P1/2088 ,  H01P5/184 ,  H01P5/187

Abstract: A broadband filter of a suspended substrate structure is provided to secure a broadband and a wide stop band by inducing a load capacitance between a T type resonant circuit and a ground pattern. A broadband filter of a suspended substrate structure comprises a dielectric(111), an input line(112), an output line(118), a first resonant line(113), a second resonant line(115), and a bridge line(114). The dielectric has a predetermined dielectric constant. The input line is formed in one side of an upper surface of the dielectric. The output line is formed in the other side of a lower surface of the dielectric. The first resonant line and the second resonant line are formed on the lower surface of the dielectric, and have a T shape. The first resonant line is formed on a position corresponding to the input line. The second resonant line is formed on a position corresponding to the output line. The bridge line connects the first resonant line to the second resonant line. Both ends of the bridge line are connected to the ground pattern formed in a side of the dielectric.

Abstract translation: 提供悬置衬底结构的宽带滤波器，以通过在T型谐振电路和接地图案之间引起负载电容来固定宽带和宽阻带。 悬挂基板结构的宽带滤波器包括电介质（111），输入线（112），输出线（118），第一谐振线（113），第二谐振线（115）和桥接线 114）。 电介质具有预定的介电常数。 输入线形成在电介质的上表面的一侧。 输出线形成在电介质的下表面的另一侧。 第一谐振线路和第二谐振线路形成在电介质的下表面上，并具有T形。 第一谐振线形成在与输入线对应的位置上。 第二谐振线形成在与输出线对应的位置上。 桥接线将第一谐振线路连接到第二谐振线路。 桥接线的两端连接到形成在电介质一侧的接地图案。