公开(公告)号：US07196598B2

公开(公告)日：2007-03-27

申请号：US10332348

申请日：2001-07-06

申请人： Kenichi Maruhashi ,  Masaharu Ito ,  Keiichi Ohata

发明人： Kenichi Maruhashi ,  Masaharu Ito ,  Keiichi Ohata

IPC分类号： H01P1/028

CPC分类号： H01P1/2088

摘要： The present invention provides a filter exhibiting excellent filter characteristics and having less number of stages. A dielectric substrate (1) has one surface connected to a top conductor (2) and an opposite surface connected to a bottom conductor (3). A pair of rows of via-holes connecting together the top conductor (2) and the bottom conductor (3) are formed along the signal transfer direction. A slit (6) is formed in a portion of the top conductor (2) overlying the central resonator among a plurality of resonators. The slit (6) extends in a direction perpendicular to the signal transfer direction. Slits (7, 8) are formed in each of portions of the top conductor (2) overlying resonators disposed at both ends. A coplanar waveguide (9) mounted on the top conductor (2) is connected to the slit (7).

摘要翻译： 本发明提供了具有优异的过滤特性并且具有较少级数的过滤器。 电介质基板（1）具有连接到顶部导体（2）的一个表面和连接到底部导体（3）的相反表面。 沿着信号传送方向形成一对连接在一起的顶部导体（2）和底部导体（3）的通孔。 在多个谐振器中的覆盖中心谐振器的顶部导体（2）的一部分中形成狭缝（6）。 狭缝（6）沿垂直于信号传送方向的方向延伸。 在位于两端的谐振器的顶部导体（2）的每个部分中形成狭缝（7,8）。 安装在顶部导体（2）上的共面波导（9）连接到狭缝（7）。