BAND-PASS FILTER

申请公布号：

US2015137911(A1)

申请号：

US201314401613

申请日期：

2013.04.01

申请公布日期：

2015.05.21

申请人：

NEC Corporation

发明人：

Kai Takafumi

分类号：

H01P1/207;H01P3/12

主分类号：

H01P1/207

地址：

Tokyo JP

摘要：

In order to prevent electrical characteristics from degrading, a band-pass filter includes: a dielectric substrate having an upper surface and a lower surface opposed to each other, the dielectric substrate extending in a waveguide axial direction; a pair of conductor layers respectively arranged on the upper surface and the lower surface of the dielectric substrate; two rows of through hole groups for sidewalls, which are formed at predetermined intervals in the waveguide axial direction so as to electrically connect the pair of conductor layers; and a plurality of through holes for electrically connecting the pair of conductor layers, the plurality of through holes being formed in parallel to the waveguide axial direction and arranged in a center of a waveguide formed in a region surrounded by the pair of conductor layers and the two rows of the through hole groups for sidewalls.

主权项：

1. A band-pass filter, comprising: a dielectric substrate having an upper surface and a lower surface opposed to each other, the dielectric substrate extending in a waveguide axial direction; a pair of conductor layers respectively arranged on the upper surface and the lower surface of the dielectric substrate; two rows of through hole groups for sidewalls, which are formed at predetermined intervals in the waveguide axial direction so as to electrically connect the pair of conductor layers; and a plurality of through holes for electrically connecting the pair of conductor layers, the plurality of through holes being formed in parallel to the waveguide axial direction and arranged in a center of a waveguide formed in a region surrounded by the pair of conductor layers and the two rows of the through hole groups for sidewalls.