公开(公告)号：EP1990864A4

公开(公告)日：2011-10-19

申请号：EP07715057

申请日：2007-02-28

Applicant: SOSHIN ELECTRIC

Inventor： KIMURA HIRONOBU ,  MIZUTANI YASUHIKO ,  URANO MASAKI ,  KASAI TAKENORI

IPC: H01P1/205 ,  H01P1/203 ,  H01P5/10 ,  H03H7/01

CPC classification number: H03H7/0123 ,  H01P1/20345 ,  H03H7/38 ,  H03H2001/0078 ,  H03H2001/0085

公开(公告)号：EP1816701A4

公开(公告)日：2007-11-21

申请号：EP05809718

申请日：2005-11-25

Applicant: SOSHIN ELECTRIC

Inventor： KIMURA HIRONOBU ,  HIRAI TAKAMI ,  MIZUTANI YASUHIKO ,  URANO MASAKI

IPC: H01P1/203 ,  H01P1/205 ,  H01P5/10

CPC classification number: H01P1/205 ,  H01P1/20345

Abstract: A dielectric substrate (12) includes a filter unit (20), a non-balance/balance conversion unit (22), and a connection unit (24) for electrically connecting the filter unit (20) to the non-balance/balance conversion unit (22) which are formed in the dielectric substrate (12). A first resonator (26) has an electrode (36) formed on the main surface of a fourth dielectric layer (S4) and a via hole (38) penetrating through a first to a third dielectric layers (S1 to S3) and connecting the electrode (36) to a grounding electrode (18). A second resonator (28) has an electrode (42) formed on the main surface of the fourth dielectric layer (S4) and a via hole (44) penetrating through the first to the third dielectric layers (S1 to S3) and connecting the electrode (42) to the grounding electrode (18).