Invention Grant
US07902945B2 Dual mode ring resonator filter with a dual mode generating line disposed inside the ring resonator
有权
双模式环形谐振器滤波器，其具有设置在环形谐振器内部的双模发生线
- Patent Title: Dual mode ring resonator filter with a dual mode generating line disposed inside the ring resonator
- Patent Title (中): 双模式环形谐振器滤波器，其具有设置在环形谐振器内部的双模发生线
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Application No.: US12117322Application Date: 2008-05-08
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Publication No.: US07902945B2Publication Date: 2011-03-08
- Inventor: Masatoshi Ishii , Kazunori Yamanaka , John D. Baniecki , Akihiko Akasegawa , Teru Nakanishi
- Applicant: Masatoshi Ishii , Kazunori Yamanaka , John D. Baniecki , Akihiko Akasegawa , Teru Nakanishi
- Applicant Address: JP Kawasaki
- Assignee: Fujitsu Limited
- Current Assignee: Fujitsu Limited
- Current Assignee Address: JP Kawasaki
- Agency: Fujitsu Patent Center
- Priority: JP2007-134501 20070521; JP2008-060429 20080311
- Main IPC: H01P1/203
- IPC: H01P1/203 ; H01B12/02
Abstract:
A dual-mode filter capable of providing a high degree of design freedom and/or tunability is disclosed. The dual-mode filter includes a ring resonator; an input feeder and an output feeder disposed substantially orthogonal with respect to each other and with respect to the ring resonator so as to be electromagnetically coupled to the ring resonator; and a dual-mode generating line disposed inside the ring resonator in a manner so that the dual-mode generating line does not overlap with a line extending from the input feeder or a line extending from the output feeder.
Public/Granted literature
- US20080297284A1 DUAL-MODE FILTER AND TUNING METHOD OF THE SAME Public/Granted day:2008-12-04
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