发明授权
- 专利标题: Dielectric filter having coupling amount adjusting patterns
- 专利标题(中): 具有耦合量调节图案的介质滤波器
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申请号: US892723申请日: 1992-05-29
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公开(公告)号: US5227747A公开(公告)日: 1993-07-13
- 发明人: Tomokazu Komazaki , Katsuhiko Gunji , Norio Onishi , Osamu Yamato , Akira Mashimo , Kouichi Ichikawa
- 申请人: Tomokazu Komazaki , Katsuhiko Gunji , Norio Onishi , Osamu Yamato , Akira Mashimo , Kouichi Ichikawa
- 申请人地址: JPX Tokyo
- 专利权人: Oki Electric Industry Co., Ltd.
- 当前专利权人: Oki Electric Industry Co., Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX2-31575 19900214
- 主分类号: H01P1/205
- IPC分类号: H01P1/205
摘要:
A dielectric filter includes a unitary dielectric block formed of a uniform, single dielectric material and having electrically conductive metallized patterns formed on front, rear and lateral walls, and on an outer bottom surface thereof. A plurality of coaxial dielectric resonators each including an open end and a central conductor are longitudinally arranged along the center of a top surface of the block and are spaced apart a predetermined distance. Frequency adjusting patterns are formed on the top surface of the block, each frequency adjusting pattern extending around an open end of a respective one of the resonators. Coupling amount adjusting patterns are also disposed on the top surface of the block, each connected to the front and rear walls and disposed between adjacent ones of the frequency adjusting patterns. At least one additional coupling amount adjusting pattern is disposed on the top surface of the block. The additional coupling amount adjusting pattern has a first end mechanically connected to the front wall and a second end capacitively coupled to the rear wall, a gap being provided between the second end and the rear wall. The additional coupling amount adjusting pattern determines a pre-adjusted maximum coupling amount larger than a coupling amount of the plurality of coupling amount adjusting patterns which are connected to the front and rear walls.
公开/授权文献
- US5926628A Selectable priority bus arbitration scheme 公开/授权日:1999-07-20