发明授权
- 专利标题： Dielectric filter, antenna duplexer, and communications appliance
- 专利标题（中）： 介质滤波器，天线双工器和通讯设备
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申请号： US10337995申请日： 2003-01-08
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公开(公告)号： US06747528B2公开(公告)日： 2004-06-08
- 发明人: Tomoya Maekawa , Hiroshi Kushitani , Hiroshi Shigemura , Toru Yamada , Toshio Ishizaki , Hideaki Nakakubo
- 申请人： Tomoya Maekawa , Hiroshi Kushitani , Hiroshi Shigemura , Toru Yamada , Toshio Ishizaki , Hideaki Nakakubo
- 优先权： JP2000-159521 20000530; JP2000-193815 20000628
- 主分类号： H01P512
- IPC分类号： H01P512
摘要：
A dielectric filter including a plurality of resonators, and at least one transmissions line provided among said plurality of resonators. A band rejection characteristic is formed around a resonance frequency of said resonator, and a line length of said transmission line is shorter than ¼ of a wavelength corresponding to the resonance frequency of said resonator.
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