发明授权
US5986520A Filter apparatus with circulator for use in radio apparatus transmitting
or receiving systems
失效
具有用于无线电设备发射或接收系统的环行器的滤波装置
- 专利标题： Filter apparatus with circulator for use in radio apparatus transmitting or receiving systems
- 专利标题（中）： 具有用于无线电设备发射或接收系统的环行器的滤波装置
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申请号： US604559申请日： 1996-02-21
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公开(公告)号： US5986520A公开(公告)日： 1999-11-16
- 发明人: Ichiro Abeno , Kenichi Kudo , Kiyokazu Sugai
- 申请人： Ichiro Abeno , Kenichi Kudo , Kiyokazu Sugai
- 申请人地址： JPX Kanagawa
- 专利权人： Fujitsu Limited
- 当前专利权人： Fujitsu Limited
- 当前专利权人地址： JPX Kanagawa
- 优先权： JPX7-206255 19950811
- 主分类号： H01P1/20
- IPC分类号： H01P1/20 ; H01P1/00 ; H01P1/213 ; H01P1/30 ; H01P5/12 ; H01P7/10
摘要：
Disclosed are a filter apparatus for use in a radio apparatus for multiplex radio communication used when a signal is branched, a jig for arranging dielectrics of the filter apparatus for use in a radio apparatus and a method for arranging dielectrics of the filter apparatus for use in a radio apparatus using the jig. A filter apparatus for use in a radio apparatus has a pair of dielectric filters having different frequency characteristics, which are connected to a common circulator, thereby reducing the number of the circulators to realize a reduction of size and a low cost of the radio apparatus and improvement of accuracy in communication.
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