BRANCHING FILTER, AND ELECTRONIC APPARATUS USING THE BRANCHING FILTER
摘要
A branching filter comprising two surface acoustic wave filters with different band center frequencies and a phase matching circuit for matching the phases of the two surface acoustic wave filters with each other, wherein one of the surface acoustic wave filters is a ladder type surface acoustic wave filter, and the other includes a plurality of double mode type surface acoustic wave filters parallel connected to one another.
申请公布号
WO03055067(A1)
申请公布日期
2003.07.03
申请号
WO2002JP10781
申请日期
2002.10.17
申请人
FUJITSU MEDIA DEVICES LIMITED;FUJITSU LIMITED;IWAMOTO, YASUHIDE;INOUE, SHOGO;IKATA, OSAMU;TSUTSUMI, JUN
发明人
IWAMOTO, YASUHIDE;INOUE, SHOGO;IKATA, OSAMU;TSUTSUMI, JUN