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公开(公告)号:JP4585431B2
公开(公告)日:2010-11-24
申请号:JP2005330335
申请日:2005-11-15
Applicant: 太陽誘電株式会社 , 富士通メディアデバイス株式会社
CPC classification number: H03H9/706 , H03H9/0571 , H03H9/0576 , H03H9/72 , H03H9/725
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公开(公告)号:JP3818896B2
公开(公告)日:2006-09-06
申请号:JP2001359567
申请日:2001-11-26
Applicant: 富士通メディアデバイス株式会社 , 富士通株式会社
CPC classification number: H03H9/725 , H01L2224/32225 , H01L2224/48091 , H01L2224/48227 , H01L2224/73265 , H01P1/2135 , H03H9/0576 , H03H9/6483 , H03H9/72 , H01L2924/00014 , H01L2924/00
Abstract: A duplexer includes a multilayer package, SAW filters that have different band center frequencies and are provided in the multilayer package, and a phase matching line that matches phases of the SAW filters and are provided in the multilayer package. A ground pattern with respect to the phase matching line is provided on a mount surface of the multilayer package.
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公开(公告)号:JP3778902B2
公开(公告)日:2006-05-24
申请号:JP2003124385
申请日:2003-04-28
Applicant: 富士通メディアデバイス株式会社 , 富士通株式会社
CPC classification number: H03H9/725 , H03H9/0576 , H03H9/6483 , H03H9/72 , H04B1/52
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公开(公告)号:JP4091043B2
公开(公告)日:2008-05-28
申请号:JP2004371079
申请日:2004-12-22
Applicant: 富士通メディアデバイス株式会社 , 富士通株式会社
CPC classification number: H03H9/564 , H03H9/0571 , H03H9/0576 , H03H9/14597 , H03H9/6456 , H03H9/706 , H03H9/72 , H03H9/725
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公开(公告)号:JP3532158B2
公开(公告)日:2004-05-31
申请号:JP2001034109
申请日:2001-02-09
Applicant: 富士通メディアデバイス株式会社 , 富士通株式会社
CPC classification number: H03H9/0576 , H03H9/02952 , H03H9/6483 , H03H9/72 , H03H9/725
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公开(公告)号:JP3967289B2
公开(公告)日:2007-08-29
申请号:JP2003126089
申请日:2003-04-30
Applicant: 富士通メディアデバイス株式会社 , 富士通株式会社
CPC classification number: H04B1/52 , H01L24/32 , H01L2224/32225 , H01L2224/48091 , H01L2224/48227 , H01L2224/49171 , H01L2224/73265 , H01L2924/30111 , H01L2924/00014 , H01L2924/00
Abstract: A duplexer includes two surface acoustic wave (SAW) filters having different center frequencies; a phase matching circuit that matches phases of the two SAW filters; a package in which the SAW filters and the phase matching circuit are housed, the package being composed of multiple layers; and a line pattern provided between at least one of the SAW filters and at least one of a transmit terminal and a receive terminal of the duplexer. The line pattern runs on at least two of the multiple layers within a range defined by peripheral ground patterns provided in the package.
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公开(公告)号:JP3833569B2
公开(公告)日:2006-10-11
申请号:JP2002134770
申请日:2002-05-10
Applicant: 富士通メディアデバイス株式会社 , 富士通株式会社
CPC classification number: H03H9/6469 , H03H9/0028 , H03H9/0076 , H03H9/0085 , H03H9/0576 , H03H9/6436 , H03H9/6476 , H03H9/6483 , H03H9/72 , H03H9/725 , H03H2250/00
Abstract: A duplexer includes two surface acoustic wave filter having different band center frequencies, and a phase matching circuit that matches the phases of the two surface acoustic wave filters to each other. In this duplexer, one of the two surface acoustic wave filters is a ladder type surface acoustic wave filter, while the other one of the two surface acoustic wave filters includes two or more dual-mode type surface acoustic wave filters that are connected in parallel.
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