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Title:
HIGH-FREQUENCY MODULE
Document Type and Number:
WIPO Patent Application WO/2012/093539
Kind Code:
A1
Abstract:
An objective of the present invention is to alleviate deterioration in isolation characteristics between communication signals even when space between mounted circuit elements narrows due to module miniaturization. Duplexers (DUP1, DUP2, DUP3) are arrayed and mounted on the upper surface of a layered body (900). In such a circumstance, the duplexer (DUP2) for W-CDMA [band 5], which is distanced from the frequency bands of the duplexers (DUP1, DUP3) for W-CDMA [band 1] and W-CDMA [band 2], which are near to one another, is positioned therebetween. The interval between the duplexers (DUP1, DUP3), which have transmission and receiving frequencies which are near to one another, is thus distanced, and undesirable electromagnetic coupling therebetween is alleviated thereby. Undesirable electromagnetic coupling between the duplexers (DUP1, DUP3) is further alleviated by the presence of the duplexer (DUP2), which has the distanced frequency band, therebetween.

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Inventors:
UEJIMA TAKANORI (JP)
Application Number:
PCT/JP2011/078243
Publication Date:
July 12, 2012
Filing Date:
December 07, 2011
Export Citation:
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Assignee:
MURATA MANUFACTURING CO (JP)
UEJIMA TAKANORI (JP)
International Classes:
H04B1/52
Domestic Patent References:
WO2010143471A12010-12-16
WO2004036687A12004-04-29
WO2003036806A12003-05-01
WO2010087307A12010-08-05
Foreign References:
JP2006211057A2006-08-10
JP2004363926A2004-12-24
JP2004064058A2004-02-26
JP2003152588A2003-05-23
JP2006333127A2006-12-07
JP2007097117A2007-04-12
Other References:
See also references of EP 2662985A4
Attorney, Agent or Firm:
Kaede Patent Attorneys' Office (JP)
Patent business corporation Kaede Patent Attorneys' Office (JP)
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