FILTER, DUPLEXER, COMMUNICATION MODULE, COMMUNICATION DEVICE

Title:

FILTER, DUPLEXER, COMMUNICATION MODULE, COMMUNICATION DEVICE

Document Type and Number:

WIPO Patent Application WO/2011/024579

Kind Code:

A1

Abstract:

The level of suppression in the disclosed balanced filter is improved by eliminating unneeded in-phase components and canceling an imbalance in bridging capacitance that exists between an input terminal and two output terminals. The balanced filter is provided with an input terminal, a filter element that filters a signal input into the input terminal, and a first output terminal and a second output terminal that differentially output a signal from the filter element, and a capacitor is connected between the input terminal and one output terminal of the first output terminal and the second output terminal.

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WO/1995/002285	SURFACE ACOUSTIC WAVE DEVICE FOR A DIFFERENTIAL PHASE-SHIFT DIRECT-SEQUENCE SPREAD-SPECTRUM SIGNAL RECEIVER
JP3922163	SURFACE ACOUSTIC WAVE APPARATUS

Inventors:

TSUTSUMI JUN (JP)
HARA MOTOAKI (JP)
INOUE SHOGO (JP)
UEDA MASANORI (JP)

Application Number:

PCT/JP2010/062148

Publication Date:

March 03, 2011

Filing Date:

July 20, 2010

Export Citation:

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Assignee:

TAIYO YUDEN KK (JP)
TSUTSUMI JUN (JP)
IWAKI MASAFUMI (JP)
HARA MOTOAKI (JP)
INOUE SHOGO (JP)
UEDA MASANORI (JP)

International Classes:

H03H9/64; H03H9/72

Domestic Patent References:

WO2005101657A1

2005-10-27

Foreign References:

JP2009010448A	2009-01-15
JP2005102328A	2005-04-14

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