Wave transmission lines and networks – Plural channel systems – Having branched circuits
Reexamination Certificate
2011-05-25
2011-12-06
Pascal, Robert (Department: 2817)
Wave transmission lines and networks
Plural channel systems
Having branched circuits
C333S126000, C333S129000
Reexamination Certificate
active
08072292
ABSTRACT:
A high-frequency module includes a balanced demultiplexer including a pair of balanced signal terminals and that has at least one of high differential isolation and high differential attenuation. A distance between an antenna terminal and a second balanced signal terminal provided on a mounting surface of a circuit board is greater than the antenna terminal and a first balanced signal terminal. On a back surface of the circuit board, a distance between a first back surface side electrode pad to which the antenna terminal is connected and a fourth back surface side electrode pad to which the second balanced signal terminal is connected is less than a distance between the first back surface side electrode pad to which the antenna terminal is connected and a third back surface side electrode pad to which the first balanced signal terminal is connected.
REFERENCES:
patent: 7242268 (2007-07-01), Hagiwara et al.
patent: 2004/0257172 (2004-12-01), Schmidhammer et al.
patent: 2006/0028298 (2006-02-01), Nakamura et al.
patent: 2007/0296521 (2007-12-01), Schmidhammer
patent: 2008/0284540 (2008-11-01), Nishihara et al.
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Official Communication issued in International Patent Application No. PCT/JP2009/005281, mailed on Nov. 17, 2009.
Official Communication issued in corresponding Japanese Patent Application No. 2010-502378, mailed on Mar. 30, 2010.
Glenn Kimberly
Keating & Bennett LLP
Murata Manufacturing Co. Ltd.
Pascal Robert
LandOfFree
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